Prosecution Insights
Last updated: August 17, 2026
Application No. 17/520,197

DEVICE, METHOD AND SYSTEM FOR REGULARIZATION OF A BINARY NEURAL NETWORK

Final Rejection §101
Filed
Nov 05, 2021
Priority
May 07, 2019 — continuation of PCTRU2019000313
Examiner
SIPPEL, MOLLY CLARKE
Art Unit
2122
Tech Center
2100 — Computer Architecture & Software
Assignee
Huawei Technologies Co., Ltd.
OA Round
5 (Final)
52%
Grant Probability
Moderate
6-7
OA Rounds
0m
Est. Remaining
78%
With Interview

Examiner Intelligence

Grants 52% of resolved cases
52%
Career Allowance Rate
12 granted / 23 resolved
-2.8% vs TC avg
Strong +26% interview lift
Without
With
+26.1%
Interview Lift
resolved cases with interview
Typical timeline
3y 9m
Avg Prosecution
17 currently pending
Career history
41
Total Applications
across all art units

Statute-Specific Performance

§101
35.4%
-4.6% vs TC avg
§103
29.7%
-10.3% vs TC avg
§102
11.3%
-28.7% vs TC avg
§112
22.6%
-17.4% vs TC avg
Black line = Tech Center average estimate • Based on career data from 23 resolved cases

Office Action

§101
DETAILED ACTION This action is responsive to the amendment filed on 05/20/2026. Claims 1-5, 7-18, and 20 are pending in the case. Claims 1, 11, and 14 are currently amended. Claims 1, 11, and 14 are independent claims. Notice of Pre-AIA or AIA Status The present application, filed on or after March 16, 2013, is being examined under the first inventor to file provisions of the AIA . Priority Acknowledgement is made of applicant’s claim for domestic priority based on PCT/RU2019/000313. Claim Rejections - 35 USC § 101 35 U.S.C. 101 reads as follows: Whoever invents or discovers any new and useful process, machine, manufacture, or composition of matter, or any new and useful improvement thereof, may obtain a patent therefor, subject to the conditions and requirements of this title. Claims 1-5, 7-18, and 20 are rejected under 35 U.S.C. 101 because the claimed invention is directed to an abstract idea without significantly more. Regarding claim 1: Step 1 Statutory Category: Claim 1 is directed to a machine, which falls within one of the four statutory categories. Step 2A Prong 1 Judicial exception: Claim 1 recites, in part, “change the binary weights of the BNN using a backpropagation method…wherein changing the binary weights increases or minimizes decrease of an information entropy of a weight distribution of the binary weights of the BNN”, “determining a weight distribution for each of a plurality of layers of the BNN”, and “determining an information entropy based on the determined weight distribution for each of the plurality of layers of the BNN”. These limitations are processes that, under the broadest reasonable interpretation covers the recitation of mathematical calculations, and mathematical relationships which fall within the “Mathematical concepts” grouping of abstract ideas, See MPEP § 2106.04(a)(2)(I)(C). Further, the claim recites: “increasing a backpropagation gradient for each of the plurality of layers, for which the information entropy is determined below a certain threshold”. This limitation, under the broadest reasonable interpretation, covers the recitation of a mathematical relationship, as directed to “a mathematical relationship is a relationship between variables or numbers. A mathematical relationship may be expressed in words or using mathematical symbols”. See MPEP §2106.04(a)(2)(I)(A). Accordingly, the claim recites an abstract idea. Step 2A Prong 2 Integration into a practical application: This judicial exception is not integrated into a practical application. In particular, the claim recites the additional elements – “a device”, “a processor”, “a memory storing instructions”, and “wherein the BNN is configured to operate within the memory”. These elements are additional elements that amount to adding the words “apply it” (or an equivalent) with the judicial exception, or mere instructions to implement an abstract idea on a computer, or merely uses a computer in its ordinary capacity as a tool to perform an existing process. See MPEP §2106.05(f). The claim also recites the additional element “obtain binary weights of a binary neural network (BNN) to be trained”, which is discussed in paragraph 0052 of applicant’s specification, “The device 100 is configured to obtain binary weights 102 of the BNN 101, e.g. to receive them from a training unit, or to determine them based on analyzing the BNN 101”. This element is recited at a high level of generality such that it amounts to mere data gathering. It is necessary to acquire the data in order to use the recited judicial exception. Therefore, the additional limitation is insignificant extra-solution activity to the judicial exception. Alternatively, determining them based on analyzing the BNN, covers performance of the limitation in the mind or pen and paper which falls under the “Mental Processes” grouping of abstract ideas, see MPEP § 2106.04(a)(2)(III). Further, the claim recites: “such that information capacity is increased, accuracy is improved, and