Prosecution Insights
Last updated: July 17, 2026
Application No. 18/620,667

ATTENTION BASED CONTEXT MODELLING FOR IMAGE AND VIDEO COMPRESSION

Non-Final OA §DP
Filed
Mar 28, 2024
Priority
Oct 20, 2021 — EU PCT/EP2021/079028 +1 more
Examiner
RAHAMAN, SHAHAN UR
Art Unit
2426
Tech Center
2400 — Computer Networks
Assignee
Huawei Technologies Co., Ltd.
OA Round
3 (Non-Final)
76%
Grant Probability
Favorable
3-4
OA Rounds
6m
Est. Remaining
89%
With Interview

Examiner Intelligence

Grants 76% — above average
76%
Career Allowance Rate
498 granted / 654 resolved
+18.1% vs TC avg
Moderate +13% lift
Without
With
+12.6%
Interview Lift
resolved cases with interview
Typical timeline
2y 10m
Avg Prosecution
35 currently pending
Career history
698
Total Applications
across all art units

Statute-Specific Performance

§101
0.9%
-39.1% vs TC avg
§103
74.4%
+34.4% vs TC avg
§102
2.6%
-37.4% vs TC avg
§112
2.3%
-37.7% vs TC avg
Black line = Tech Center average estimate • Based on career data from 654 resolved cases

Office Action

§DP
DETAILED ACTION The present application, filed on or after March 16, 2013, is being examined under the first inventor to file provisions of the AIA . 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and the fee set forth in 37 CFR 1.17(e) has been timely paid, the finality of the previous Office action has been withdrawn pursuant to 37 CFR 1.114.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 03/30/2026 has been entered. Following prior arts are considered pertinent to applicant's disclosure. CN113347422A (hereinafter CN422) Chen Tong et al , “End-to-End Learnt Image Compression via Non-Local Attention Optimization and Improved Context Modeling” IEEE TRANSACTIONS ON IMAGE PROCESSING, IEEE, USA, vol. 30, 19 February 2021 (2021-02-19), pages 3179-319” (hereinafter Chen) US 20230154055 A1 (hereinafter Besenbruch) Allowable Subject Matter Claims 1, 4, 6-7, 10-11, 13-30 are allowable if pending double patenting rejections are overcome. The claims are not obvious over any single or combination of prior arts found during search. Response to Remarks/Arguments Applicant’s arguments with respect claim rejection have been fully considered Re: Double Patenting rejection Applicant indicated as no claim have yet been allowed, it is respectfully submitted that no terminal disclaimer need be filed. Given all claims are allowable now, examiner expecting applicant would file terminal disclaimer now. Double Patenting The nonstatutory double patenting rejection is based on a judicially created doctrine grounded in public policy (a policy reflected in the statute) so as to prevent the unjustified or improper timewise extension of the “right to exclude” granted by a patent and to prevent possible harassment by multiple assignees. A nonstatutory double patenting rejection is appropriate where the claims at issue are not identical, but at least one examined application claim is not patentably distinct from the reference claim(s) because the examined application claim is either anticipated by, or would have been obvious over, the reference claim(s). See, e.g., In re Berg, 140 F.3d 1428, 46 USPQ2d 1226 (Fed. Cir. 1998); In re Goodman, 11 F.3d 1046, 29 USPQ2d 2010 (Fed. Cir. 1993); In re Longi, 759 F.2d 887, 225 USPQ 645 (Fed. Cir. 1985); In re Van Ornum, 686 F.2d 937, 214 USPQ 761 (CCPA 1982); In re Vogel, 422 F.2d 438, 164 USPQ 619 (CCPA 1970); and In re Thorington, 418 F.2d 528, 163 USPQ 644 (CCPA 1969). A timely filed terminal disclaimer in compliance with 37 CFR 1.321(c) or 1.321(d) may be used to overcome an actual or provisional rejection based on a nonstatutory double patenting ground provided the reference application or patent either is shown to be commonly owned with this application, or claims an invention made as a result of activities undertaken within the scope of a joint research agreement. A terminal disclaimer must be signed in compliance with 37 CFR 1.321(b). The USPTO internet Web site contains terminal disclaimer forms which may be used. Please visit http://www.uspto.gov/forms/. The filing date of the application will determine what form should be used. A web-based eTerminal Disclaimer may be filled out completely online using web-screens. An eTerminal Disclaimer that meets all requirements is auto-processed and approved immediately upon submission. For more information about eTerminal Disclaimers, refer to http://www.uspto.gov/patents/process/file/efs/guidance/eTD-info-I.jsp. Claims 1-30 are provisionally rejected on the ground of nonstatutory double patenting as being unpatentable over claims of US patent 12537980. Although the claims at issue are not identical, they are not patentably distinct from each other because the instant claims are taught by obvious combinations of patented claims. For instance, instant claim 30 is taught by patented claims 1-3. Other independent claims are obvious variations of claim 30 (as also indicated in applicant remarks) therefore they are also obvious over patented claims. Instant dependent claims are obvious variations and permutations of the patented claims. Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to Shahan Rahaman whose telephone number is (571)270-1438. The examiner can normally be reached on 7am - 3:30pm. If attempts to reach the examiner by telephone are unsuccessful, the examiner’s supervisor, Nasser Goodarzi can be reached at telephone number (571) 272-4195. The fax phone number for the organization where this application or proceeding is assigned is (571) 273-8300. Information regarding the status of an application may be obtained from Patent Center. Status information for published applications may be obtained from Patent Center. Status information for unpublished applications is available through Patent Center for authorized users only. Should you have questions about access to Patent Center, contact the Electronic Business Center (EBC) at 866-217-9197 (toll-free). 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) Form at https://www.uspto.gov/patents/uspto-automated- interview-request-air-form. /SHAHAN UR RAHAMAN/Primary Examiner, Art Unit 2426
Read full office action

Prosecution Timeline

Show 1 earlier event
Apr 23, 2024
Response after Non-Final Action
Sep 11, 2025
Non-Final Rejection mailed — §DP
Nov 25, 2025
Response Filed
Jan 28, 2026
Final Rejection mailed — §DP
Mar 16, 2026
Response after Non-Final Action
Mar 30, 2026
Request for Continued Examination
Apr 07, 2026
Response after Non-Final Action
Jun 22, 2026
Non-Final Rejection mailed — §DP (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12676002
PREMISES SECURITY SYSTEM WITH DYNAMIC RISK EVALUATION
3y 9m to grant Granted Jul 07, 2026
Patent 12676995
Neural Network with Approximated Activation Function
1y 9m to grant Granted Jul 07, 2026
Patent 12671828
ENCODING AND DECODING METHOD AND APPARATUS
2y 4m to grant Granted Jun 30, 2026
Patent 12657755
SYSTEMS AND METHODS FOR EXERCISE TRACKING
3y 1m to grant Granted Jun 16, 2026
Patent 12659495
METHOD AND APPARATUS FOR VIDEO CODING USING SEGMENTATION
2y 9m to grant Granted Jun 16, 2026
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
76%
Grant Probability
89%
With Interview (+12.6%)
2y 10m (~6m remaining)
Median Time to Grant
High
PTA Risk
Based on 654 resolved cases by this examiner. Grant probability derived from career allowance rate.

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