Prosecution Insights
Last updated: April 18, 2026
Application No. 18/470,210

DATA COMPRESSION METHOD AND APPARATUS

Final Rejection §112
Filed
Sep 19, 2023
Examiner
WONG, HUEN
Art Unit
2168
Tech Center
2100 — Computer Architecture & Software
Assignee
Huawei Technologies Co., Ltd.
OA Round
4 (Final)
59%
Grant Probability
Moderate
5-6
OA Rounds
4y 7m
To Grant
99%
With Interview

Examiner Intelligence

Grants 59% of resolved cases
59%
Career Allow Rate
216 granted / 366 resolved
+4.0% vs TC avg
Strong +45% interview lift
Without
With
+45.4%
Interview Lift
resolved cases with interview
Typical timeline
4y 7m
Avg Prosecution
37 currently pending
Career history
403
Total Applications
across all art units

Statute-Specific Performance

§101
4.2%
-35.8% vs TC avg
§103
52.2%
+12.2% vs TC avg
§102
20.1%
-19.9% vs TC avg
§112
18.5%
-21.5% vs TC avg
Black line = Tech Center average estimate • Based on career data from 366 resolved cases

Office Action

§112
DETAILED ACTION 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 . Claims 27-29 are newly added. Claims 1, 3-6, 8-11, 13-18, 20, 22 and 27-29 are presented for examination. The claims and only the claims form the metes and bounds of the invention. “Office personnel are to give claims their broadest reasonable interpretation in light of the supporting disclosure. In re Morris, 127 F.3d 1048, 1054-55, 44 USPQ2d 1023, 1027-28 (Fed. Cir. 1997). Limitations appearing in the specification but not recited in the claim are not read into the claim. In re Prater, 415 F.2d 1393, 1404-05, 162 USPQ 541, 550-551 (CCPA 1969)” (MPEP p 2100-8, c 2, I 45-48; p 2100-9, c 1, l 1-4). The Examiner has full latitude to interpret each claim in the broadest reasonable sense. The Examiner will reference prior art using terminology familiar to one of ordinary skill in the art. Such an approach is broad in concept and can be either explicit or implicit in meaning. Applicant’s remarks/amendment was filed on 22 December 2025. Claim Rejections - 35 USC § 112 The following is a quotation of the first paragraph of 35 U.S.C. 112(a): (a) IN GENERAL.—The specification shall contain a written description of the invention, and of the manner and process of making and using it, in such full, clear, concise, and exact terms as to enable any person skilled in the art to which it pertains, or with which it is most nearly connected, to make and use the same, and shall set forth the best mode contemplated by the inventor or joint inventor of carrying out the invention. The following is a quotation of the first paragraph of pre-AIA 35 U.S.C. 112: The specification shall contain a written description of the invention, and of the manner and process of making and using it, in such full, clear, concise, and exact terms as to enable any person skilled in the art to which it pertains, or with which it is most nearly connected, to make and use the same, and shall set forth the best mode contemplated by the inventor of carrying out his invention. Claims 1, 3-6, 8-11, 13-18, 20, 22 and 27-29 are rejected under 35 U.S.C. 112(a) or 35 U.S.C. 112 (pre-AIA ), first paragraph, as failing to comply with the written description requirement. The claim(s) contains subject matter which was not described in the specification in such a way as to reasonably convey to one skilled in the relevant art that the inventor or a joint inventor, or for applications subject to pre-AIA 35 U.S.C. 112, the inventor(s), at the time the application was filed, had possession of the claimed invention. Claims 1, 6 and 11 recite “performing compression based on the data blocks before the target data block not including the target data block”. Applicant’s original disclosure discloses: [0019] “… the terminal may perform the compression based on the data blocks before the currently predicted data block”, [0022] “… perform compression based on the data blocks before the currently predicted data block”, [0137] “… the compression unit 704 is further configured to perform compression based on the data blocks before the currently predicted data block”, Applicant’s disclosure, however, does not teach the recited limitation of “performing compression based on the data blocks before the target data block not including the target data block”. Claims 3-5, 8-10, 13-18, 20, 22 and 27-29 depend from claims 1, 6 and 11, and are rejected for the same reason(s) under 35 U.S.C. 112(b) or 35 U.S.C. 112 (pre-AIA ), second paragraph. The following is a quotation of 35 U.S.C. 112(b): (b) CONCLUSION.