Prosecution Insights
Last updated: April 19, 2026
Application No. 18/631,228

READ/WRITE SWITCHING CIRCUIT AND MEMORY

Final Rejection §112
Filed
Apr 10, 2024
Examiner
ALROBAIE, KHAMDAN N
Art Unit
2824
Tech Center
2800 — Semiconductors & Electrical Systems
Assignee
Changxin Memory Technologies Inc.
OA Round
2 (Final)
86%
Grant Probability
Favorable
3-4
OA Rounds
2y 3m
To Grant
89%
With Interview

Examiner Intelligence

Grants 86% — above average
86%
Career Allow Rate
545 granted / 635 resolved
+17.8% vs TC avg
Minimal +3% lift
Without
With
+2.8%
Interview Lift
resolved cases with interview
Typical timeline
2y 3m
Avg Prosecution
25 currently pending
Career history
660
Total Applications
across all art units

Statute-Specific Performance

§101
3.5%
-36.5% vs TC avg
§103
35.4%
-4.6% vs TC avg
§102
29.0%
-11.0% vs TC avg
§112
19.3%
-20.7% vs TC avg
Black line = Tech Center average estimate • Based on career data from 635 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 . Terminal Disclaimer The terminal disclaimer filed on 1/21/2026 disclaiming the terminal portion of any patent granted on this application which would extend beyond the expiration date of US 11,995,341 has been reviewed and is accepted. The terminal disclaimer has been recorded. Claim Rejections - 35 USC § 112 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 1-17 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. Claim 1 recites “a sixth n-channel metal oxide semiconductor (NMOS)”, “seventh NMOS transistor” and “eighth NMOS transistor.” However, the claim does not have a first to fifth NMOS transistors which creates confusion to the reader whether these transistors do exist in the claims. This renders the claims indefinite. Response to Arguments Applicant's arguments filed 01/21/2026 have been fully considered but they are not persuasive. The applicant’s representative argues on page 6 “The claims were rejected as being indefinite because claim 1 recites "a sixth n-channel metal oxide semiconductor (NMOS)", "seventh NMOS transistor" and "eighth NMOS transistor", without having a first to fifth NMOS transistor which creates confusion to the reader whether these transistors do exist in the claims. Applicant respectfully submits that a first NMOS transistor to an eight NMOS transistor do not indicate any sequential order of NMOS transistors, and are merely used to distinguish different NMOS transistors. Further, a complete and independent technical solution is defined in claim 1, and it can be understood by those skilled in the art that the sixth NMOS transistor, the seventh NMOS transistor, and the eighth NMOS transistor in claim 1 are three different specific NMOS transistors. Therefore, it is respectfully submitted that claim 1 is clear and definite.” The applicant can use any names to distinguish different NMOS transistors as long as it does not make the claim indefinite. In this case, using the term e.g. sixth NMOS transistor will make it unclear whether there are any other transistor and it would confuse skilled people in the art. Allowable Subject Matter Claims 1-20 would be allowable if rewritten or amended to overcome the rejection(s) under 35 U.S.C. 112(b) or 35 U.S.C. 112 (pre-AIA ), 2nd paragraph, set forth in this Office action. 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 KHAMDAN N ALROBAIE whose telephone number is (571)270-7099. The examiner can normally be reached Monday to Thursday (8AM till 6PM). 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, Richard Elms can be reached at (571) 272-1869. 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. /Khamdan N. Alrobaie/Primary Examiner, Art Unit 2824
Read full office action

Prosecution Timeline

Apr 10, 2024
Application Filed
Oct 18, 2025
Non-Final Rejection — §112
Jan 21, 2026
Response Filed
Mar 05, 2026
Final Rejection — §112 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12603122
PARALLEL PIPE LATCH FOR MEMORY ACCESS OPERATIONS
2y 5m to grant Granted Apr 14, 2026
Patent 12603130
MEMORY AND READING, WRITING AND ERASING METHODS THEREOF
2y 5m to grant Granted Apr 14, 2026
Patent 12597466
SEMICONDUCTOR MEMORY DEVICES WITH DIFFERENTIAL THRESHOLD VOLTAGES
2y 5m to grant Granted Apr 07, 2026
Patent 12592280
RESISTIVE RANDOM ACCESS MEMORY AND MEMORY MINI-ARRAY THEREOF WITH IMPROVED RELIABILITY
2y 5m to grant Granted Mar 31, 2026
Patent 12586617
MEMORY MODULE AND SYSTEM SUPPORTING PARALLEL AND SERIAL ACCESS MODES
2y 5m to grant Granted Mar 24, 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
86%
Grant Probability
89%
With Interview (+2.8%)
2y 3m
Median Time to Grant
Moderate
PTA Risk
Based on 635 resolved cases by this examiner. Grant probability derived from career allow rate.

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