Office Action Predictor
Last updated: April 15, 2026
Application No. 18/192,243

COLUMN CLASSIFICATION MODEL

Non-Final OA §103
Filed
Mar 29, 2023
Examiner
NGUYEN, THU N
Art Unit
2154
Tech Center
2100 — Computer Architecture & Software
Assignee
Snowflake INC.
OA Round
3 (Non-Final)
72%
Grant Probability
Favorable
3-4
OA Rounds
3y 9m
To Grant
91%
With Interview

Examiner Intelligence

Grants 72% — above average
72%
Career Allow Rate
418 granted / 584 resolved
+16.6% vs TC avg
Strong +19% interview lift
Without
With
+19.4%
Interview Lift
resolved cases with interview
Typical timeline
3y 9m
Avg Prosecution
19 currently pending
Career history
603
Total Applications
across all art units

Statute-Specific Performance

§101
15.6%
-24.4% vs TC avg
§103
53.6%
+13.6% vs TC avg
§102
14.1%
-25.9% vs TC avg
§112
6.8%
-33.2% vs TC avg
Black line = Tech Center average estimate • Based on career data from 584 resolved cases

Office Action

§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 . DETAILED ACTION This responds to Applicant’s Arguments/Remarks filed 08/13/2025. Claims 1, 15, 17-20 have been amended. Claim 16 has been cancelled. Claims 1-15, 17-20 are now pending in this Application. Continued Examination Under 37 CFR 1.114 A request for continued examination under 37 CFR 1.114, including the fee set forth in 37 CFR 1.17(e), was filed in this application after final rejection. Since this application is eligible for continued examination under 37 CFR 1.114, and the fee set forth in 37 CFR 1.17(e) has been timely paid, the finality of the previous Office action has been withdrawn pursuant to 37 CFR 1.114. Applicant's submission filed on 8/13/2025 has been entered. Response to Arguments Applicant’s arguments with respect to claim(s) 1-15, 17-20 have been considered but are moot because the new ground of rejection does not rely on any reference applied in the prior rejection of record for any teaching or matter specifically challenged in the argument. 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. Claim(s) 1-15, 17-20 is/are rejected under 35 U.S.C. 103 as being unpatentable over Hudock et al (U.S. Pub No. 20230214586 A1), and in view of Prager (U.S. Patent No. 6,003,027 A1). As per claim 1, Hudock discloses a system comprising: at least one hardware processor; and at least one memory storing instructions that cause the at least one hardware processor to execute operations comprising (Par [0062, 0069-0070]): accessing a table associated with features of a column (Fig 8); retrieving a list of categories, each category in the list of categories being associated with a respective scoring model; for each category in the list of categories, applying a respective scoring model to the features of the column to generate a respective set of confidence values indicating a likelihood that the column belongs to a respective one of the categories (Par [0041-0044]); processing the respective sets of confidence values to select a target category from the list of categories (Par [0049] and claim 2); and associating the selected target category with the column (Par [0041, 0047-0049]). Hudock does not explicitly disclose each respective scoring model selected from a plurality of scoring models, each scoring model of the plurality of scoring models associated with a different category of the list of categories, each scoring model of the plurality of scoring models generating a confidence value comprising a set of likelihoods that the column belongs to the category of the respective scoring models; for an individual category, identifying a first set of data entries of the column that are associated with a first confidence value of belonging to the individual category and a second set of data entries of the column that are associated with a second confidence value of belonging to the individual category; computing a first ratio of a first quantity in the first set of data entries relative to a total number of entries in the column and a second ratio of a second quantity in the second set of data entries relative to a total number of entries in the column; processing the respective sets of confidence values to select a target category from the list of categories based on the first ratio and the second ratio. However, Prager discloses each respective scoring model selected from a plurality of scoring models, each scoring model of the plurality of scoring models associated with a different category of the list of categories, each scoring model of the plurality of scoring models generating a confidence value comprising a set of likelihoods that the column belongs to the category of the respective scoring models (Fig 4a-4b and Col 7 lines 47-67 through col 8 lines 1-67); for an individual category, identifying a first set of data entries of the column that are associated with a first confidence value of belonging to the individual category and a second set of data entries of the column that are associated with a second confidence value of belonging to the individual category (col 8 lines 15-51); computing a first ratio of a first quantity in the first set of data entries relative to a total number of entries in the column and a second ratio of a second quantity in the second set of data entries relative to a total number of entries in the column; processing the respective sets of confidence values to select a target category from the list of categories based on the first ratio and the second ratio (Col 7 lines 47-67 through col 8 lines 1-67). It would have been obvious to one of ordinary skill in the art before the effective filling date of the claimed invention was made to incorporate the features as disclosed in Prager into the teaching of Hudock in order to improve the system (col 8 lines 50-51). As per claim 2, Hudock discloses the system of claim 1, wherein the features are derived from data entries of the column (par [0047-0049]). As per claim 3, Hudock discloses the system of claim 2, wherein the features are derived from a column name (fig 8). As per claim 4, Hudock discloses the system of claim 1, the operations further comprising: for a first category in the list of categories, applying a first scoring model to the features in the column to generate a first set of confidence values indicating a likelihood that the column belongs to the first category (Par [0049] and claim 2). As per claim 5, Hudock discloses the system of claim 4, the operations further comprising: for a second category in the list of categories, applying a second scoring model to the features