overfitting is reduced”. This limitation is an additional element that generally links the use of the judicial exception to a particular technological environment or field of use. See MPEP §2106.05(h). Further, the claim recites: “classify data objects by using the trained BNN, including image recognition, natural language processing, or trajectory prediction of autonomous driving vehicles”. This limitation is an additional element that amounts to adding insignificant extra-solution activity to the judicial exception, see MPEP §2106.05(g). Step 2B Significantly more: The claim does not include additional elements that are sufficient to amount to significantly more than the judicial exception. As discussed above with respect to integration of the abstract idea into a practical application, the additional elements “a device”, “a processor”, “a memory storing instructions”, and “wherein the BNN is configured to operate within the memory” amount to adding the words “apply it” (or an equivalent) with the judicial exception, or mere instructions to implement an abstract idea on a computer, or merely uses a computer in its ordinary capacity as a tool to perform an existing process. Elements that merely amount to adding the words “apply it” (or an equivalent) with the judicial exception, or mere instructions to implement an abstract idea on a computer, or merely uses a computer in its ordinary capacity as a tool to perform an existing process cannot provide an inventive concept. Further, the additional element “obtain binary weights of a binary neural network (BNN) to be trained” is insignificant extra-solution activity to the judicial exception and is directed to receiving or transmitting data over a network which courts have recognized as well-understood, routine, and conventional when they are claimed in a generic manner, see MPEP §2106.05(d)(II). Further, the additional elements “such that information capacity is increased, accuracy is improved, and overfitting is reduced” and “wherein the trained BNN is used to classify data objects, including image recognition, natural language processing, or trajectory prediction of autonomous driving vehicles” generally link the use of the judicial exception to a particular technological environment or field of use. Elements that merely generally link the use of the judicial exception to a particular technological environment or field of use cannot provide an inventive concept. Alternatively, “classify data objects by using the trained BNN, including image recognition, natural language processing, or trajectory prediction of autonomous driving vehicles” is an additional element that amounts to adding insignificant extra-solution activity to the judicial exception. Furthermore, the additional element is well‐understood, routine, and conventional as taught by activity is supported under Berkheimer Option 2, Keller et al., U.S. Patent Application Publication No. 20190294972, Paragraph 0003, Lines 1-5, “Artificial neural networks (ANNs) are commonly used computing systems that address a wide variety of tasks, such as classification, image recognition, regression, function approximation, samples of data according to a learned distribution, etc.”. See MPEP § 2106.05(d). The claim is not patent eligible. Regarding claim 2, the rejection of claim 1 is further incorporated, and further, the claim recites: “wherein the backpropagation method includes a backpropagation of error gradients obtained during training of the BNN”. This limitation recites additional mathematical concepts in addition to the judicial exception identified in the rejection of claim 1, thus recites a judicial exception. The claim does not include any additional elements that amount to an integration of the judicial exception into a practical application, nor to significantly more than the judicial exception. The claim is not patent eligible. Regarding claim 3, the rejection of claim 1 is further incorporated, and further, the claim recites: “change the binary weights of the BNN separately for at least one filter or layer of the BNN”. This limitation is an additional element that amounts to adding insignificant extra-solution activity to the judicial exception. See MPEP §§ 2106.04(d), 2106.05(g). Accordingly, this additional element does not integrate the abstract idea into a practical application because it does not impose any meaningful limits on practicing the abstract idea. Backpropagation is a method to change binary weights that operates layer-by-layer, or effectively “separately” for at least one layer. The additional element is well‐understood, routine, and conventional as taught by activity is supported under Berkheimer Option 2, Thawakar, Backpropagation: Learning Factors, 12/11/2018, https://medium.com/@omee0805/backpropagation-learning-factors-aca9c6e3bc1 , Paragraph 1, Lines 8-9, “Backpropagation is the widely used and most successful algorithm for the training of a neural network of all time”. Accordingly, the claim does not include any additional elements