Prosecution Insights
Last updated: April 17, 2026
Application No. 18/718,995

CONVERTER FOR POWER SUPPLY OF MEDICAL DEVICES

Non-Final OA §103
Filed
Jun 12, 2024
Examiner
NG, JONATHAN K
Art Unit
3619
Tech Center
3600 — Transportation & Electronic Commerce
Assignee
unknown
OA Round
1 (Non-Final)
36%
Grant Probability
At Risk
1-2
OA Rounds
4y 0m
To Grant
49%
With Interview

Examiner Intelligence

Grants only 36% of cases
36%
Career Allow Rate
110 granted / 309 resolved
-16.4% vs TC avg
Moderate +14% lift
Without
With
+13.7%
Interview Lift
resolved cases with interview
Typical timeline
4y 0m
Avg Prosecution
40 currently pending
Career history
349
Total Applications
across all art units

Statute-Specific Performance

§101
36.0%
-4.0% vs TC avg
§103
41.6%
+1.6% vs TC avg
§102
9.9%
-30.1% vs TC avg
§112
8.7%
-31.3% vs TC avg
Black line = Tech Center average estimate • Based on career data from 309 resolved cases

Office Action

§103
DETAILED ACTION Claims 1-13 are currently pending and have been examined. 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 Objections Claims 1-13 are objected to because of the following informalities: the claim limitation “convertor” is misspelled. Appropriate correction is required. 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. The factual inquiries for establishing a background for determining obviousness under 35 U.S.C. 103 are summarized as follows: 1. Determining the scope and contents of the prior art. 2. Ascertaining the differences between the prior art and the claims at issue. 3. Resolving the level of ordinary skill in the pertinent art. 4. Considering objective evidence present in the application indicating obviousness or nonobviousness. Claims 1-4, 7, & 14-15 are rejected under 35 U.S.C. 103 as being unpatentable over Gong (CN111446885A) in view of Wu (CN110572073A). As per claim 1, Gong teaches a convertor of mechanical energy for converting the mechanical energy of the movement of the heart muscle into electrical energy comprising: a first flexible block (Fig. 1, 1), a second flexible block (Fig. 1, 3), wherein a first and a second end of a plurality of extendable elements (Fig. 1, 2) are immovably connected on the first and on the second flexible blocks (Fig. 1), wherein each of the plurality of extendable elements (Fig. 1, 2) comprises a layer of triboelectric material (pg. 3), wherein each of the plurality of the extendable elements comprises a triboelectric spiral structure wherein the triboelectric spiral structure comprises a plurality of twisted elongated elements (Fig. 1, 2; the elements are entangled)(pg. 4: spiral structure). Gong does not expressly teach a hollow portion, wherein each of the plurality of the extendable elements comprises a triboelectric structure that is mounted within the hollow portion, wherein the triboelectric structure comprises a plurality of elongated elements that are movable within the hollow portion of the extendable elements. Wu, however, teaches to a friction power generator containing an interior space with a triboelectric with several layers (fig. 1 & 2)(pg. 9). The triboelectric layers change shape and move based on an external force (pg. 9). It would have been obvious for one of ordinary skill in the art before the effective filing date of the claimed invention to combine the aforementioned features in Wu with Gong based on the motivation of improve the generating efficiency and output capacity of the nano generator (abstract). As per claim 2, Gong and Wu teach the convertor of claim 1. Gong teaches wherein each of the plurality of the elongated elements has the shape of a rod and wherein each of the elongated elements comprises a triboelectric material layer and a conducting material layer (Fig. 1; pg. 4, 10-11: fibers in shape of bundle with triboelectric and conducting layers). As per claim 3, Gong and Wu teach the convertor of claim 1. Gong teaches wherein the triboelectric layer of the extendable elements and the triboelectric layer of the elongated elements come in direct contact by movement (pg. 10: layers of filament move separately to generate friction and convert mechanical energy to electrical). As per claim 4, Gong and Wu teach the convertor of claim 1. Gong teaches wherein the plurality of twisted elongated elements consists of three rods (pg. 10: plurality of fibers). As per claim 7, Gong and Wu teach the convertor of claim 1. Gong teaches wherein each of the plurality of extendable elements has a cylindrical shape (Fig. 1; pg. 4, 10-11: fibers in shape of bundle with triboelectric and conducting layers). As per claim 14, Gong and Wu teach the convertor of claim 1. Gong teaches use of the convertor of claim 1 for converting the mechanical energy of the movement of an organ of the human body into electrical energy (pg. 10: layers of filament move separately to generate friction and convert mechanical energy to electrical in human body). As per claim 15, Gong and Wu teach the convertor of claim 14. Gong teaches with a system comprising a voltage stabilizer and an accumulator, configured to produce electrical power derived by the contraction and the expansion of the heart muscle of a human body (pg. 10: layers of filament move separately to generate friction and convert mechanical energy to electrical in human body; capacitor is charged using the energy generated). Prior Art Rejection All of the cited references fail to expressly teach or suggest, either alone or in combination, the features found within dependent claims 5-6 & 8-13. The most relevant prior art of record includes: Gong (WO2021237908) teaches to a flexible hybrid generator, a preparation method therefor and the use thereof, and a flexible self-charging device. The flexible hybrid generator comprises an upper electrode layer, a lower electrode layer, and multiple power-generating fibers with one end connected to the upper electrode layer and the other end connected to the lower electrode layer. Wu (CN110572073A) teaches to a hybrid friction nano-generator. The hybrid friction nano-generator comprises an insulating package layer, a grounding shield layer, an insulating layer, a first conductive element, a first friction layer placed on the lower surface of the first conductive element in a contact manner, a second conductive element, a second friction layer placed on the upper surface of the second conductive element in a contact manner, and a third friction layer located between the first friction layer and the second friction layer. Brenner (US9259580) teaches to a system for harnessing natural power of cardiac muscle movement using a piezoelectric energy converter. Further, the disclosure relates to piezoelectric kits, medical procedures and methods of deployment inside and extraction from a mammal heart. In another aspect the invention relates to piezoelectric energy converters. Conclusion The prior art made of record and not relied upon is considered pertinent to applicant's disclosure. Park (US 20200147398) teaches to a heart pacemaker according to the present invention includes a generator configured to generate nonlinear electrical energy using a friction element and an energy harvester configured to sequentially store the generated nonlinear electrical energy in multi-stage multiple energy storages and supply the electrical energy stored in the multiple energy storages. Any inquiry concerning this communication or earlier communications from the examiner should be directed to Jonathan K Ng whose telephone number is (571)270-7941. The examiner can normally be reached M-F 8 AM - 5 PM. 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, Anita Coupe can be reached at 571-270-7949. 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. /Jonathan Ng/ Primary Examiner, Art Unit 3619
Read full office action

Prosecution Timeline

Jun 12, 2024
Application Filed
Feb 03, 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
36%
Grant Probability
49%
With Interview (+13.7%)
4y 0m
Median Time to Grant
Low
PTA Risk
Based on 309 resolved cases by this examiner. Grant probability derived from career allow rate.

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