—The specification shall conclude with one or more claims particularly pointing out and distinctly claiming the subject matter which the inventor or a joint inventor regards as the invention. The following is a quotation of 35 U.S.C. 112 (pre-AIA ), second paragraph: The specification shall conclude with one or more claims particularly pointing out and distinctly claiming the subject matter which the applicant regards as his invention. Claims 1, 3-6, 8-11, 13-18, 20, 22 and 27-29 are rejected under 35 U.S.C. 112(b) or 35 U.S.C. 112 (pre-AIA ), second paragraph, as being indefinite for failing to particularly point out and distinctly claim the subject matter which the inventor or a joint inventor (or for applications subject to pre-AIA 35 U.S.C. 112, the applicant), regards as the invention. The instant independent claims recite “prior to compression, predicting a first compressed length of a sum of a target data block and data blocks before the target data block” and “performing compression based on the data blocks before the target data block not including the target data block, and based on determining that the first predicted compression length is greater than the length limit value, to obtain compressed data”. The claims require performing compression that is based on determining that the first predicted compression length is greater than the length limit value and the first predicted compression length is a sum of target data block and data blocks before the target data block. Therefore, the compression is actually based on data blocks before the target data block and including the target data block. Performing compression cannot be based on data blocks before the target data block and not including the target data block. Claims 3-5, 8-10, 13-18, 20, 22 and 27-29 depend from Claims 1, 6 and 11, and are similarly rejected under 35 U.S.C. 112(b) or 35 U.S.C. 112 (pre-AIA ). 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. Any inquiry concerning this communication or earlier communications from the Examiner should be directed to Huen Wong whose telephone number is (571) 270-3426. The examiner can normally be reached on Monday - Friday (10:30AM EST - 6:30PM EST). If attempts to reach the examiner by telephone are unsuccessful, the Examiner's supervisor, Charles Rones can be reached on (571) 272-4085. The fax phone number for the organization where this application or proceeding is assigned is (571) 273-8300 for regular communications and after final communications. Information regarding the status of an application may be obtained from thePatent Application Information Retrieval (PAIR) system. Status information forpublished applications may be obtained from either Private PAIR or Public PAIR.Status information for unpublished applications is available through Private PAIR only.For more information about the PAIR system, see http://pair-direct.uspto.gov. Shouldyou have questions on access to the Private PAIR system, contact the ElectronicBusiness Center (EBC) at 866-217-9197 (toll-free). If you would like assistance from aUSPTO Customer Service Representative or access to the automated informationsystem, call 800-786-9199 (IN USA OR CANADA) or 571-272-1000. /H .W./ Examiner, AU 2168 01 April 2026 /CHARLES RONES/Supervisory Patent Examiner, Art Unit 2168
Read full office action

Prosecution Timeline

Sep 19, 2023
Application Filed
Sep 06, 2024
Non-Final Rejection — §112
Dec 02, 2024
Response Filed
Mar 11, 2025
Final Rejection — §112
May 27, 2025
Response after Non-Final Action
Jun 17, 2025
Request for Continued Examination
Jun 21, 2025
Response after Non-Final Action
Sep 26, 2025
Non-Final Rejection — §112
Nov 13, 2025
Interview Requested
Nov 19, 2025
Applicant Interview (Telephonic)
Nov 19, 2025
Examiner Interview Summary
Dec 22, 2025
Response Filed
Apr 04, 2026
Final Rejection — §112 (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

5-6
Expected OA Rounds
59%
Grant Probability
99%
With Interview (+45.4%)
4y 7m
Median Time to Grant
High
PTA Risk
Based on 366 resolved cases by this examiner. Grant probability derived from career allow rate.

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