that amount to an integration of the judicial exception into a practical application, nor to significantly more than the judicial exception. The claim is not patent eligible. Regarding claim 4, the rejection of claim 1 is further incorporated, and further, the claim recites: “change the binary weights of the BNN in real-time during training of the BNN”. This limitation is an additional element that amounts to adding insignificant extra-solution activity to the judicial exception. See MPEP §§ 2106.04(d), 2106.05(g). Accordingly, this additional element does not integrate the abstract idea into a practical application because it does not impose any meaningful limits on practicing the abstract idea. Backpropagation is a method that changes binary weights in real-time during training. The additional element is well‐understood, routine, and conventional as taught by activity is supported under Berkheimer Option 2, Thawakar, Backpropagation: Learning Factors, 12/11/2018, https://medium.com/@omee0805/backpropagation-learning-factors-aca9c6e3bc1 , Paragraph 1, Lines 8-9, “Backpropagation is the widely used and most successful algorithm for the training of a neural network of all time”. Accordingly, the claim does not include any additional elements that amount to an integration of the judicial exception into a practical application, nor to significantly more than the judicial exception. The claim is not patent eligible. Regarding claim 5, the rejection of claim 1 is further incorporated, and further, the claim recites: “randomly replacing at least one prevalent weight by a minority weight for one or more layers of the BNN”. This limitation is a continuation of the mathematical concept abstract idea of the parent claim. The claim does not include any additional elements that amount to an integration of the judicial exception into a practical application, nor to significantly more than the judicial exception. The claim is not patent eligible. Regarding claim 7, the rejection of claim 1 is further incorporated, and further, the claim recites: “increase the backpropagation gradient for a given layer by a value that is proportional to loss of information entropy in a following layer of the BNN”. This limitation recites additional mathematical concepts in addition to the judicial exception identified in the rejection of claim 1 and claim 6, thus recites a judicial exception. The claim does not include any additional elements that amount to an integration of the judicial exception into a practical application, nor to significantly more than the judicial exception. The claim is not patent eligible. Regarding claim 8, the rejection of claim 1 is further incorporated, and further, the claim recites: “determining one or more weight distributions for one or more layers and/or filters of the BNN, or determining the weight distribution for the entire BNN”. This limitation recites additional mathematical concepts, namely mathematical calculations, in addition to the judicial exception identified in the rejection of claim 1. Further, the claim recites: “determining the information entropy based on each determined weight distribution”. This limitation recites additional mathematical concepts, namely mathematical calculations, in addition to the judicial exception identified in the rejection of claim 1. Further, the claim recites: “appending a cost function, used for training the BNN, with a penalty term based on the one or more determined information entropies”. This limitation recites additional mathematical concepts, namely mathematical formulas/relationships, in addition to the judicial exception identified in the rejection of claim 1. Thus, the claim recites a judicial exception. The claim does not include any additional elements that amount to an integration of the judicial exception into a practical application, nor to significantly more than the judicial exception. The claim is not patent eligible. Regarding claim 9, the rejection of claim 8 is further incorporated, and further, the claim recites: “determine an information loss based on the one or more determined information entropies”. This limitation recites additional mathematical concepts, namely mathematical calculations, in addition to the judicial exception identified in the rejection of claim 1, claim 6, claim 8. Further, the claim recites: “append the information loss as the penalty term to the cost function”. This limitation recites additional mathematical concepts, namely mathematical formulas, in addition to the judicial exception identified in the rejection of claim 1, claim 6, and claim 8. The claim does not include any additional elements that amount to an integration of the judicial exception into a practical application, nor to significantly more than the judicial exception. The claim is not patent eligible. Regarding claim 10, the rejection of claim 9 is further incorporated, and further, the claim recites: “determine the information loss with respect to a maximum information entropy of the one or more weight distributions, or