Prosecution Insights
Last updated: April 19, 2026
Application No. 18/480,547

FLAT COIL AND COIL DEVICE

Non-Final OA §102§103
Filed
Oct 04, 2023
Examiner
JACKSON, STEPHEN W
Art Unit
2838
Tech Center
2800 — Semiconductors & Electrical Systems
Assignee
TDK Corporation
OA Round
1 (Non-Final)
92%
Grant Probability
Favorable
1-2
OA Rounds
2y 4m
To Grant
99%
With Interview

Examiner Intelligence

Grants 92% — above average
92%
Career Allow Rate
974 granted / 1056 resolved
+24.2% vs TC avg
Moderate +8% lift
Without
With
+7.5%
Interview Lift
resolved cases with interview
Typical timeline
2y 4m
Avg Prosecution
14 currently pending
Career history
1070
Total Applications
across all art units

Statute-Specific Performance

§101
1.1%
-38.9% vs TC avg
§103
25.0%
-15.0% vs TC avg
§102
36.8%
-3.2% vs TC avg
§112
3.0%
-37.0% vs TC avg
Black line = Tech Center average estimate • Based on career data from 1056 resolved cases

Office Action

§102 §103
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 § 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. Claim(s) 1-3,6 and 7 is/are rejected under 35 U.S.C. 102(a)(1) as being anticipated by Kumagai et al (2023/0290562A1). Kumagai discloses a flat coil 1 comprising: a coil main portion 10 having a flat shape; a lead portion 91 drawn out from the coil main portion 10; and a heat-dissipating portion 93 provided to the coil main portion 10 at a location different from where the lead portion 91 is drawn out from the coil main portion 10, the heat-dissipating portion meeting the coil main portion at a predetermined angle (see Fig. 1A). With regard to claim 2, Kumagai discloses the flat coil of claim 1 having a case 45 accommodating the flat coil; and a heat dissipating resin in the case (para 0015). With regard to claim 3, Kumagai discloses the coil device of claim 2, comprising: a bobbin 11 provided with the flat coil 1;and a core 31 disposed along an axis of the flat coil, wherein the case has an opening 41 at the side of case 45. With regard to claim 6, the heat dissipating portion 93 is shown to extend along the side wall of case 45 prior to emerging from the heat dissipating resin of the case. With regard to claim 7, the heat dissipating resin is recited to fill and thus be in contact with case 45 in para 0022. 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. This application currently names joint inventors. In considering patentability of the claims the examiner presumes that the subject matter of the various claims was commonly owned as of the effective filing date of the claimed invention(s) absent any evidence to the contrary. Applicant is advised of the obligation under 37 CFR 1.56 to point out the inventor and effective filing dates of each claim that was not commonly owned as of the effective filing date of the later invention in order for the examiner to consider the applicability of 35 U.S.C. 102(b)(2)(C) for any potential 35 U.S.C. 102(a)(2) prior art against the later invention. Claim(s) 4 and 5 is/are rejected under 35 U.S.C. 103 as being unpatentable over Kumagai et al (2023/0290562A1). Kumagai discloses a flat coil 1 comprising: a coil main portion 10 having a flat shape; a lead portion 91 drawn out from the coil main portion 10; and a heat-dissipating portion 93 provided to the coil main portion 10 at a location different from where the lead portion 91 is drawn out from the coil main portion 10, the heat-dissipating portion meeting the coil main portion at a predetermined angle (see Fig. 1A). Kumagai differs from the claims by not being said to have an opening at the top of the case recited in claim 2 (limitations of claim 4) and by not being said to have the heat dissipating portions disposed opposite the lead portion, with the coil main portion there between. It would have been obvious to one of ordinary skill in the art at the time of the invention to use the teachings of Kumagai to meet the claims because the claims only recite structural variations that would be used by persons of ordinary skill to adjust the coil case and lead configurations to the packaging considerations of a device using the coil device. Allowable Subject Matter Claims 8-14 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: Claims 8-14 recite additional features, such as the connection of a second flat coil as recited in claim 8, that have not been taught or been fairly suggested by the prior art of record. Any inquiry concerning this communication or earlier communications from the examiner should be directed to STEPHEN W JACKSON whose telephone number is (571)272-2051. The examiner can normally be reached M-F 6:30-3:00. 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, Monica Lewis can be reached at 571-272-1838. 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. SWJackson March 4, 2026 /STEPHEN W JACKSON/Primary Examiner, Art Unit 2838
Read full office action

Prosecution Timeline

Oct 04, 2023
Application Filed
Mar 04, 2026
Non-Final Rejection — §102, §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
92%
Grant Probability
99%
With Interview (+7.5%)
2y 4m
Median Time to Grant
Low
PTA Risk
Based on 1056 resolved cases by this examiner. Grant probability derived from career allow rate.

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