in the column to generate a second set of confidence values indicating a likelihood that the column belongs to the second category; and processing the first set of confidence values and the second set of confidence values to select the target category from the first and second categories (Par [0049-0051] and claim 2). As per claim 6, Hudock discloses the system of claim 1, wherein each confidence value in the respective sets of confidence values is associated with a different score (Par [0049-0051]). As per claim 7, Hudock discloses the system of claim 1, wherein the scoring model generates a distribution of scores for the features of the column as belonging to a first category in the list of categories as a first set of confidence values, the distribution of scores comprising a first percentage of the features of the column having a first likelihood of belonging to the first category, a second percentage of the features of the column having a second likelihood of belonging to the first category, and a third percentage of the features of the column having a third likelihood of belonging to the first category (Par [0049-0051] and claim 2). As per claim 8, Hudock discloses the system of claim 7, wherein the first likelihood is greater than the second likelihood; and wherein the second likelihood is greater than the third likelihood (Par [0008]). As per claim 9, Hudock discloses the system of claim 8, the operations further comprising: determining that the first percentage is greater than a threshold value; and in response to determining that the first percentage is greater than the threshold value, generating an aggregate confidence value that the column belongs to the first category as a sum of a first portion of confidence values of the first set of confidence values associated with the first likelihood and a second portion of confidence values of the first set of confidence values associated with the second likelihood (par [0011] and claim 5-6). As per claim 10, Hudock discloses the system of claim 9, the operations further comprising: determining that a first feature of the column of features comprises a column name; obtaining a confidence value from the first set of confidence value corresponding to the first feature comprising the column name; and selectively increasing the aggregate confidence value by a first amount or a second amount based on the confidence value of the first feature comprising the column name, the second amount being smaller than the first amount (Par [0053]). As per claim 11, Hudock discloses the system of claim 10, the operations further comprising: determining that the confidence value corresponds to the first likelihood; and in response to determining that the confidence value of the first feature comprising the column name corresponds to the first likelihood, increasing the aggregate confidence value by the first amount (Par [0049-0051]). As per claim 12, Hudock discloses the system of claim 10, the operations further comprising: determining that the confidence value corresponds to the second likelihood; and in response to determining that the confidence value of the first feature comprising the column name corresponds to the second likelihood, increasing the aggregate confidence value by the second amount (Par [0008]). As per claim 13, Hudock discloses the system of claim 9, wherein the aggregate confidence value is a first aggregate confidence value, the operations further comprising: generating a second aggregate confidence value that the column belongs to a second category based on a second set of confidence values associated with the features of the column; comparing the first aggregate confidence value with the second aggregate confidence value; and selecting the target category from the first and second categories in response to comparing the first aggregate confidence value with the second aggregate confidence value (par [0043]). As per claim 14, Prager discloses the system of claim 13, the operations further comprising: determining that the second aggregate confidence value is greater than the first aggregate confidence value in response to comparing the first aggregate confidence value with the second aggregate confidence value; selecting the second category as the target category in response to determining that the second aggregate confidence value is greater than the first aggregate confidence value (Colu,m 3 lines 59-67, col 8 lines 23-35). As per claim 15, Hudock discloses the system of claim 1, wherein the plurality of scoring models comprise a plurality of machine learning models (par [0072]). As per claim 17, Hudock discloses the system of claim 1, wherein the plurality of scoring models comprise a plurality of predefined lists of attributes (Par [0057]). As per claim 18, Hudock discloses the system of claim 17, wherein the plurality of scorning models comprise one or more machine learning models and one or more predefined lists of attributes (par [0057]). As per claim 19, Hudock discloses a method comprising: accessing, by at least one hardware processor, a table associated with features of a column (Par [0069-0070] and fig 8); retrieving a list of categories, each category in the list of categories being associated with a different scoring model; for each category in the list of categories, applying a respective scoring model to the features of the column to generate a respective set of confidence values indicating a likelihood that the column belongs to a respective one of the categories (Par [0041-0044]); processing the respective sets of confidence values to select a target category from the list of categories (Par [0049] and claim 2); and associating the selected target category with the column (Par [0041, 0047-0049]). Hudock does not explicitly disclose each respective scoring model selected from a plurality of scoring models, each scoring model of the plurality of scoring models associated with a different category of the list of categories, each scoring model of the plurality of scoring models generating a confidence value comprising a set of likelihoods that the column belongs to the category of the respective scoring models; for an individual category, identifying a first set of data entries of the column that are associated with a first confidence value of belonging to the individual category and a second set of data entries of the column that are associated with a second confidence value of belonging to the individual category; computing a first ratio of a first quantity in the first