Prosecution Insights
Last updated: July 17, 2026
Application No. 18/622,282

METHOD FOR TRAINING A MEDICAL IMAGE CLASSIFICATION MODEL USING MULTI-FILTER AUTO-AUGMENTATION

Final Rejection §102§103
Filed
Mar 29, 2024
Priority
Mar 30, 2023 — RE 10-2023-0041881
Examiner
DHOOGE, DEVIN J
Art Unit
2677
Tech Center
2600 — Communications
Assignee
Knu-Industry Cooperation Foundation
OA Round
2 (Final)
71%
Grant Probability
Favorable
3-4
OA Rounds
10m
Est. Remaining
99%
With Interview

Examiner Intelligence

Grants 71% — above average
71%
Career Allowance Rate
62 granted / 87 resolved
+9.3% vs TC avg
Strong +32% interview lift
Without
With
+32.5%
Interview Lift
resolved cases with interview
Typical timeline
3y 2m
Avg Prosecution
27 currently pending
Career history
125
Total Applications
across all art units

Statute-Specific Performance

§101
0.7%
-39.3% vs TC avg
§103
83.3%
+43.3% vs TC avg
§102
16.0%
-24.0% vs TC avg
Black line = Tech Center average estimate • Based on career data from 87 resolved cases

Office Action

§102 §103
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 . Response to Amendment This communication is in response to the action filed on 04/03/2026. Claims 1 and 6 are currently amended. Claim 2 is canceled. Claims 1, and 3-6 are pending. Response to Arguments Applicant’s arguments and corresponding amendment filed on 04/03/2026 on pages 1-6, under REMARKS with respect to 35 U.S.C. 101 claim rejection to claim 6 has been fully considered and is persuasive. The rejection to the claim has been withdrawn. Applicant’s arguments filed on 04/03/2026 on pages 1-6, under REMARKS with respect to 35 U.S.C. 102 and 35 U.S.C. 103 have been fully considered but they are not persuasive. Regarding claim 1 applicants on pages 2-3 states that US 2019/0183366 A1 fails to disclose: PNG media_image1.png 99 680 media_image1.png Greyscale PNG media_image2.png 46 574 media_image2.png Greyscale PNG media_image3.png 29 446 media_image3.png Greyscale The examiner respectfully disagrees. The examiner would like to point out sections of primary reference of record US 2019/0183366 A1, MARVAST including those which related to all three-applicant points A, B, and C. To begin, applicant issue A, is discussed in MARVAST at relevant sections including but not limited to figures 1B, 1C, 2, and 3; and paragraphs [0011], [0016-0021], [0038]. Clearly, directly disclosed automatic extraction of echocardiograph measurements and corresponding automatic augmentation of the data onto the images. Next, applicant issue B, is discussed in MARVAST at relevant sections including but not limited to figure 2; and paragraphs [0036-0038], [0045] which clearly shows at least two steps of filtering which comprises “multi-filtering. These steps include but are not limited to at paragraph [0037] it is stated classification component 130 and mode recognition component 120 each perform a classification (filtering) step on the mode and view point of the medical images. Finally, applicant issue C, is discussed in MARVAST at relevant sections including but not limited to figure 2; and paragraphs [0012], [0019-0021], [0036-0038], [0063-0075]. Which clearly lays out by an example a clear set of sequential steps and operations which are taken to get the extracted image features augmented onto the updated resultant output images. Please see full rejection to the claims below. Information Disclosure Statement The information disclosure statement (IDS) filed on 03/18/2026. Claim Rejections - 35 USC § 102 In the event the determination of the status of the application as subject to AIA 35 U.S.C. 102 and 103 (or as subject to pre-AIA 35 U.S.C. 102 and 103) is incorrect, any correction of the statutory basis (i.e., changing from AIA to pre-AIA ) for the rejection will not be considered a new ground of rejection if the prior art relied upon, and the rationale supporting the rejection, would be the same under either status. The following is a quotation of the appropriate paragraphs of 35 U.S.C. 102 that form the basis for the rejections under this section made in this Office action: A person shall be entitled to a patent unless – (a)(1) the claimed invention was patented, described in a printed publication, or in public use, on sale, or otherwise available to the public before the effective filing date of the claimed invention. (a)(2) the claimed invention was described in a patent issued under section 151, or in an application for patent published or deemed published under section 122(b), in which the patent or application, as the case may be, names another inventor and was effectively filed before the effective filing date of the claimed invention. Claims 1, and 4-6 are rejected under 35 § U.S.C. 102(a)(1) as being anticipated by US 2019/0183366 A1 to DEHGHAN MARVAST et al. (hereinafter “MARVAST”). As per claim 1, MARVAST discloses a method for training a medical image classification model using a computing device (a system and method for using and training of a medical image classification model wherein the model is based on plurality of neural networks wherein the described models are run and executed on a computer comprising computing components and trains said models using a training method; abstract; figs 1A-1C, and 3-4; paragraphs [0005], [0018-0021]), the method comprising: training, by using a training dataset including raw medical image data (training using input training data and the input training data is a medical image data set of raw image data; abstract; figs 1A-1C, and 2; paragraph [0072]), a plurality of first neural network models to classify medical image data into a predetermined class (training components 120-180 implementing machine learning/deep learning mechanisms, which are neural networks, trained using aforementioned