Prosecution Insights
Last updated: April 19, 2026
Application No. 18/307,320

BANDGAP VOLTAGE REFERENCE CIRCUIT WITH CURRENT MIRROR LOOP

Non-Final OA §102§112
Filed
Apr 26, 2023
Examiner
HILTUNEN, THOMAS J
Art Unit
2849
Tech Center
2800 — Semiconductors & Electrical Systems
Assignee
Texas Instruments Incorporated
OA Round
4 (Non-Final)
81%
Grant Probability
Favorable
4-5
OA Rounds
2y 1m
To Grant
87%
With Interview

Examiner Intelligence

Grants 81% — above average
81%
Career Allow Rate
1003 granted / 1235 resolved
+13.2% vs TC avg
Moderate +6% lift
Without
With
+6.0%
Interview Lift
resolved cases with interview
Fast prosecutor
2y 1m
Avg Prosecution
30 currently pending
Career history
1265
Total Applications
across all art units

Statute-Specific Performance

§101
0.2%
-39.8% vs TC avg
§103
44.4%
+4.4% vs TC avg
§102
39.7%
-0.3% vs TC avg
§112
10.9%
-29.1% vs TC avg
Black line = Tech Center average estimate • Based on career data from 1235 resolved cases

Office Action

§102 §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 1-6 and 8 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 the limitation "the first transistor" in line 8 and “the second transistor” in line 11. There is insufficient antecedent basis for these limitations in the claim. With respect to claim 2, it cannot be determined if the recitation of “a first transistor” in line 2 refers to the same or a different transistor as the recitation of “the first transistor” in claim 1. Furthermore, it cannot be determined if the recitation of “a second transistor” in line 3 references to the same or a different as the recitation of “the second transistor” in claim 1. Claims 2-6 and 8 are rejected for the same reasons as claim 1. Claim Rejections - 35 USC § 102 In the event the determination of the status of the application as subject to AIA 35 U.S.C. 102 and 103 (or as subject to pre-AIA 35 U.S.C. 102 and 103) is incorrect, any correction of the statutory basis (i.e., changing from AIA to pre-AIA ) for the rejection will not be considered a new ground of rejection if the prior art relied upon, and the rationale supporting the rejection, would be the same under either status. The following is a quotation of the appropriate paragraphs of 35 U.S.C. 102 that form the basis for the rejections under this section made in this Office action: A person shall be entitled to a patent unless – (a)(1) the claimed invention was patented, described in a printed publication, or in public use, on sale, or otherwise available to the public before the effective filing date of the claimed invention. Claim(s) 1 is/are rejected under 35 U.S.C. 102(a)(1) as being anticipated by Krishnan et al. (USPAPN 2021/0349490). With respect to claim 1, as far as can be understood, Krishnan et al. discloses, in Fig. 1, an apparatus (Fig. 1), comprising: a bandgap reference circuit (Fig. 1) having a reference voltage output (Vbg) and including: an operational amplifier (OP AMP) (OP1) having a first input (non-inverting terminal), a second input (inverting terminal), and an output (123), the output coupled to the reference voltage output (Vbg); a first diode device (M1) coupled between the reference voltage output (Vbg) and the first input (non-inverting terminal via R1); a resistor (R3) coupled to a ground terminal (ground); a first current source coupled between the first input and the resistor (M2) and configurable to provide a first current to the first transistor (current generated by M2); a second diode device coupled between the second input and the resistor (M4); and a second current source coupled between the reference voltage output and the second input (M3) and configurable to provide a second current to the second transistor (current generated by M3). Allowable Subject Matter Claims 2-3, 5-6 and 8 would be allowable if rewritten 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 and to include all of the limitations of the base claim and any intervening claims. Claims 9, 11-13 and 21 are allowed. Claims 14 and 17-20 are allowed. Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to Thomas J. Hiltunen whose telephone number is (571)272-5525. The examiner can normally be reached 9:00AM-5:30PM EST M-F. 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, Menatoallah Youssef can be reached at 571-270-3684. 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. /THOMAS J. HILTUNEN/ Primary Examiner, Art Unit 2849
Read full office action

Prosecution Timeline

Apr 26, 2023
Application Filed
May 30, 2024
Non-Final Rejection — §102, §112
Sep 06, 2024
Response Filed
Nov 08, 2024
Final Rejection — §102, §112
Apr 14, 2025
Request for Continued Examination
Apr 16, 2025
Response after Non-Final Action
May 02, 2025
Non-Final Rejection — §102, §112
Aug 07, 2025
Response Filed
Jan 22, 2026
Request for Continued Examination
Feb 02, 2026
Response after Non-Final Action
Feb 13, 2026
Non-Final Rejection — §102, §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

4-5
Expected OA Rounds
81%
Grant Probability
87%
With Interview (+6.0%)
2y 1m
Median Time to Grant
High
PTA Risk
Based on 1235 resolved cases by this examiner. Grant probability derived from career allow rate.

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