Prosecution Insights
Last updated: April 19, 2026
Application No. 17/547,812

MAGNETIC CORE STRUCTURES

Non-Final OA §102
Filed
Dec 10, 2021
Examiner
NGUYEN, TUYEN T
Art Unit
2837
Tech Center
2800 — Semiconductors & Electrical Systems
Assignee
Resonant Link Inc.
OA Round
3 (Non-Final)
82%
Grant Probability
Favorable
3-4
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
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 with traverse of Species III, Figures 4A-4B in the reply filed on 2/03/2025 is acknowledged. The traversal is on the ground(s) that claims 1-3, 6-7, 10-11This is not found persuasive because claim 1, as amended, requires “a center post having a plurality of post pieces, each post piece having (i) a thickness contributing to a height of the center post, (ii) a radial extent, and (iii) at least one first notch disposed in the post piece and occupying the entire radial extent of the post piece, and a backplate having (a) a plurality of magnetic material members extending radially between the center post and the outer rim; and b) a plurality of radially disposed notches, wherein each of the notches of the backplate is wedge-shaped and has a width that increases with increased distance from the center post” do not read on elected Species III of Figures 4A-4B. Claims 6-7 and 10-11 will be withdrawn. Claim 14 is canceled, per amendment. Claim 16, as amended, requires “the first angular location matches the third angular location, and the second angular location differs from the first angular location” do not read on the elected Species III of Figures 4A-4B. Claims 12, 21 and 44 will be examined herewith. The requirement is still deemed proper and is therefore made FINAL. 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) 12, 21 and 44 is/are rejected under 35 U.S.C. 102(a)(2) as being anticipated by Uematsu et al. [JP 2000-040626 A]. Regarding claim 12, Uematsu et al. discloses an apparatus [figure 94], comprising: a magnetic core, comprising: A) a center post [part of hole 11] defining a central axis and having at least one first notch [figure 94], radially disposed therein, that defines a first angular location about the central axis; B) an outer rim [31] having at least one second notch [figure 94], radially disposed therein, that defines a second angular location about the central axis; and C) a backplate [bottom part of core 10, figure 94] having at least one third notch, radially disposed therein, that defines a third angular location about the central axis; wherein the first angular location differs from at least one of the second angular location and the third angular location [figure 94]. Regarding claim 21, Uematsu et al. further discloses a winding [42a, 42b] magnetically coupled to the magnetic core. Regarding claim 44, Uematsu et al. discloses an apparatus [figure 94], comprising: a magnetic core [10], comprising: a center post [part of hole 11]; an outer rim [31]; a backplate [bottom part of core 10]; and at least two notches selected from the group consisting of: a first notch in the center post [figure 94], a second notch in the outer rim [figure 94], and a third notch in the backplate [figure 94], wherein the at least two notches occupy distinct angular locations [figure 94], and wherein a combination of the at least two notches reduces or eliminates dimensional resonance. Response to Arguments Applicant’s arguments with respect to claim(s) 12, 21 and 44 have been considered but are moot because the new ground of rejection does not rely on any reference applied in the prior rejection of record for any teaching or matter specifically challenged in the argument. 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

Dec 10, 2021
Application Filed
Mar 22, 2022
Response after Non-Final Action
Feb 08, 2025
Non-Final Rejection — §102
Jun 13, 2025
Response Filed
Sep 19, 2025
Final Rejection — §102
Dec 29, 2025
Response after Non-Final Action
Feb 23, 2026
Request for Continued Examination
Feb 26, 2026
Response after Non-Final Action
Mar 06, 2026
Non-Final Rejection — §102 (current)

Precedent Cases

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Study what changed to get past this examiner. Based on 5 most recent grants.

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Prosecution Projections

3-4
Expected OA Rounds
82%
Grant Probability
82%
With Interview (+0.8%)
2y 9m
Median Time to Grant
High
PTA Risk
Based on 1226 resolved cases by this examiner. Grant probability derived from career allow rate.

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