Prosecution Insights
Last updated: April 19, 2026
Application No. 18/097,556

COIL COMPONENT

Non-Final OA §102§103§112
Filed
Jan 17, 2023
Examiner
NGUYEN, TUYEN T
Art Unit
2837
Tech Center
2800 — Semiconductors & Electrical Systems
Assignee
TDK Corporation
OA Round
1 (Non-Final)
82%
Grant Probability
Favorable
1-2
OA Rounds
2y 9m
To Grant
82%
With Interview

Examiner Intelligence

Grants 82% — above average
82%
Career Allow Rate
1001 granted / 1226 resolved
+13.6% vs TC avg
Minimal +1% lift
Without
With
+0.8%
Interview Lift
resolved cases with interview
Typical timeline
2y 9m
Avg Prosecution
50 currently pending
Career history
1276
Total Applications
across all art units

Statute-Specific Performance

§101
0.1%
-39.9% vs TC avg
§103
54.5%
+14.5% vs TC avg
§102
22.9%
-17.1% vs TC avg
§112
17.7%
-22.3% vs TC avg
Black line = Tech Center average estimate • Based on career data from 1226 resolved cases

Office Action

§102 §103 §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 . Election/Restrictions Applicant’s election without traverse of Species I, Figures 1-5 with claims 1-3, 6, 8-9 and 12-14 read on the elected Species in the reply filed on 11/21/2025 is acknowledged. 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. Claim 14 is 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 14, there is no antecedent basis for “the first electrode portion”. Applicant should clarify the structure and/or arrangement of “the first electrode portion” intended by “where the first electrode portion includes a surface that connects the first surface and the second surface and entirely overlaps the first surface when viewed from the direction orthogonal to the first surface.” 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)(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. Claim(s) 1-3, 8-9, 13 is/are rejected under 35 U.S.C. 102(a)(2) as being anticipated by Su et al. [KR 2018-0116604 A]. Regarding claims 1-2, 8-9 and 12-14, Su et al. discloses a coil component [100, figures 1-2] comprising: - an element body [50] including a main surface which is used as a mounting surface, wherein the element body includes a plurality of soft magnetic metal particles [metal magnetic particles disposed in a resin that has an electrical insulating property]; - a coil [40] disposed in the element body; and - a first electrode part [82a] embedded in the element body and electrically connected to the coil, wherein the first electrode part includes a first surface exposed from the main surface and a second surface opposing the first surface, and an area of the first surface is larger than an area of the second surface when viewed from a direction orthogonal to the first surface and wherein the first surface and the second surface are parallel to each other [figure 2]. Regarding claim 3, Su et al. further discloses two or more soft magnetic metal particles [Ni-Zn-Cu ferrite particles] are disposed between the coil and the first electrode part along the direction orthogonal to the first surface. Regarding claim 12, Su et al. further an average particle diameter of the plurality of soft magnetic metal particles is 0.1 μm or more and 30 μm or less. Regarding claim 14, as best understood in view of the rejection under 35 USC 112 second paragraph, Su et al. further discloses an electrode portion [82] includes a surface that connects the first surface of the first electrode part and entirely overlaps the first surface when viewed from the direction orthogonal to the first surface [figure 2]. 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. Claim(s) 6 is/are rejected under 35 U.S.C. 103 as being unpatentable over Su et al. in view of Jin et al. [KR 10-2025709 B1]. Regarding claim 6, Su et al. further discloses an external electrode [82] disposed on the element body, wherein the element body includes a main surface on which the first electrode part is exposed and an end surface adjacent to the main surface. Su et al. disclose the instant claimed invention except for the external electrode includes a first electrode portion provided on the end surface and a second electrode portion connected to the first electrode portion and covering the first electrode part. Yoon et al. discloses a coil component [figure 1] including: - a body [100] having a main mounting surface and a side/end surface adjacent to the main mounting surface; and - at least one external electrode [400, 500] having multiple portions cover the surfaces of the body and connected to an internal coil. It would have been an obvious to one having ordinary skill in the art, before the effective filing date of the claimed invention, to use external electrode design of Yoon et al. in Su et al. for the purpose of facilitating internal and/or external connections and mounting. Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to TUYEN T NGUYEN whose telephone number is (571)272-1996. The examiner can normally be reached Mon - Fri 8:30-5:30. 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, Shawki Ismail can be reached at 571-272-3985. 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. /TUYEN T NGUYEN/Primary Examiner, Art Unit 2837
Read full office action

Prosecution Timeline

Jan 17, 2023
Application Filed
Feb 03, 2026
Non-Final Rejection — §102, §103, §112
Apr 15, 2026
Applicant Interview (Telephonic)
Apr 15, 2026
Examiner Interview Summary

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12603221
IMPROVED LOW-EMI TRANSFORMER
2y 5m to grant Granted Apr 14, 2026
Patent 12597552
Magnetic Device and the Method to Make the Same
2y 5m to grant Granted Apr 07, 2026
Patent 12592633
POWER CONVERSION MODULE AND MAGNETIC DEVICE THEREOF
2y 5m to grant Granted Mar 31, 2026
Patent 12592335
LAMINATED COIL COMPONENT
2y 5m to grant Granted Mar 31, 2026
Patent 12586708
INNOVATIVE PLANAR ELECTROMAGNETIC COMPONENT STRUCTURE
2y 5m to grant Granted Mar 24, 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
82%
Grant Probability
82%
With Interview (+0.8%)
2y 9m
Median Time to Grant
Low
PTA Risk
Based on 1226 resolved cases by this examiner. Grant probability derived from career allow rate.

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