Prosecution Insights
Last updated: October 25, 2026
Application No. 17/547,812

MAGNETIC CORE STRUCTURES

Final Rejection §103
Filed
Dec 10, 2021
Priority
Feb 04, 2020 — provisional 62/970,127 +2 more
Examiner
NGUYEN, TUYEN T
Art Unit
2837
Tech Center
2800 — Semiconductors & Electrical Systems
Assignee
Resonant Link Inc.
OA Round
4 (Final)
82%
Grant Probability
Favorable
5-6
OA Rounds
0m
Est. Remaining
83%
With Interview

Examiner Intelligence

Grants 82% — above average
82%
Career Allowance Rate
1032 granted / 1266 resolved
+13.5% vs TC avg
Minimal +2% lift
Without
With
+1.5%
Interview Lift
resolved cases with interview
Typical timeline
2y 7m
Avg Prosecution
56 currently pending
Career history
1326
Total Applications
across all art units

Statute-Specific Performance

§101
0.6%
-39.4% vs TC avg
§103
56.5%
+16.5% vs TC avg
§102
20.0%
-20.0% vs TC avg
§112
18.3%
-21.7% vs TC avg
Black line = Tech Center average estimate • Based on career data from 1266 resolved cases

Office Action

§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 § 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) 12, 21 and 44 is/are rejected under 35 U.S.C. 103 as being unpatentable over 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]. Uematsu et al. disclose the instant claimed invention except for the specific arrangement of the notches. Uematsu et al. disclose, in other embodiments of figures 41, 47, 50-53, 93-94, 100, 119, 123-125, 128, 130, discloses the notches can be arranged “radially” relative to the central axis. It would have been an obvious to one having ordinary skill in the art, before the effective filing date of the claimed invention, to arrange the notch radially relative to the central axis in Uematsu, for the purpose of facilitating different magnetic flux/field and manufacturing and/or assembling. 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. Uematsu et al. disclose the instant claimed invention except for the specific arrangement of the notches. Uematsu et al. disclose, in other embodiments of figures 41, 47, 50-53, 93-94, 100, 119, 123-125, 128, 130, discloses the notches can be arranged “radially” relative to the central axis. It would have been an obvious to one having ordinary skill in the art, before the effective filing date of the claimed invention, to arrange the notch radially relative to the central axis in Uematsu, for the purpose of facilitating different magnetic flux/field and manufacturing and/or assembling. 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 Applicant's amendment necessitated the new ground(s) of rejection presented in this Office action. Accordingly, THIS ACTION IS MADE FINAL. See MPEP § 706.07(a). Applicant is reminded of the extension of time policy as set forth in 37 CFR 1.136(a). A shortened statutory period for reply to this final action is set to expire THREE MONTHS from the mailing date of this action. In the event a first reply is filed within TWO MONTHS of the mailing date of this final action and the advisory action is not mailed until after the end of the THREE-MONTH shortened statutory period, then the shortened statutory period will expire on the date the advisory action is mailed, and any nonprovisional extension fee (37 CFR 1.17(a)) pursuant to 37 CFR 1.136(a) will be calculated from the mailing date of the advisory action. In no event, however, will the statutory period for reply expire later than SIX MONTHS from the mailing date of this final action. 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

Show 7 earlier events
Feb 26, 2026
Response after Non-Final Action
Mar 10, 2026
Non-Final Rejection mailed — §103
Jun 10, 2026
Interview Requested
Jun 10, 2026
Response after Non-Final Action
Jun 10, 2026
Response Filed
Jun 22, 2026
Examiner Interview Summary
Jul 06, 2026
Response Filed
Oct 01, 2026
Final Rejection mailed — §103 (current)

Precedent Cases

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Patent 12755895
COIL DEVICE
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Patent 12755888
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Study what changed to get past this examiner. Based on 5 most recent grants.

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Prosecution Projections

5-6
Expected OA Rounds
82%
Grant Probability
83%
With Interview (+1.5%)
2y 7m (~0m remaining)
Median Time to Grant
High
PTA Risk
Based on 1266 resolved cases by this examiner. Grant probability derived from career allowance rate.

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