Prosecution Insights
Last updated: April 19, 2026
Application No. 18/428,393

ROBUST AUTOMATIC IMAGE AND VIDEO QUALITY ASSESSMENT

Non-Final OA §101
Filed
Jan 31, 2024
Examiner
WILBURN, MOLLY K
Art Unit
2666
Tech Center
2600 — Communications
Assignee
Google LLC
OA Round
1 (Non-Final)
90%
Grant Probability
Favorable
1-2
OA Rounds
2y 2m
To Grant
99%
With Interview

Examiner Intelligence

Grants 90% — above average
90%
Career Allow Rate
407 granted / 452 resolved
+28.0% vs TC avg
Moderate +9% lift
Without
With
+8.8%
Interview Lift
resolved cases with interview
Typical timeline
2y 2m
Avg Prosecution
16 currently pending
Career history
468
Total Applications
across all art units

Statute-Specific Performance

§101
15.9%
-24.1% vs TC avg
§103
32.2%
-7.8% vs TC avg
§102
30.6%
-9.4% vs TC avg
§112
9.3%
-30.7% vs TC avg
Black line = Tech Center average estimate • Based on career data from 452 resolved cases

Office Action

§101
DETAILED ACTION Claims 1-20 are currently pending. 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 . 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 1-20 are rejected under 35 U.S.C. 101 because the claimed invention is directed to the mathematical steps of training a machine learning model without significantly more. Regarding claim 1, under step 2A prong 1, the claim recites the mathematical limitations: obtaining a target image by upscaling a downscaled image obtained by downscaling the reference image; obtaining an adversarial image by upscaling an optimized distorted image obtained by distorting the downscaled image; obtaining, as a second parameter values, a result of subtracting a scaled gradient from the first parameter values, wherein the scaled gradient is a result of product of a defined learning rate value and a gradient of a loss function with respect to the first parameter values for the reference image, wherein the loss function is a maximum among: zero; and a result of adding a define hinge loss gap hyper-parameter value to a result of subtracting the first result value from the second result value; including the second parameter values in the machine learning model. Under step 2A prong 2, the claim recites additional limitations obtaining a trained image quality assessment machine learning model by training a machine learning model using first training data including a reference image, wherein the machine learning model includes: obtaining, from the machine learning model with first parameter values, a first result value for the target image relative to the reference image; obtaining from the machine learning model with the first parameter values, a second result value for the adversarial image relative to the reference image. This judicial exception is not integrated into a practical application because these limitations amount to data gathering steps. Under step 2B, The claim fails to recite any additional elements which would amount to significantly more than the abstract idea. Regarding claim 10, the claim follows the same logic as claim 1 above with additional elements of a non-transitory computer readable medium and a processor configured to execute instructions stored on the non-transitory computer readable medium. These amount to generic computer processing components and fail to remedy the abstract idea. Regarding claim 17, the claim follows the same logic as claim 1 above with additional elements of a non-transitory computer readable medium, comprising executable instructions that, when executed by a processor, facilitate performance operations. These amount to generic computer processing components and fail to remedy the abstract idea. Regarding claims 2, 11, and 18, the claims add additional mathematical steps for calculating an optimized perturbation. These fail to remedy the abstract idea of the independent claims. Regarding claims 3 and 12, the claims add additional mathematical steps for calculating an optimized perturbation. These fail to remedy the abstract idea of the independent claims. Regarding 4, 13, and 19the claims add additional mathematical steps for calculating an optimized perturbation. These fail to remedy the abstract idea of the independent claims. Regarding claim 5, the claim adds the limitation that subsequent to training the machine learning model is the trained image quality assessment machine learning model. This amount to data gathering and fails to remedy the abstract idea of the independent claim. Regarding claims 6, 14, and 20, the claim adds limitations that the machine learning model is a classification model, includes a backbone model, and subsequent to training the machine learning model is the trained image quality assessment machine learning model. These amount to data gathering and fails to remedy the abstract idea of the independent claims. Regarding claim 7, the claim adds a second iteration of the steps outlined in claim 1. The claim follows the same logic as claim 1 and therefore fails to remedy the abstract idea of claim 1. Regarding claims 8 and 15, the claims add limitations of a plurality of reference images. These amounts to data gathering and fails to remedy the abstract idea of the independent claims. Regarding claims 9 and 16, the claims add the limitation of reference videos. These amounts to data gathering and fails to remedy the abstract idea of the independent claims Allowable Subject Matter Claims 1-20 are not rejected under the prior art and would be in condition for allowance if the above rejection under 35 U.S.C. 101 were overcome. Regarding claim 1, neither the closest known prior art, nor any reasonable combination thereof, teaches: obtaining, as second parameter values, a result of subtracting a scaled gradient from the first parameter values, wherein the scaled gradient is a result of a product of a defined learning rate value and a gradient of a loss function with respect to the first parameter values for the reference image, wherein the loss function is a maximum among: zero; and a result of adding a defined hinge loss gap hyper-parameter value to a result of subtracting the first result value from the second result value; and including the second parameter values in the machine learning model. Claims 2-9 depend from claim 1 and would therefore also be allowed. Claims 10 and 17 would be allowed for similar reasons discussed above, claims 11-16 and 18-20 depend from claims 10 and 17 and would therefore also be allowable. Jiang (US 2022/0351403) teaches a GAN network which receives a downsampled image and outputs a distorted upscale image from the generator. See [0018]. However, Jiang fails to teach the parameter values as claimed. Ahn (US 2021/0142440) teaches the use of a hinge GAN loss to optimize the discriminator of a GAN. See [0499]. However Ahn fails to teach the parameters as claimed above. Conclusion The prior art made of record and not relied upon is considered pertinent to applicant’s disclosure. Refer to PTO-892, Notice of References Cited for a listing of analogous art. Any inquiry concerning this communication or earlier communications from the examiner should be directed to Molly K Wilburn whose telephone number is (571)272-3589. The examiner can normally be reached Monday-Friday 8am-4pm. 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, Emily Terrell can be reached at (571) 270-3717. 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. /Molly Wilburn/Primary Examiner, Art Unit 2666
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Prosecution Timeline

Jan 31, 2024
Application Filed
Feb 06, 2026
Non-Final Rejection — §101
Feb 26, 2026
Interview Requested
Mar 05, 2026
Examiner Interview Summary
Mar 05, 2026
Applicant Interview (Telephonic)

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

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Prosecution Projections

1-2
Expected OA Rounds
90%
Grant Probability
99%
With Interview (+8.8%)
2y 2m
Median Time to Grant
Low
PTA Risk
Based on 452 resolved cases by this examiner. Grant probability derived from career allow rate.

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