Prosecution Insights
Last updated: April 19, 2026
Application No. 17/584,302

NEUROMORPHIC DEVICE AND UNIT SYNAPSE DEVICE FORMING THE SAME

Non-Final OA §103
Filed
Jan 25, 2022
Examiner
NGO, BRIAN
Art Unit
2851
Tech Center
2800 — Semiconductors & Electrical Systems
Assignee
Postech Research And Business Development Foundation
OA Round
1 (Non-Final)
88%
Grant Probability
Favorable
1-2
OA Rounds
2y 4m
To Grant
99%
With Interview

Examiner Intelligence

Grants 88% — above average
88%
Career Allow Rate
851 granted / 967 resolved
+20.0% vs TC avg
Moderate +12% lift
Without
With
+12.2%
Interview Lift
resolved cases with interview
Typical timeline
2y 4m
Avg Prosecution
24 currently pending
Career history
991
Total Applications
across all art units

Statute-Specific Performance

§101
14.2%
-25.8% vs TC avg
§103
36.9%
-3.1% vs TC avg
§102
38.3%
-1.7% vs TC avg
§112
7.0%
-33.0% vs TC avg
Black line = Tech Center average estimate • Based on career data from 967 resolved cases

Office Action

§103
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 Non-Final office is a response to the papers filed on 01/09/2026. Claims 8-14 are pending, claims 1-7 are cancelled.. Remark In the Office Action, claims 1-14 were restricted under 35 U.S.C. 121 by a genus- species type restriction. The restriction indicated that Species I and Species II claims respectively fall into the following two groups: Groups: I. Group I drawn to claims 1-7 which disclose a synapse array having unit synapse devices formed in regions where a plurality of word line pairs and a plurality of bit lines intersect each other. II. Group II drawn to claims 8-14 which disclose a cumulative stack portion formed on a substrate; and a through-hole portion formed through the cumulative stack portion. Applicant’s election without traverse of Group II (claims 8-14) in the reply filed on 01/09/2025 is acknowledged. Claims 1-7 withdrawn from further consideration pursuant to 37 CFR 1.142(b) as being drawn to a nonelected invention, there being no allowable generic or linking claim. Election was made without traverse in the reply filed on 01/09/2025. Claim Rejections - 35 USC § 103 The following is a quotation of 35 U.S.C. 103 which forms the basis for all obviousness rejections set forth in this Office action: A patent for a claimed invention may not be obtained, notwithstanding that the claimed invention is not identically disclosed as set forth in section 102, if the differences between the claimed invention and the prior art are such that the claimed invention as a whole would have been obvious before the effective filing date of the claimed invention to a person having ordinary skill in the art to which the claimed invention pertains. Patentability shall not be negated by the manner in which the invention was made. Claim 8 is rejected under 35 U.S.C. 103 as being unpatentable over YUSUKE et AL. (JP 2021106262 A) in view of TOSHIAKI (JP 2004273480 A). Regarding claim 8, Yusuke discloses: A unit synapse device (see Fig. 1, 65-67, page 11, paragraph 11, when the memristor 10 is used as a synapse….) comprising: a cumulative stack portion formed on a substrate (see Fig. 65-67, substrate 1 or 21, stack portion layers 21, 24, and 27 formed on substrate 21); and a through-hole portion formed through the cumulative stack portion (see Fig. 65-67, through-hole portion 28-1, see page 34, paragraph 4-5, oxide semiconductor layer 27 via the through hole 28-1…..), wherein the through-hole portion has a via oxide layer in contact with the cumulative stack portion (see page 34, paragraph 4-5, oxide semiconductor layer 27 via the through hole 28-1…..), and a learning operation or an inference operation is performed (see pages 11, paragraph 11 to page 12 paragraph 1-3, the synaptic coupling increases (decreases) with respect to the input signal, and learning is completed…., see page 17-18, see page 32, paragraph 11, the function of associative learning can be realized by using the memristor 20….). Note Yusuke discloses a semiconductor element is used as a synapse and comprising the through hole has a via oxide layer in contact with the cumulative stack portion. However, Yosuke fails to disclose: a common electrode configured to fill the inside of the via oxide layer. Toshiaki discloses a semiconductor device using the wiring board which is relate to the semiconductor element. Thus, Toshiaki discloses: a common electrode configured to fill the inside of the via oxide layer (see par [0018-0019], the through holes 12 formed in the substrate made of the porous metal oxide film 11, the inside of the through hole 12 where the electrode is formed is filled with the conductive material 13, and the other inside of the through hole 12 is formed….). It would have been obvious to one of ordinary skill in the art at the time the invention was made to have modified a semiconductor element of Yosuke to include a common electrode configured to fill the inside of the via oxide layer in order for the surface and the back surface of the element can be conducted only in the minimum necessary area where the electrodes are formed (see Toshiaki par [0019]). Allowable Subject Matter Claims 9-14 are objected to as being dependent upon a rejected base claim, but would be allowable if rewritten in independent form including all of the limitations of the base claim and any intervening claims. The following is a statement of reasons for the indication of allowable subject matter: The prior art of record does not teach or suggest the limitation as in claim 9. Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to BRIAN NGO whose telephone number is (571)270-7011. The examiner can normally be reached M-F 7AM-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, Jack Chiang can be reached at 5712727483. 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. /BRIAN NGO/ Primary Examiner, Art Unit 2851
Read full office action

Prosecution Timeline

Jan 25, 2022
Application Filed
Jan 23, 2026
Non-Final Rejection — §103 (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

1-2
Expected OA Rounds
88%
Grant Probability
99%
With Interview (+12.2%)
2y 4m
Median Time to Grant
Low
PTA Risk
Based on 967 resolved cases by this examiner. Grant probability derived from career allow rate.

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