Prosecution Insights
Last updated: April 19, 2026
Application No. 18/629,432

POWER SUPPLY, MAGNETIC CORE TRANSFORMER, AND PCB

Non-Final OA §103
Filed
Apr 08, 2024
Examiner
PEREZ, BRYAN REYNALDO
Art Unit
2838
Tech Center
2800 — Semiconductors & Electrical Systems
Assignee
Young In Ace Co. Ltd.
OA Round
1 (Non-Final)
84%
Grant Probability
Favorable
1-2
OA Rounds
2y 5m
To Grant
98%
With Interview

Examiner Intelligence

Grants 84% — above average
84%
Career Allow Rate
595 granted / 712 resolved
+15.6% vs TC avg
Moderate +14% lift
Without
With
+14.3%
Interview Lift
resolved cases with interview
Typical timeline
2y 5m
Avg Prosecution
34 currently pending
Career history
746
Total Applications
across all art units

Statute-Specific Performance

§101
0.4%
-39.6% vs TC avg
§103
52.7%
+12.7% vs TC avg
§102
34.2%
-5.8% vs TC avg
§112
9.8%
-30.2% vs TC avg
Black line = Tech Center average estimate • Based on career data from 712 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 . This non-final office action is responsive to Applicants' application filed on 04/08/24. Claims 1-19 are presented for examination and are pending for the reasons indicated herein below. 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 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. 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 of this title, 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. Claims 9-10 rejected under 35 U.S.C. 103 as being unpatentable over Bowman et al. (US 5619400 A) in view of Folker et al. (US 9396865 B1) PNG media_image1.png 373 470 media_image1.png Greyscale Regarding claim 9. Bowman teaches a device [fig 1-2] comprising: a first conductive line [line in leg 2 and leg 3] placed on one surface of the board [implicit col 8 lines 35-45]; and a second conductive line [line in leg 1] placed on a surface opposite to the one surface of the board, wherein the first conductive line includes an inner winding and an outer winding [see inner/outer winding cited above], and wherein the inner winding and the outer winding form a single turn winding [winding form a single turn in each leg], and the outer winding and the inner winding are connected in series to each other [implicit from n2 and n3 winding shown in fig 1]. However, Bowman does not explicitly mention printed circuit board (PCB) comprising: a board. Folker teaches printed circuit board (PCB) comprising: a board [50]. It would have been obvious to a person of ordinary skill in the art before the effective filing date of the claimed invention to use the features of Folker in order to provide electrical reliability by reducing risk of loose wires, and wiring mistakes. Regarding claim 10. Bowman as modified teaches the PCB of claim 9, wherein the second conductive line is placed in a spiral shape [fig 2, lines are shown in a spiral shape in Bowman]. Allowable Subject Matter Claims 1-8 and 11-19 are allowed. Regarding claim 1, Wang teaches a power supply [fig4, 58] comprising: a radio frequency (RF) power source [58]; a magnetic core transformer [70] including a first transformer and a second transformer [L1-L1/L3-L4], each of which boosts an output of the RF power source [36]. The following is an examiner' s statement of reasons for allowance: The prior art does not disclose or suggest, in combination with the limitations of the base claim and any intervening claims, primarily, “…direct current (DC) decoupling capacitors connected between a ground and a first terminal among output terminals of the first transformer and the second transformer; variable capacitors connected between the ground and a second terminal among the output terminals of the first transformer and the second transformer; a DC power source configured to provide a DC voltage to the first terminal; an output terminal configured to output the DC voltage and a boosted RF voltage, wherein each of the first transformer and the second transformer includes an input coil, a magnetic core, and an output coil, wherein the input coil includes an outer winding and an inner winding, and wherein the outer winding and the inner winding form a single turn winding, and the outer winding and the inner winding are connected in series to each other.” Regarding claim 11, Folker teaches a magnetic core transformer [fig 1] comprising: a first magnetic core [30b]; a second magnetic core [30a]; and a first printed circuit board [50] and a second printed circuit board [60], wherein a first conductive line is placed on one surface of each of the first printed circuit board [70 placed perpendicular] and the second printed circuit board [70 placed parallel], and a second conductive line [40] is placed on a surface opposite to the one surface [40 is opposite to 70’s surface location]. The following is an examiner' s statement of reasons for allowance: The prior art does not disclose or suggest, in combination with the limitations of the base claim and any intervening claims, primarily, “…wherein the first conductive line includes an inner winding and an outer winding, and wherein the inner winding and the outer winding form a single turn winding, and the outer winding and the inner winding are connected in series to each other.” Examiner Note The examiner cites particular columns and lines numbers in the references as applied to the claims above for the convenience of the applicant. Although the specified citations are representative of the teachings in the art and are applied to the specific limitations within the individual claim, other passages and figures may apply as well. It is respectfully requested that, in preparing responses, the applicant fully consider the references in their entirety as potentially teaching all or part of the claimed invention, as well as the context of the passage as taught by the prior art or disclosed by the examiner. Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to Bryan Perez whose telephone number is (571)272-8837. The examiner can normally be reached on Mon.-Fri. (7:30 – 5:00). If attempts to reach the examiner by telephone are unsuccessful, the examiner's supervisor, Crystal Hammond, can be reached on (571) 270-1682. The fax phone number for the organization where this application or proceeding is assigned is 571-273-8300. Information regarding the status of an application may be obtained from the Patent Application Information Retrieval (PAIR) system. Status information for published applications may be obtained from either Private PAIR or Public PAIR. Status information for unpublished applications is available through Private PAIR only. For more information about the PAIR system, see http://portal.uspto.gov/external/portal. Should you have questions on access to the Private PAIR system, contact the Electronic Business Center (EBC) at 866-217-9197 (toll-free). /BRYAN R PEREZ/Examiner, Art Unit 2838
Read full office action

Prosecution Timeline

Apr 08, 2024
Application Filed
Feb 05, 2026
Non-Final Rejection — §103 (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

1-2
Expected OA Rounds
84%
Grant Probability
98%
With Interview (+14.3%)
2y 5m
Median Time to Grant
Low
PTA Risk
Based on 712 resolved cases by this examiner. Grant probability derived from career allow rate.

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