with respect to a constant value”. This limitation recites additional mathematical concepts, namely mathematical calculations/relationships, in addition to the judicial exception identified in the rejection of claim 1, claim 6, claim 8, and claim 9. The claim does not include any additional element that amount to an integration of the judicial exception into a practical application, nor to significantly more than the judicial exception. The claim is not patent eligible. Regarding claim 11: Step 1 Statutory Category: Claim 11 is directed to a system, which falls within one of the four statutory categories. Step 2A Prong 1 Judicial exception: Claim 11 recites, in part, “changing the binary weights of the BNN using a backpropagation method…wherein changing the binary weights increases or minimizes decrease of an information entropy of a weight distribution of the binary weights of the BNN”, “determining a weight distribution for each of a plurality of layers of the BNN”, and “determining an information entropy based on the determined weight distribution for each of the plurality of layers of the BNN”. These limitations are processes that, under the broadest reasonable interpretation covers the recitation of mathematical calculations, and mathematical relationships which fall within the “Mathematical concepts” grouping of abstract ideas, See MPEP § 2106.04(a)(2)(I)(C). Further, the claim recites: “increasing a backpropagation gradient for each of the plurality of layers, for which the information entropy is determined below a threshold value”. This limitation, under the broadest reasonable interpretation, covers the recitation of a mathematical relationship, as directed to “a mathematical relationship is a relationship between variables or numbers. A mathematical relationship may be expressed in words or using mathematical symbols”. See MPEP §2106.04(a)(2)(I)(A). Accordingly, the claim recites an abstract idea. Step 2A Prong 2 Integration into a practical application: This judicial exception is not integrated into a practical application. In particular, the claim recites the additional elements – “obtaining binary weights of a binary neural network (BNN) to be trained”, which is discussed in paragraph 0052 of applicant’s specification, “The device 100 is configured to obtain binary weights 102 of the BNN 101, e.g. to receive them from a training unit, or to determine them based on analyzing the BNN 101”. This element is recited at a high level of generality such that it amounts to mere data gathering. It is necessary to acquire the data in order to use the recited judicial exception. Therefore, the additional limitation is insignificant extra-solution activity to the judicial exception. Alternatively, determining them based on analyzing the BNN, covers performance of the limitation in the mind or pen and paper which falls under the “Mental Processes” grouping of abstract ideas, see MPEP § 2106.04(a)(2)(III). Further, the claim recites: “a non-transitory machine-readable storage medium having instructions stored therein”, “a processor”, and “wherein the BNN is configured to operate within a memory”. These elements are recited at a high level of generality such that they amount to no more than mere instructions to apply the exception using a generic computer component. Further, the claim recites: “such that information capacity is increased, accuracy is improved, and overfitting is reduced”. This limitation is an additional element that generally links the use of the judicial exception to a particular technological environment or field of use. See MPEP §2106.05(h). Further, the claim recites: “classify data objects by using the trained BNN, including image recognition, natural language processing, or trajectory prediction of autonomous driving vehicles”. This limitation is an additional element that that amounts to adding insignificant extra-solution activity to the judicial exception. See MPEP §2106.05(g). Step 2B Significantly more: The claim does not include additional elements that are sufficient to amount to significantly more than the judicial exception. As discussed above with respect to integration of the abstract idea into a practical application, the additional elements “a non-transitory machine-readable storage medium having instructions stored therein”, “a processor”, and “wherein the BNN is configured to operate within a memory” amount to adding the words “apply it” (or an equivalent) with the judicial exception, or mere instructions to implement an abstract idea on a computer, or merely uses a computer in its ordinary capacity as a tool to perform an existing process. Elements that merely amount to adding the words “apply it” (or an equivalent) with the judicial exception, or mere instructions to implement an abstract idea on a computer, or merely uses a computer in its ordinary capacity as a tool to perform an existing process cannot provide an inventive concept. Further, the additional element “obtaining binary weights of a binary neural network (BNN) to be trained” is insignificant extra-solution activity to the judicial exception and is directed to receiving or transmitting data over a network which courts have recognized as well-understood, routine, and conventional when they are claimed in a generic manner, see MPEP §2106.05(d)(II). Further, the additional element “such that information capacity is increased, accuracy is improved, and overfitting is reduced” generally links the use of the judicial exception to a particular technological environment or field of use. Elements that merely generally link the use of the judicial exception to a particular technological environment or field of use cannot provide an inventive concept. Further, the additional element “classify data objects by using the trained BNN, including image recognition, natural language processing, or trajectory prediction of autonomous driving vehicles” is an additional element that amounts to adding insignificant extra-solution activity to the judicial exception. Furthermore, the additional element is well‐understood, routine, and conventional as taught by activity is supported under Berkheimer Option 2, Keller et al., U.S. Patent Application Publication No. 20190294972, Paragraph 0003, Lines 1-5, “Artificial neural networks (ANNs) are commonly used computing systems that address a wide variety of tasks, such as classification, image recognition, regression, function approximation, samples of data according to a learned distribution, etc.”. See MPEP § 2106.05(d). The claim is not patent eligible. Regarding claim 12: The rejection of claim 11 is further incorporated, and further, the claim recites: “determining one or more weight distributions for one or more layers and/or filters of the BNN, or determining the weight distribution for the entire BNN”. This limitation recites additional mathematical concepts, namely mathematical calculations, in addition to the judicial exception identified in the rejection of the parent claim. Further, the claim recites: “determining the information entropy based on each determined weight distribution”. This limitation recites additional mathematical concepts, namely mathematical calculations, in addition to the judicial exception identified in the rejection of the parent claim. Further, the claim recites: “appending a cost function, used for training the BNN, with a penalty term based on the one or more determined information entropies”. This limitation recites additional mathematical concepts, namely mathematical formulas/relationships, in addition to the judicial exception identified in the rejection of the parent claim. Further, the claim recites: “change the binary weights of the BNN by at least one of: randomly replacing at least one prevalent weight by a minority weight, determining the weight distribution of weights for each of the plurality of layers of the BNN, determining, per layer of the plurality of layers, the information entropy based on the determined weight distribution, or increasing a backpropagation gradient for each layer, for which the information entropy is determined below a certain threshold value”. This limitation recites mathematical concepts in addition to those identified in the rejection of the parent claim. Thus, the claim recites a judicial exception. The claim does not include any additional elements that amount to an integration of the judicial exception into a practical application, nor to significantly more than the judicial exception. The claim is not patent eligible. Regarding claim 13: The rejection of claim 12 is further incorporated, and further, the claim recites: “providing a prediction result based on the training data produced by the BNN”. This limitation recites mathematical concepts in addition to the judicial exception identified in the rejection of claims 11 and 12, thus recites a judicial exception. Further, the claim recites the additional element of “a training device”. This element in the claim is recited at a high level of generality such that it amounts to no more than mere instructions to apply the exception using a generic computer component. Mere instructions to apply an exception using a generic computer component cannot provide an inventive concept. The claim further recites: providing the BNN to a training device, receiving from the training device, and storing at least one of the BNN, training data, or the trained data. These limitations are claimed at a high level of generality and amount to mere data gathering and as such are additional elements that amount to adding insignificant extra-solution activity to the judicial exception. See MPEP §2106.05(g). Further, the elements that amount to mere data gathering are directed to receiving or transmitting data over a network which the courts have recognized as well-understood, routine, and conventional when they are claimed in a generic manner, See MPEP § 2106.05(d)(II). The claim is not patent eligible. Regarding claim 14: Step 1 Statutory Category: Claim 1 is directed to a method, which falls within