Prosecution Insights
Last updated: July 17, 2026
Application No. 18/896,945

REFERENCE VOLTAGE CIRCUIT

Non-Final OA §102§112
Filed
Sep 26, 2024
Priority
Sep 29, 2023 — JP 2023-170227 +1 more
Examiner
KIM, JUNG H
Art Unit
2842
Tech Center
2800 — Semiconductors & Electrical Systems
Assignee
Ablic Inc.
OA Round
1 (Non-Final)
89%
Grant Probability
Favorable
1-2
OA Rounds
0m
Est. Remaining
95%
With Interview

Examiner Intelligence

Grants 89% — above average
89%
Career Allowance Rate
683 granted / 771 resolved
+20.6% vs TC avg
Moderate +6% lift
Without
With
+6.1%
Interview Lift
resolved cases with interview
Fast prosecutor
1y 10m
Avg Prosecution
20 currently pending
Career history
785
Total Applications
across all art units

Statute-Specific Performance

§101
0.9%
-39.1% vs TC avg
§103
64.0%
+24.0% vs TC avg
§102
26.1%
-13.9% vs TC avg
§112
7.1%
-32.9% vs TC avg
Black line = Tech Center average estimate • Based on career data from 771 resolved cases

Office Action

§102 §112
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 Election/Restrictions Applicant’s election of Species B in the reply filed May 6, 2026 is acknowledged. Because applicant did not distinctly and specifically point out the supposed errors in the restriction requirement, the election has been treated as an election without traverse (MPEP § 818.03(a)). Claim 2 drawn to the non-elected species has been withdrawn from examination for patentability. 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. Claims 1 and 3-5 are rejected under 35 U.S.C. 112(b) as being indefinite for failing to particularly point out and distinctly claim the subject matter which the inventor or a joint inventor, or for pre-AIA the applicant regards as the invention. In claim 1, the claimed feature that a first NMOS transistor contains a source connected to the back gate of the first PMOS transistor and a ground terminal and a second NMOS transistor contains a source connected to the back gate of the first PMOS transistor and the ground terminal is inconsistent with the specification. Fig. 2 shows a first NMOS transistor 3 and a second NMOS transistor 4 that each have a source connected to the back gate of the same NMOS transistor and the ground terminal instead. Thus, the feature has been interpreted to require a first NMOS transistor containing a source connected to the back gate of the first NMOS transistor and a ground terminal and a second NMOS transistor containing a source connected to the back gate of the second NMOS transistor and the ground terminal instead. The term “the voltage generated between the first port and the second port” lacks proper antecedent basis. Dependent claims 3-5 are rejected for the above-discussed reasons. Claim Rejections - 35 USC § 102 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. (a)(2) the claimed invention was described in a patent issued under section 151, or in an application for patent published or deemed published under section 122(b), in which the patent or application, as the case may be, names another inventor and was effectively filed before the effective filing date of the claimed invention. Claims 1 and 3 are rejected under 35 U.S.C. 102(a)(1) as being anticipated by US 6,147,548 to Doyle (cited in an IDS). With respect to claim 1, insofar as understood, Doyle discloses in Fig. 6 a reference voltage circuit including a differential amplifier circuit, the differential amplifier circuit comprising: a first PMOS transistor (e.g., i8) containing a gate corresponding to a first input port, a source, and a drain; a second PMOS transistor (e.g., i6) containing a gate corresponding to a second input port, a source connected to the source of the first PMOS transistor, a back gate connected to the back gate of the first PMOS transistor (e.g., i6), and a drain; a first NMOS transistor (e.g., i0) containing a drain connected to the drain of the first PMOS transistor (e.g., i8), a gate connected to the drain of the first NMOS transistor (e.g., i0) and the drain of the first PMOS transistor (e.g., i8), a back gate, and a source connected to the back gate of the first NMOS transistor (e.g., i0) and a ground terminal; a second NMOS transistor (e.g., i1) containing a drain connected to the drain of the second PMOS transistor (e.g., i6), a gate connected to the drain of the second NMOS transistor (e.g., i1), a back gate, and a source connected to the back gate of the second NMOS transistor (e.g., i1) and the ground terminal; and a voltage adjustment circuit (e.g., i17 and i15) comprising: a first terminal (e.g., the junction between i17 and i15) connected to commonly connected sources of the first PMOS transistor and the second PMOS transistor (e.g., i8 and i6); a second terminal (e.g., the junction between i14-i15) connected to commonly connected back gates of the first PMOS transistor and the second PMOS transistor (e.g., i8 and i6); and a power input terminal (e.g., the source of i17) connected to a power supply terminal, the voltage adjustment circuit being configured to increase and decrease a voltage (e.g., a voltage at the junction of i17 and i15) generated between (e.g., the junction of i17 and i15 is between the gate of i8 and the gate of i6 and is generated in response to the gate voltages) the first port (e.g., the gate of i8) and the second port (e.g., the gate of i6) in response to a change in an input voltage (e.g., INB-INA) of the differential amplifier circuit. With respect to claim 3, the voltage adjustment circuit (e.g., i17 and i15) comprises a current source (e.g., i17) connected between the power supply terminal and the second terminal (e.g., the junction between i14-i15), and a resistor (e.g., i15) connected between the first terminal (e.g., the junction between i17 and i15) and the second terminal (e.g., the junction between I14-15), and the current source (e.g., i17) is a variable current source (e.g., i17 is a transistor that changes its resistance according to POUT and as POUT changes according to changes in INB-INA, the resistance of i17 changes) configured to adjust a current value such that a voltage generated across both terminals of the resistor (e.g., i15) increases and decreases in response to a change in an input voltage of the differential amplifier circuit (e.g., i17 is a transistor that changes its resistance according to POUT and as POUT changes according to changes in INB-INA, the resistance of i17 changes). Allowable Subject Matter Claims 4-5 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. Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to Jung KIM whose telephone number is (571)270-7964. The examiner can normally be reached on M-F from 9AM to 5:30PM. If attempts to reach the examiner by telephone are unsuccessful, the examiner's supervisor, Regis BETSCH, can be reached at (571)270-7101. The fax phone number for the organization where this application or proceeding is assigned is 571-273-8300. Information regarding the status of an application may be obtained from the Patent Application Information Retrieval (PAIR) system. 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. /JUNG KIM/ Primary Examiner, Art Unit 2836
Read full office action

Prosecution Timeline

Sep 26, 2024
Application Filed
May 27, 2026
Non-Final Rejection mailed — §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

1-2
Expected OA Rounds
89%
Grant Probability
95%
With Interview (+6.1%)
1y 10m (~0m remaining)
Median Time to Grant
Low
PTA Risk
Based on 771 resolved cases by this examiner. Grant probability derived from career allowance rate.

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