set of data entries relative to a total number of entries in the column and a second ratio of a second quantity in the second set of data entries relative to a total number of entries in the column; processing the respective sets of confidence values to select a target category from the list of categories based on the first ratio and the second ratio. However, Prager discloses each respective scoring model selected from a plurality of scoring models, each scoring model of the plurality of scoring models associated with a different category of the list of categories, each scoring model of the plurality of scoring models generating a confidence value comprising a set of likelihoods that the column belongs to the category of the respective scoring models (Fig 4a-4b and Col 7 lines 47-67 through col 8 lines 1-67); for an individual category, identifying a first set of data entries of the column that are associated with a first confidence value of belonging to the individual category and a second set of data entries of the column that are associated with a second confidence value of belonging to the individual category (col 8 lines 15-51); computing a first ratio of a first quantity in the first set of data entries relative to a total number of entries in the column and a second ratio of a second quantity in the second set of data entries relative to a total number of entries in the column; processing the respective sets of confidence values to select a target category from the list of categories based on the first ratio and the second ratio (Col 7 lines 47-67 through col 8 lines 1-67). It would have been obvious to one of ordinary skill in the art before the effective filling date of the claimed invention was made to incorporate the features as disclosed in Prager into the teaching of Hudock in order to improve the system (col 8 lines 50-51). As per claim 20, Hudock discloses a computer-storage medium comprising instructions that, when executed by a processor of a machine, configure the machine to perform operations comprising: accessing a table associated with features of a column (Fig 8); retrieving a list of categories, each category in the list of categories being associated with a different scoring model; for each category in the list of categories, applying a respective scoring model to the features of the column to generate a respective set of confidence values indicating a likelihood that the column belongs to a respective one of the categories (Par [0041-0044]); processing the respective sets of confidence values to select a target category from the list of categories (Par [0049] and claim 2); and associating the selected target category with the column (Par [0041, 0047-0049]). Hudock does not explicitly disclose each respective scoring model selected from a plurality of scoring models, each scoring model of the plurality of scoring models associated with a different category of the list of categories, each scoring model of the plurality of scoring models generating a confidence value comprising a set of likelihoods that the column belongs to the category of the respective scoring models; for an individual category, identifying a first set of data entries of the column that are associated with a first confidence value of belonging to the individual category and a second set of data entries of the column that are associated with a second confidence value of belonging to the individual category; computing a first ratio of a first quantity in the first set of data entries relative to a total number of entries in the column and a second ratio of a second quantity in the second set of data entries relative to a total number of entries in the column; processing the respective sets of confidence values to select a target category from the list of categories based on the first ratio and the second ratio. However, Prager discloses each respective scoring model selected from a plurality of scoring models, each scoring model of the plurality of scoring models associated with a different category of the list of categories, each scoring model of the plurality of scoring models generating a confidence value comprising a set of likelihoods that the column belongs to the category of the respective scoring models (Fig 4a-4b and Col 7 lines 47-67 through col 8 lines 1-67); for an individual category, identifying a first set of data entries of the column that are associated with a first confidence value of belonging to the individual category and a second set of data entries of the column that are associated with a second confidence value of belonging to the individual category (col 8 lines 15-51); computing a first ratio of a first quantity in the first set of data entries relative to a total number of entries in the column and a second ratio of a second quantity in the second set of data entries relative to a total number of entries in the column; processing the respective sets of confidence values to select a target category from the list of categories based on the first ratio and the second ratio (Col 7 lines 47-67 through col 8 lines 1-67). It would have been obvious to one of ordinary skill in the art before the effective filling date of the claimed invention was made to incorporate the features as disclosed in Prager into the teaching of Hudock in order to improve the system (col 8 lines 50-51). Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to THU N NGUYEN whose telephone number is (571)270-1765. The examiner can normally be reached Monday to Friday from 9:30AM-6:00PM. 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, Hosain Alam can be reached on 571-272-3978. 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. September 16, 2025 /THU N NGUYEN/Examiner, Art Unit 2154
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Prosecution Timeline

Mar 29, 2023
Application Filed
Oct 18, 2024
Non-Final Rejection — §103
Jan 06, 2025
Response Filed
Apr 09, 2025
Final Rejection — §103
Jun 05, 2025
Response after Non-Final Action
Aug 13, 2025
Request for Continued Examination
Aug 20, 2025
Response after Non-Final Action
Sep 16, 2025
Non-Final Rejection — §103
Apr 04, 2026
Response after Non-Final Action

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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
72%
Grant Probability
91%
With Interview (+19.4%)
3y 9m
Median Time to Grant
High
PTA Risk
Based on 584 resolved cases by this examiner. Grant probability derived from career allow rate.

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