raw images in a training medical image dataset as provided in corpus 240 the neural networks making up the cognitive system 200 after training comprise triage cognitive logic 232 that performs triage support operations by classifying medical images of patients and ranking the severity of the medical conditions (predetermined classes of severity); fig 2; paragraph [0072], [0077]), wherein the plurality of first neural network models have different neural network model structures (the provided echocardiograph extraction component is provided to comprise CNNs trained to extract specific image features and would be provided to include different CNNs adapted for extraction of different features and are trained using training data and training logic 180; figs 1A-2, and 4; paragraphs [0019-0021], [0034], [0037-0040], [0070-0072]); auto-augmenting the raw medical image data to generate medical image augmentation data (the features of the raw echocardiogram medical images are extracted by the automated echocardiograph measurement extraction system 100 based on the learned associations of medical image and using medical image viewer 230 automatically augments the image renderings of the medical images with additional emphasis on features or of interest by for example highlighting abnormalities; fig 2; paragraphs [0070-0075]); sequentially filtering the medical image augmentation data by each of the plurality of first neural network models and selecting, as effective augmentation data, only medical image augmentation data that have a class probability equal to or greater than a predetermined criterion in each of the plurality of first neural network models (the computing system performs steps in order (sequentially) in order to filter the medical heart imaging data in order to determine which medical images are complete in order to reduce probability of a misclassification due to incomplete measurements and inputting only images verified by the neural networks as useful for training using the automated measurement extraction engine to perform additional operations for advising medical personnel which types of images needed in order to complete a echocardiography imaging study and is adapted to inform the technician when the echocardiography medical imaging study has been completed, i.e. all necessary measurements needed for the particular study have been obtained from the images captured and the data needed to perform classification using component 130 and comparing it to as an example, there are 80 medical images generated from an echocardiography study of the patient, each may be evaluated via the CNN 160 of the illustrative embodiments to identify corresponding measurements from the learned best viewpoint images for the particular desired measurements, the measurements are compared to criteria, which are present in predefined rules, medical knowledge sources ingested by the cognitive system 190, medical guidelines, and the like, to identify where abnormalities may be present in the classified images; fig 2, 4; paragraphs [0018-0021], [0024], [0036], [0053-0056], [0068-0072], [0075], [0093]); and training, by using a training dataset including the effective augmentation data and the raw medical image data, a second neural network model to classify medical image data into a predetermined class (component 130 which is a deep learning neural network trained using the augmented annotated medical images, further deep learning viewpoint classification component 130 is trained using medical images annotated or labeled by a specialist in a training phase with the particular viewpoint information so that the trained viewpoint classification component 130 is able to classify new medical images of various modes with regard to their viewpoint based on the similarity of the characteristics of the medical image to those upon which the training is performed; fig 2; paragraphs [0037], [0072]). As per claim 4, MARVAST discloses the method of claim 1, wherein the plurality of first neural network models and the second neural network models are deep neural networks “DNNs” (the neural networks used are deep learning neural networks; fig 2; paragraphs [0072-0073]). As per claim 5, MARVAST discloses a method for classifying a medical image (after training the cognitive system 190 comprising the trained neural networks for classification, performs a method of classifying medical images of patients and ranking the severity of the medical conditions of the patients at least partially based on the measurements generated by the automated echocardiograph measurement extraction system 100; fig 2; paragraphs [0037], [0055], [0070-0075]), the method comprising classifying medical image data into a predetermined class by using a second neural network model trained by the method for training the medical image classification model according to claim 1 (the method of classification occurs using a trained neural network component provided as deep learning viewpoint classification component 130 is trained using medical images annotated or labeled by a specialist in a training phase with the particular viewpoint information so that the trained viewpoint classification component 130 is able to classify new medical images of various modes with regard to their viewpoint (predetermined classes) based on the similarity of the characteristics of the medical image to those upon which the training is performed; fig 2; paragraphs [0037], [0072]). As per claim 6, MARVAST discloses a non-transitory computer-readable recording medium recording a program for executing the method for training the medical image classification model according to claim 1 (the system comprises a computer and comprises components including a processor and computer