one of the four statutory categories. Step 2A Prong 1 Judicial exception: Claim 14 recites, in part, “changing… the binary weights of the BNN using a backpropagation method…wherein changing the binary weights increasing or minimizing decrease of an information entropy of a weight distribution of the binary weights of the BNN”, “determining…a weight distribution for each of a plurality of layers of the BNN”, and “determining…an information entropy based on the determined weight distribution for each of the plurality of layers of the BNN”. These limitations are processes that, under the broadest reasonable interpretation covers the recitation of mathematical calculations, and mathematical relationships which fall within the “Mathematical concepts” grouping of abstract ideas, See MPEP § 2106.04(a)(2)(I)(C). Further, the claim recites: “increasing…a backpropagation gradient for each of the plurality of layers, for which the information entropy is determined below a threshold value”. This limitation, under the broadest reasonable interpretation, covers the recitation of a mathematical relationship, as directed to “a mathematical relationship is a relationship between variables or numbers. A mathematical relationship may be expressed in words or using mathematical symbols”. See MPEP §2106.04(a)(2)(I)(A). Accordingly, the claim recites an abstract idea. Step 2A Prong 2 Integration into a practical application: This judicial exception is not integrated into a practical application. In particular, the claim recites the additional element: “by a processor”. This limitation is an additional element that amounts to adding the words “apply it” (or an equivalent) with the judicial exception, or mere instructions to implement an abstract idea on a computer, or merely uses a computer in its ordinary capacity as a tool to perform an existing process. See MPEP §2106.05(f). Further, the claim recites the additional element: “obtaining…binary weights of a binary neural network (BNN) to be trained”, which is discussed in paragraph 0052 of applicant’s specification, “The device 100 is configured to obtain binary weights 102 of the BNN 101, e.g. to receive them from a training unit, or to determine them based on analyzing the BNN 101”. This element is recited at a high level of generality such that it amounts to mere data gathering. It is necessary to acquire the data in order to use the recited judicial exception. Therefore, the additional limitation is insignificant extra-solution activity to the judicial exception. Alternatively, determining them based on analyzing the BNN, covers performance of the limitation in the mind or pen and paper which falls under the “Mental Processes” grouping of abstract ideas, see MPEP § 2106.04(a)(2)(III). Further, the claim recites: “such that information capacity is increased, accuracy is improved, and overfitting is reduced”. This limitation is an additional element that generally links the use of the judicial exception to a particular technological environment or field of use. See MPEP §2106.05(h). Further, the claim recites: “classify data objects by using the trained BNN, including image recognition, natural language processing, or trajectory prediction of autonomous driving vehicles”. This limitation is an additional element that amounts to adding insignificant extra-solution activity to the judicial exception. See MPEP §2106.05(g). Further, the claim recites: “wherein the BNN is configured to operate within a memory”. This limitation is an additional element that amounts to adding the words “apply it” (or an equivalent) with the judicial exception, or mere instructions to implement an abstract idea on a computer, or merely uses a computer in its ordinary capacity as a tool to perform an existing process. See MPEP §2106.05(f). Step 2B Significantly more: The claim does not include additional elements that are sufficient to amount to significantly more than the judicial exception. As discussed above with respect to integration of the abstract idea into a practical application, the additional element “by a processor” amounts to adding the words “apply it” (or an equivalent) with the judicial exception, or mere instructions to implement an abstract idea on a computer, or merely uses a computer in its ordinary capacity as a tool to perform an existing process. Elements that merely amount to adding the words “apply it” (or an equivalent) with the judicial exception, or mere instructions to implement an abstract idea on a computer, or merely uses a computer in its ordinary capacity as a tool to perform an existing process cannot provide an inventive concept. Further, the additional element “obtaining…binary weights of a binary neural network (BNN) to be trained” is insignificant extra-solution activity to the judicial exception and is directed to receiving or transmitting data over a network which courts have recognized as well-understood, routine, and conventional when they are claimed in a generic manner, see MPEP §2106.05(d)(II). Further, the additional