Prosecution Insights
Last updated: July 17, 2026
Application No. 18/428,825

MULTIPLEXED NUCLEIC ACID AMPLIFICATION TEST ON SEMICONDUCTOR SUBSTRATE

Non-Final OA §112
Filed
Jan 31, 2024
Priority
Sep 08, 2023 — provisional 63/581,388
Examiner
PREVIL, DANIEL
Art Unit
Tech Center
Assignee
Texas Instruments Incorporated
OA Round
1 (Non-Final)
86%
Grant Probability
Favorable
1-2
OA Rounds
0m
Est. Remaining
98%
With Interview

Examiner Intelligence

Grants 86% — above average
86%
Career Allowance Rate
1347 granted / 1570 resolved
+25.8% vs TC avg
Moderate +12% lift
Without
With
+12.1%
Interview Lift
resolved cases with interview
Fast prosecutor
2y 1m
Avg Prosecution
29 currently pending
Career history
1591
Total Applications
across all art units

Statute-Specific Performance

§101
0.5%
-39.5% vs TC avg
§103
73.2%
+33.2% vs TC avg
§102
3.6%
-36.4% vs TC avg
§112
8.5%
-31.5% vs TC avg
Black line = Tech Center average estimate • Based on career data from 1570 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 . 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 28-32 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. Regarding claim 28, the limitation “the first and second reagents” in line 9, there is insufficient antecedent basis for this limitation in the claim because “the first and second reagents” have not been previously introduced in the claims. Claims 29-32 are rejected for the same reason as depend from an independent claim 28. Allowable Subject Matter Claims 1-27 are allowed. The following is a statement of reasons for the indication of allowable subject matter: a back end of line (BEOL) structure on the semiconductor substrate, the BEOL structure including multiple microfluidic channels, each microfluidic channel including a flow control device configured to selectively permit and restrict flow of fluids; multiple fluid sensors including first and second fluid sensors in the BEOL structure; a main reaction reservoir on the BEOL structure configured to store a reagent, in which the reagent is operable to replicate a nucleic strand in a biological sample to cause a pH change, and the first fluid sensor is exposed in the main reaction reservoir; an auxiliary reservoir on the BEOL structure and coupled to the main reaction reservoir via a microfluid channel of the multiple microfluidic channels, in which the second fluid sensor is exposed in the auxiliary reaction reservoir; and a controller coupled to the first and second fluid sensors. Conclusion The prior art made of record and not relied upon is considered pertinent to applicant's disclosure. Pawlak et al. (US 2023/0288321) discloses optical…….sensor. Steglich et al. (US 2020/0200972) discloses photonic……arrangement. Clarke et al. (US 2019/0293692) discloses spark…gap……events. Clarke et al. (US 2018/0088155) discloses electrical overstress detection device. Any inquiry concerning this communication or earlier communications from the examiner should be directed to DANIEL PREVIL whose telephone number is (571)272-2971. The examiner can normally be reached Monday-Friday from 9:30 AM -6:00 PM. 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, Wang Quan-Zhen can be reached at 571 272 3114. 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. DP June 18, 2026 /DANIEL PREVIL/ Primary Examiner, Art Unit 2685
Read full office action

Prosecution Timeline

Jan 31, 2024
Application Filed
Jun 23, 2026
Non-Final Rejection mailed — §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

1-2
Expected OA Rounds
86%
Grant Probability
98%
With Interview (+12.1%)
2y 1m (~0m remaining)
Median Time to Grant
Low
PTA Risk
Based on 1570 resolved cases by this examiner. Grant probability derived from career allowance rate.

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