readable medium/memory to store instruction executable by said processor to perform the methods described; paragraphs [0006], [0024], [0026]). Claim Rejections - 35 USC § 103 In the event the determination of the status of the application as subject to AIA 35 U.S.C. 102 and 103 (or as subject to pre-AIA 35 U.S.C. 102 and 103) is incorrect, any correction of the statutory basis (i.e., changing from AIA to pre-AIA ) for the rejection will not be considered a new ground of rejection if the prior art relied upon, and the rationale supporting the rejection, would be the same under either status. The following is a quotation of 35 U.S.C. 103 which forms the basis for all obviousness rejections set forth in this Office action: A patent for a claimed invention may not be obtained, notwithstanding that the claimed invention is not identically disclosed as set forth in section 102, if the differences between the claimed invention and the prior art are such that the claimed invention as a whole would have been obvious before the effective filing date of the claimed invention to a person having ordinary skill in the art to which the claimed invention pertains. Patentability shall not be negated by the manner in which the invention was made. The factual inquiries for establishing a background for determining obviousness under 35 U.S.C. 103 are summarized as follows: 1. Determining the scope and contents of the prior art. 2. Ascertaining the differences between the prior art and the claims at issue. 3. Resolving the level of ordinary skill in the pertinent art. 4. Considering objective evidence present in the application indicating obviousness or non-obviousness. Claim 3 is rejected under 35 § U.S.C. 103 as being obvious over US 2019/0183366 A1 to DEHGHAN MARVAST et al. (hereinafter “MARVAST”) in view of US 2023/0097169 A1 to Dwivedi et al. (hereinafter “DWIVEDI”). As per claim 3, MARVAST discloses the method of claim 1. MARVAST fails to disclose wherein one of the plurality of first neural network models and the second neural network model have a same neural network model structure. DWIVEDI discloses wherein one of the plurality of first neural network models and the second neural network model have a same neural network model structure (wherein during training the reformatted first model 218 and second model 220, represented as one or more data structures, can be analyzed by the first processor 206 to identify at least one common feature, such as a common neural network architecture, common layers, such as nodes representing resolutions or features, and/or common connections, such as operations e.g., convolution operations, smoking operations or weights, in the reformatted first and second models; paragraph [0082]). It would have been obvious to a person of ordinary skill in the art, before the effective filing date of the claimed invention to modify MARVAST to have one of the plurality of first neural network models and the second neural network model have a same neural network model structure of DWIVEDI reference. The Suggestion/motivation for doing so would have been to aid model manager 222 in order to provide a common feature of the models for training purposes and management purposes as suggested by DWIVEDI paragraph [0082]. Further, one skilled in the art could have combined the elements as described above by known method with no change in their respective functions, and the combination would have yielded nothing more than predictable results. Therefore, it would have been obvious to combine DWIVEDI with MARVAST to obtain the invention as specified in claim 3. Conclusion THIS ACTION IS MADE FINAL. 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. Examiner's Note: Examiner has cited figures, and paragraphs in the references as applied to the claims above for the convenience of the applicant. Although the specified citations are representative of the teachings in the art and are applied to the specific limitations within the individual claim, other passages and figures may apply as well. It is respectfully requested for the applicant, in preparing the responses, to fully consider the references in entirety as potentially teaching all or part of the claimed invention, as well as the context of the passage as taught by the prior art or disclosed by the examiner. Examiner has also cited references in PTO892 but not relied on, which are relevant and pertinent to the applicant’s disclosure, and may also be reading (anticipatory/obvious) on the claims and claimed limitations. Applicant is advised to consider the references in preparing the response/amendments in-order to expedite the prosecution. Any inquiry concerning this communication or earlier communications from the examiner should be directed to DEVIN JACOB DHOOGE whose telephone number is (571) 270-0999. The examiner can normally be reached 7:30-5:00. 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, Andrew Bee can be reached on (571) 270-5183. 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. /Devin Dhooge/ USPTO Patent Examiner Art Unit 2677 /ANDREW W BEE/Supervisory Patent Examiner, Art Unit 2677
Read full office action

Prosecution Timeline

Mar 29, 2024
Application Filed
Feb 02, 2026
Non-Final Rejection mailed — §102, §103
Apr 03, 2026
Response Filed
Jun 11, 2026
Final Rejection mailed — §102, §103 (current)

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

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Prosecution Projections

3-4
Expected OA Rounds
71%
Grant Probability
99%
With Interview (+32.5%)
3y 2m (~10m remaining)
Median Time to Grant
Moderate
PTA Risk
Based on 87 resolved cases by this examiner. Grant probability derived from career allowance rate.

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