element “such that information capacity is increased, accuracy is improved, and overfitting is reduced” generally links the use of the judicial exception to a particular technological environment or field of use. Elements that merely generally link the use of the judicial exception to a particular technological environment or field of use cannot provide an inventive concept. Further, the additional element, “classify data objects by using the trained BNN, including image recognition, natural language processing, or trajectory prediction of autonomous driving vehicles” is an additional element that amounts to adding insignificant extra-solution activity to the judicial exception. Furthermore, the additional element is well‐understood, routine, and conventional as taught by activity is supported under Berkheimer Option 2, Keller et al., U.S. Patent Application Publication No. 20190294972, Paragraph 0003, Lines 1-5, “Artificial neural networks (ANNs) are commonly used computing systems that address a wide variety of tasks, such as classification, image recognition, regression, function approximation, samples of data according to a learned distribution, etc.”. See MPEP § 2106.05(d). Further, the additional element “wherein the BNN is configured to operate within a memory” amounts to adding the words “apply it” (or an equivalent) with the judicial exception, or mere instructions to implement an abstract idea on a computer, or merely uses a computer in its ordinary capacity as a tool to perform an existing process. Elements that merely amount to adding the words “apply it” (or an equivalent) with the judicial exception, or mere instructions to implement an abstract idea on a computer, or merely uses a computer in its ordinary capacity as a tool to perform an existing process cannot provide an inventive concept. The claim is not patent eligible. Regarding claim 15: The rejection of claim 14 is further incorporated, and further, claim 15 is substantially similar to claim 2 respectively, and is rejected in the same manner and reasoning applying. Regarding claim 16: The rejection of claim 14 is further incorporated, and further, claim 16 is substantially similar to claim 3 respectively, and is rejected in the same manner and reasoning applying. Regarding claim 17: The rejection of claim 14 is further incorporated, and further, claim 17 is substantially similar to claim 4 respectively, and is rejected in the same manner and reasoning applying. Regarding claim 18: The rejection of claim 14 is further incorporated, and further, claim 18 is substantially similar to claim 5 respectively, and is rejected in the same manner and reasoning applying. Regarding claim 20: The rejection of claim 14 is further incorporated, and further, claim 20 is substantially similar to claim 7 respectively, and is rejected in the same manner and reasoning applying. Allowable Subject Matter Claims 1-5, 7-18, and 20 have only been rejected under 35 U.S.C. 101. A complete prior art search has been performed for these claims; however, the search did not uncover any prior art that fairly teach or suggest the features in these claims. Specifically, independent claims 1, 11, and 14 are considered allowable over the prior art since when reading the claims in light of the specification, as per MPEP 2111.01, none of the references of record either alone or in combination fairly disclose or suggest the combination of limitations specified in the claims, including at least: “determining an information entropy based on the determined weight distribution for each of the plurality of layers of the BNN, and increasing a backpropagation gradient for each of the plurality of layers, for which an information entropy is determined below a certain threshold value” The closest prior art of record includes: Pertinent art (BERETA, Michał. Entropy-based regularization of AdaBoost. Computer Assisted Methods in Engineering and Science, [S.l.], v. 24, n. 2, p. 89–100, dec. 2017. ISSN 2956-5839. Available at: <https://cames.ippt.pan.pl/index.php/cames/article/view/206>) discloses training classifiers based on weight distributions, and using information entropy as the regularization term (Berta, Page 3, section 2, lines 4-5, “In general, the final strong classifier is constructed step by step, by learning a new weak classifier in each iteration based on the current weight distribution of the training examples” Berta, Page 5, section 3, Paragraph 3, line 1, “The motivation to use the entropy as the regularization term”) but does not specifically disclose increasing backpropagation gradients for layers which an information entropy is below a certain threshold. When taken as a whole, the dependent claims have been found allowable over the prior art for at least the above features recited in the independent claims upon which they depend. Response to Arguments Applicant’s arguments regarding the 35 U.S.C. 101 rejections of the claims have been fully considered but are unpersuasive. Applicant first argues, on page 7, second to final