Prosecution Insights
Last updated: April 19, 2026
Application No. 18/467,147

HIGH FREQUENCY WIRELESS POWER TRANSFER SYSTEM, TRANSMITTER AND RECEIVER THEREFOR

Non-Final OA §102
Filed
Sep 14, 2023
Examiner
NGUYEN, KHANH V
Art Unit
2843
Tech Center
2800 — Semiconductors & Electrical Systems
Assignee
Solace Power Inc.
OA Round
1 (Non-Final)
94%
Grant Probability
Favorable
1-2
OA Rounds
2y 3m
To Grant
96%
With Interview

Examiner Intelligence

Grants 94% — above average
94%
Career Allow Rate
1105 granted / 1181 resolved
+25.6% vs TC avg
Minimal +2% lift
Without
With
+1.9%
Interview Lift
resolved cases with interview
Typical timeline
2y 3m
Avg Prosecution
27 currently pending
Career history
1208
Total Applications
across all art units

Statute-Specific Performance

§101
0.7%
-39.3% vs TC avg
§103
28.8%
-11.2% vs TC avg
§102
39.6%
-0.4% vs TC avg
§112
27.2%
-12.8% vs TC avg
Black line = Tech Center average estimate • Based on career data from 1181 resolved cases

Office Action

§102
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 . Specification The lengthy specification has not been checked to the extent necessary to determine the presence of all possible minor errors. Applicant’s cooperation is requested in correcting any errors of which applicant may become aware in the specification. Claim Objections Claims 4 and 5 are objected to because of the following informalities: Claim 4, line 3, “the inverter” should correctly be “the load independent inverter”. Claim 5, line 1, “the amplifier” should correctly be “the switched-mode ZVS amplifier”. Appropriate correction is required. Claim Rejections - 35 USC § 102 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 (i.e., changing from AIA to pre-AIA ) 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. 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. (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 is/are rejected under 35 U.S.C. 102(a)(2) as being anticipated by Aldhaher et al. (applicant’s admitted IDS, 10/30/23), hereafter called ALDHAHER. Regarding claim 1, ALDHAHER (Fig. 2) discloses a transmitter comprising: a load independent inverter comprising a switched mode zero-voltage switching (ZVS) amplifier, see section III; and a transmitter coil (L3) or electrodes connected to the load independent inverter, the transmitter coil or electrodes configured to transfer power to a receiver via magnetic or electric field coupling, see section I. Claim(s) 1-4 and 20 is/are rejected under 35 U.S.C. 102(a)(1) as being anticipated by Riehl et al. (20170302110), hereafter called RIEHL. Regarding claim 1, RIEHL (Fig. 2) discloses a transmitter comprising: a load independent inverter (3) comprising a switched mode zero-voltage switching (ZVS) amplifier, see para. [0036]; and a transmitter coil (LCCS of Fig. 3) or electrodes connected to the load independent inverter (3) configured to transfer power to a receiver via magnetic or electric field coupling (10 and 12 of Fig. 2). Regarding claim 2, wherein the transmitter (1) is non-resonant or not self- resonant, see inductor (10 of Figure 2). Regarding claim 3, wherein the transmitter coil is configured to transfer power via magnetic field coupling, or wherein the transmitter electrodes are configured to transfer power via electric field coupling (coils (10 and 12) of Figure 2). Regarding claim 4, wherein the transmitter further comprises a power source input to voltage source (2) and, wherein the transmitter further comprises a power converter (2) configured to convert a power signal from the power source prior to receipt by the load independent inverter (3). Regarding claim 20, RIEHL (Figs, 2 and 3) discloses a wireless power system (100) comprising: a transmitter (1) comprising: a load independent inverter (3) comprising a switched mode zero-voltage switching (ZVS) amplifier, see [0036]; and a transmitter coil (LCCS of Fig. 3) or electrodes connected to the load independent inverter, the transmitter coil or electrodes configured to transfer power to a receiver (11) via magnetic or electric field coupling (10 and 12 of Fig. 2); and the receiver inherently seen comprising: a receiver coil or electrodes configured to extract power from the receiver via magnetic or electric field coupling. Allowable Subject Matter Claims 5-19 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: Regarding claims 5-19, prior art(s) does not disclose the switched-mode ZVS amplifier comprises: a pair of circuits arranged in parallel, each circuit comprising: at least a transistor and at least a capacitor arranged in parallel; and at least an inductor arranged in series with the transistor and capacitor; only one ZVS inductor connected to the pair of circuits; and at least one capacitor connected to the ZVS inductor and arranged in series with at least an inductor and at least a resistor. Conclusion The prior art made of record and not relied upon is considered pertinent to applicant's disclosure. The additional reference(s) cited in PTO-892 show further analogous prior art circuitry. Any inquiry concerning this communication or earlier communications from the examiner should be directed to Khanh V. Nguyen whose telephone number is (571) 272-1767. The examiner can normally be reached from 8:30 AM – 5:00 PM EST. Examiner interviews are available via telephone 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, LINDGREN BALTZELL ANDREA can be reached on (571) 272-5918. The fax phone numbers 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 lnformation 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://pair-direct.uspto.gov. Should you have questions on access to the Private PAIR system, contact the Electronic Business Center (EBC) at 866-217-9197 (toll-free). If you would like assistance from a USPTO Customer Service Representative or access to the automated information system, call 800-786-9199 (IN USA OR CANADA) or 571-272-1000. /KHANH V NGUYEN/ Primary Examiner, Art Unit 2843
Read full office action

Prosecution Timeline

Sep 14, 2023
Application Filed
Jan 23, 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

1-2
Expected OA Rounds
94%
Grant Probability
96%
With Interview (+1.9%)
2y 3m
Median Time to Grant
Low
PTA Risk
Based on 1181 resolved cases by this examiner. Grant probability derived from career allow rate.

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