Prosecution Insights
Last updated: April 19, 2026
Application No. 18/775,941

DISTRIBUTED CONSTANT CIRCUIT

Non-Final OA §102§Other
Filed
Jul 17, 2024
Examiner
JONES, STEPHEN E
Art Unit
2843
Tech Center
2800 — Semiconductors & Electrical Systems
Assignee
Rohm Co. Ltd.
OA Round
1 (Non-Final)
83%
Grant Probability
Favorable
1-2
OA Rounds
2y 3m
To Grant
92%
With Interview

Examiner Intelligence

Grants 83% — above average
83%
Career Allow Rate
656 granted / 793 resolved
+14.7% vs TC avg
Moderate +9% lift
Without
With
+9.2%
Interview Lift
resolved cases with interview
Typical timeline
2y 3m
Avg Prosecution
20 currently pending
Career history
813
Total Applications
across all art units

Statute-Specific Performance

§101
0.7%
-39.3% vs TC avg
§103
42.2%
+2.2% vs TC avg
§102
31.2%
-8.8% vs TC avg
§112
15.9%
-24.1% vs TC avg
Black line = Tech Center average estimate • Based on career data from 793 resolved cases

Office Action

§102 §Other
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 . Priority Acknowledgment is made of applicant's claim for foreign priority based on an application filed in Japan on 2/22/22. It is noted, however, that applicant has not filed a certified copy of the JP2022-025817 application as required by 37 CFR 1.55. An attempt by the USPTO to electronically retrieve the priority document was made but failed. Election/Restrictions Applicant’s election without traverse of Species I (Figs. 1A and 3A) in the reply filed on 1/12/26 is acknowledged. Applicant indicated that claims 1-2 and 14 read on the elected species. Accordingly, claims 3-13 are withdrawn from further consideration pursuant to 37 CFR 1.142(b) as being drawn to a nonelected species, there being no allowable generic or linking claim. Election was made without traverse in the reply filed on 1/12/26. 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. Claims 1-2 and 14 are rejected under 35 U.S.C. 102a1 as being clearly anticipated by Kuroda et al. (US 5,233,360). Kuroda (e.g. Fig. 8) teaches a distributed constant circuit (e.g. 43-47 is a microstrip transmission line and a microstrip is fundamentally a distributed constant structure) including: Regarding Claim 1, a dielectric (e.g. 42) including a first main surface (e.g. the top surface having the line 43-47) and a second main surface (e.g. the bottom surface of the dielectric 42) opposed to the first main surface; a transmission line (e.g. 43-47) arranged on the first main surface; and a ground electrode arranged on the second main surface (e.g. see Col. 5, lines 18-28, a ground is on the dielectric and which is on a layer opposite the transmission line conductor by the definition of a microstrip), wherein the transmission line includes a first line (e.g. 43, 47), a second line (e.g. 44, 46), and a third line (e.g. 45) that are formed to have different widths, and the transmission line includes a periodic structure in which the first line, the second line, the third line, the second line, and the first line are arranged in series in this order (e.g. see Fig. 8 and Col. 5, lines 18-28, line portions 43 thru 47 are in series order and have the width relationships in the same orientations as Fig. 1A of the present invention). Regarding Claim 2, wherein the periodic structure is a periodic structure or a plurality of periodic structures that are electrically connected (e.g. the transmission line circuit is a one period periodic structure identical to the Applicant’s elected species Fig. 1A and [0012] of Applicant’s specification). Regarding Claim 14, wherein the transmission line includes a microstrip line (e.g. see Col. 5, lines 23-25, the line 43-47 is microstrip). Conclusion The prior art made of record and not relied upon is considered pertinent to applicant's disclosure. Carlson et al. (US 4,233,579) teaches a periodic transmission line structure (e.g. see Fig. 1). Mochizuki (e.g. US 2008/0117004) teaches a transmission line filter (e.g. see Fig. 10). Any inquiry concerning this communication or earlier communications from the examiner should be directed to STEPHEN E JONES whose telephone number is (571)272-1762. The examiner can normally be reached 9AM to 5PM. 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, Andrea Lindgren Baltzell can be reached at 571-272-5918. 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. /Stephen E. Jones/Primary Examiner, Art Unit 2843
Read full office action

Prosecution Timeline

Jul 17, 2024
Application Filed
Feb 12, 2026
Non-Final Rejection — §102, §Other (current)

Precedent Cases

Applications granted by this same examiner with similar technology

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HIGH-FREQUENCY TRANSMISSION ELEMENT
2y 5m to grant Granted Apr 14, 2026
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DIELECTRIC RESONATOR, AND DIELECTRIC FILTER AND MULTIPLEXER USING SAME
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Patent 12580293
RESONATOR AND METHOD OF MANUFACTURING THE RESONATOR
2y 5m to grant Granted Mar 17, 2026
Patent 12580291
Highly-Integrated Antenna Feed Assembly
2y 5m to grant Granted Mar 17, 2026
Patent 12573999
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2y 5m to grant Granted Mar 10, 2026
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
83%
Grant Probability
92%
With Interview (+9.2%)
2y 3m
Median Time to Grant
Low
PTA Risk
Based on 793 resolved cases by this examiner. Grant probability derived from career allow rate.

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