Prosecution Insights
Last updated: April 19, 2026
Application No. 19/025,004

CHROMA INTRA PREDICTION METHOD AND DEVICE

Non-Final OA §DP
Filed
Jan 16, 2025
Examiner
RAHMAN, MOHAMMAD J
Art Unit
2487
Tech Center
2400 — Computer Networks
Assignee
Guangdong OPPO Mobile Telecommunications Corp., Ltd.
OA Round
1 (Non-Final)
79%
Grant Probability
Favorable
1-2
OA Rounds
2y 5m
To Grant
90%
With Interview

Examiner Intelligence

Grants 79% — above average
79%
Career Allow Rate
685 granted / 868 resolved
+20.9% vs TC avg
Moderate +11% lift
Without
With
+10.7%
Interview Lift
resolved cases with interview
Typical timeline
2y 5m
Avg Prosecution
41 currently pending
Career history
909
Total Applications
across all art units

Statute-Specific Performance

§101
6.3%
-33.7% vs TC avg
§103
56.0%
+16.0% vs TC avg
§102
3.0%
-37.0% vs TC avg
§112
10.4%
-29.6% vs TC avg
Black line = Tech Center average estimate • Based on career data from 868 resolved cases

Office Action

§DP
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 office Action is in response to an application filed on 01/16/2025 is a CON of 18/493,496 10/24/2023 PAT 12231655, is a CON of 17/819,175 08/11/2022 PAT 11924439, is a CON of 17/361,625 06/29/2021 PAT 11451792, is a CON of PCT/CN2019/070148 01/02/2019, in which claims 1-12 are pending and are being examined. Information Disclosure Statement This information disclosure statement (IDS) submitted on 01/16/2025, and, 09/23/2025. The submission is in compliance with the provisions of 37 CFR 1.97 and 37 CFR 1.98. Accordingly, the information disclosure statement is being considered by the examiner. 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 conflicting claims 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); 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 nonstatutory double patenting provided the reference application or patent either is shown to be commonly owned with the examined application, or claims an invention made as a result of activities undertaken within the scope of a joint research agreement. See MPEP § 717.02 for applications subject to examination under the first inventor to file provisions of the AIA as explained in MPEP § 2159. See MPEP §§ 706.02(l)(1) - 706.02(l)(3) for applications not subject to examination under the first inventor to file provisions of the AIA . A terminal disclaimer must be signed in compliance with 37 CFR 1.321(b). The USPTO Internet website contains terminal disclaimer forms which may be used. Please visit www.uspto.gov/patent/patents-forms. The filing date of the application in which the form is filed determines what form (e.g., PTO/SB/25, PTO/SB/26, PTO/AIA /25, or PTO/AIA /26) 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 www.uspto.gov/patents/process/file/efs/guidance/eTD-info-I.jsp. Claims 1, 3, 5, 7, 9, 11 and similar dependent claims are rejected on the ground of nonstatutory double patenting as being unpatentable over claim 1 of Conflicting Patent PAT US 12,231,655 B2. Although the claims at issue are not identical, they are not patentably distinct from each other because the subject matter claimed in the instant application is anticipated by the Conflicting Patent and is covered by the Patent since the Patent and the application are claiming common subject matter, below is a list of limitations that perform the same function, however, different terminology may be used in both sets to describe the limitations, as follows, Claim 1 is used as an example to analyze the common subject matter: Conflicting Patent No. US 12,231,655 B2 Instant Application:-19/025,004 1. A chroma intra prediction method, applied to a decoder, the method comprising: parsing bitstream data corresponding to a current chroma block, and determining that a prediction mode corresponding to the current chroma block is a direct mode (DM); before determining a set of chroma prediction modes based on at least one modified candidate mode, acquiring a linear mode corresponding to the current chroma block from the bitstream data; determining an intra prediction mode of the current chroma block from the set of chroma prediction modes, wherein the set of chroma prediction modes comprises at least one of the DM, linear mode (LM), LM_T or LM_L, wherein when a luma prediction mode corresponding to the DM is a direct current (DC) mode or a planar mode, the set of chroma prediction modes comprises a diagonal angular mode with prediction direction index number 66, determining a reconstructed value of the current chroma block according to the intra prediction mode. 1. A chroma intra prediction method, applied to a decoder, the method comprising: determining a direct mode (DM) corresponding to a current chroma block; determining an intra prediction mode of the current chroma block from a set of chroma prediction modes, wherein the set of chroma prediction modes comprises at least one of the DM, linear mode (LM), LMT or LML, wherein when a luma prediction mode corresponding to the DM is a direct current (DC) mode or a planar mode, the set of chroma prediction modes comprises a diagonal angular mode with prediction direction index number 66, wherein the linear mode is acquired from a bitstream before determining the set of chroma prediction modes; and determining a reconstructed value of the current chroma block according to the intra prediction mode. As demonstrated, the claim of US patent US 12,231,655 B2 anticipate the features of the claim of instant application 19/025,004. A nonstatutory type (35 U.S.C. 101) double patenting rejection can be overcome by amending the conflicting claims so they are no longer coextensive in scope or filing of a terminal disclaimer. Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to MOHAMMAD J RAHMAN whose telephone number is (571)270-7190. The examiner can normally be reached Monday-Friday 9AM-5PM. 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, David Czekaj can be reached at (571) 272-7327. 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. /Mohammad J Rahman/Primary Examiner, Art Unit 2487
Read full office action

Prosecution Timeline

Jan 16, 2025
Application Filed
Jan 23, 2026
Non-Final Rejection — §DP (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12604001
SYSTEMS AND METHODS FOR BLOCK PARTITIONING AND INTERLEAVED CODING ORDER FOR MULTIVIEW VIDEO CODING
2y 5m to grant Granted Apr 14, 2026
Patent 12593050
SYSTEMS AND METHODS FOR MULTIPLE BIT RATE CONTENT ENCODING
2y 5m to grant Granted Mar 31, 2026
Patent 12593028
ENCODER WHICH GENERATES PREDICTION IMAGE TO BE USED TO ENCODE CURRENT BLOCK
2y 5m to grant Granted Mar 31, 2026
Patent 12587656
INTRA PREDICTION MODE DERIVATION-BASED INTRA PREDICTION METHOD AND DEVICE
2y 5m to grant Granted Mar 24, 2026
Patent 12587647
IMAGE DATA ENCODING/DECODING METHOD AND APPARATUS
2y 5m to grant Granted Mar 24, 2026
Study what changed to get past this examiner. Based on 5 most recent grants.

AI Strategy Recommendation

Get an AI-powered prosecution strategy using examiner precedents, rejection analysis, and claim mapping.
Powered by AI — typically takes 5-10 seconds

Prosecution Projections

1-2
Expected OA Rounds
79%
Grant Probability
90%
With Interview (+10.7%)
2y 5m
Median Time to Grant
Low
PTA Risk
Based on 868 resolved cases by this examiner. Grant probability derived from career allow rate.

Sign in with your work email

Enter your email to receive a magic link. No password needed.

Personal email addresses (Gmail, Yahoo, etc.) are not accepted.

Free tier: 3 strategy analyses per month