paragraph of the response, that the claims are not directed to a mathematical concept. Examiner respectfully disagrees. Applicant specifically points to “determining an information entropy based on the determined weight distribution for each of the plurality of layers of the BNN”. This limitation, under the broadest reasonable interpretation, and according to applicant’s specification, page 11, line 2, covers the recitation of mathematical concepts. Further, “increasing a backpropagation gradient for each of the plurality of layers, for which the information entropy is determined below a threshold value”, recites mathematical relationships as it requires determining which layers’ information entropy is below a threshold value. Applicant next argues, on page 9 of the response, that in view of the foregoing amendments, amended claim 1 amounts to adding significant extra-solution activity to the judicial exception. Examiner respectfully disagrees. The newly added limitation “classify data objects by using the trained BNN, including image recognition, natural language processing, or trajectory prediction of autonomous driving vehicles” amounts to adding insignificant extra-solution activity to the judicial exception and is considered well‐understood, routine, and conventional as taught by activity is supported under Berkheimer Option 2. For an updated in-depth analysis, see the updated 35 U.S.C. 101 rejection above. Applicant's arguments regarding the remainder of the claims rely upon the arguments asserted with respect to the independent claims, and are thus unpersuasive. Conclusion Applicant's amendment necessitated the new ground(s) of rejection presented in this Office action. Accordingly, THIS ACTION IS MADE FINAL. See MPEP § 706.07(a). Applicant is reminded of the extension of time policy as set forth in 37 CFR 1.136(a). A shortened statutory period for reply to this final action is set to expire THREE MONTHS from the mailing date of this action. In the event a first reply is filed within TWO MONTHS of the mailing date of this final action and the advisory action is not mailed until after the end of the THREE-MONTH shortened statutory period, then the shortened statutory period will expire on the date the advisory action is mailed, and any nonprovisional extension fee (37 CFR 1.17(a)) pursuant to 37 CFR 1.136(a) will be calculated from the mailing date of the advisory action. In no event, however, will the statutory period for reply expire later than SIX MONTHS from the mailing date of this final action. Any inquiry concerning this communication or earlier communications from the examiner should be directed to MOLLY CLARKE SIPPEL whose telephone number is (571)272-3270. The examiner can normally be reached Monday - Friday, 7:30 a.m. - 4:30 p.m. ET.. Examiner interviews are available via telephone, in-person, and video conferencing using a USPTO supplied web-based collaboration tool. To schedule an interview, applicant is encouraged to use the USPTO Automated Interview Request (AIR) at http://www.uspto.gov/interviewpractice. If attempts to reach the examiner by telephone are unsuccessful, the examiner’s supervisor, Kakali Chaki can be reached at (571)272-3719. The fax phone number for the organization where this application or proceeding is assigned is 571-273-8300. Information regarding the status of published or unpublished applications may be obtained from Patent Center. Unpublished application information in Patent Center is available to registered users. To file and manage patent submissions in Patent Center, visit: https://patentcenter.uspto.gov. Visit https://www.uspto.gov/patents/apply/patent-center for more information about Patent Center and https://www.uspto.gov/patents/docx for information about filing in DOCX format. For additional questions, contact the Electronic Business Center (EBC) at 866-217-9197 (toll-free). If you would like assistance from a USPTO Customer Service Representative, call 800-786-9199 (IN USA OR CANADA) or 571-272-1000. /M.C.S./ Examiner, Art Unit 2122 /KAKALI CHAKI/Supervisory Patent Examiner, Art Unit 2122
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Prosecution Timeline

Show 7 earlier events
Aug 13, 2025
Response Filed
Oct 01, 2025
Final Rejection mailed — §101
Dec 05, 2025
Response after Non-Final Action
Jan 30, 2026
Request for Continued Examination
Feb 09, 2026
Response after Non-Final Action
Feb 24, 2026
Non-Final Rejection mailed — §101
May 20, 2026
Response Filed
Jun 16, 2026
Final Rejection mailed — §101 (current)

Precedent Cases

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Study what changed to get past this examiner. Based on 5 most recent grants.

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Prosecution Projections

6-7
Expected OA Rounds
52%
Grant Probability
78%
With Interview (+26.1%)
3y 9m (~0m remaining)
Median Time to Grant
High
PTA Risk
Based on 23 resolved cases by this examiner. Grant probability derived from career allowance rate.

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