Prosecution Insights
Last updated: October 02, 2026
Application No. 18/919,442

SELF-POWERED ELECTROACUPUNCTURE NEEDLES AND APPLICATIONS THEREOF

Non-Final OA §102
Filed
Oct 18, 2024
Priority
Nov 30, 2023 — provisional 63/604,200
Examiner
MALAMUD, DEBORAH LESLIE
Art Unit
Tech Center
Assignee
City University of Hong Kong
OA Round
1 (Non-Final)
78%
Grant Probability
Favorable
1-2
OA Rounds
1y 3m
Est. Remaining
88%
With Interview

Examiner Intelligence

Grants 78% — above average
78%
Career Allowance Rate
685 granted / 876 resolved
+18.2% vs TC avg
Moderate +10% lift
Without
With
+9.6%
Interview Lift
resolved cases with interview
Typical timeline
3y 3m
Avg Prosecution
38 currently pending
Career history
906
Total Applications
across all art units

Statute-Specific Performance

§101
9.0%
-31.0% vs TC avg
§103
31.4%
-8.6% vs TC avg
§102
45.0%
+5.0% vs TC avg
§112
11.9%
-28.1% vs TC avg
Black line = Tech Center average estimate • Based on career data from 876 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 . Claim Objections Claim 11 is objected to because of the following informalities: claim 11 requires “the conduct needle” in lines 1-2. This appears to be a typo, and should read “the conductive needle”. 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. Claims 1-16 are rejected under 35 U.S.C. 102(a)(1) as being anticipated by Franke et al (U.S. 2020/0188660). Franke discloses (par. 0224) a conductive needle; and a triboelectric nanogenerator (TENG) coating on at least a portion of the conductive needle (par. 0210), comprising: a triboelectric layer (par. 0191) configured to accept electrons; and an electron-providing layer configured to donate electrons; wherein the TENG is positioned on the conductive needle with the triboelectric layer in contact with the needle such that electron transfer is induced between the triboelectric layer and the electron-providing layer when these layers are compressed (par. 0588), generating a therapeutic alternating current at a frequency range of 0.1-10 Hz (par. 0572) in the needle for delivering electroacupuncture treatment. Regarding claim 2, Franke discloses (par. 0372) a head of the conductive needle is a coiled head. Regarding claim 3, Franke discloses (par. 0213) the TENG further comprises an insulating layer and a protective layer. Regarding claim 4, Franke discloses (par. 0237) the insulating layer is positioned between the triboelectric layer and the electron-providing layer and the protective layer is positioned on the electron-providing layer. Regarding claim 5, Franke discloses (par. 0368-0369) the triboelectric layer is a flexible material doped with 1-5% of conductive nanoparticles, wherein the conductive nanoparticles form a conductive mesh within the flexible material. Regarding claim 6, Franke discloses (par. 0544) the flexible material is at least polyimide. Regarding claim 7, Franke discloses (par. 0383) the conductive nanoparticles are at least multiwalled carbon nanotubes. Regarding claim 8, Franke discloses (par. 0191) the triboelectric layer has a porous microstructure with a porosity ranging from 5-50%, configured for increasing the surface area for electron exchange. Regarding claim 9, Franke discloses (par. 0247) the flexible material is doped with 2% of the conductive nanoparticles. Regarding claim 10, Franke discloses (par. 0369) the electron-providing layer is composed of a conductive metal selected from one or more of Cu, Ag, or Au. Regarding claim 11, Franke discloses (par. 0369) the conduct needle comprises a material selected from stainless-steel, gold plaited stainless steel, gold, silver, or a combination thereof. Regarding claim 12, Franke discloses (par. 0500) a power management unit configured to regulate and store electrical energy generated by the TENG; a control unit configured to adjust stimulation parameters of the needle; a display mechanism for providing feedback on treatment status; an external force supplier configured to supply an external force to the TENG; and a sensor unit for monitoring treatment parameters (par. 0501). Regarding claim 13, Franke discloses (par. 0525) a data storage and transfer module configured to record treatment data and the stimulation parameters. Regarding claim 14, Franke discloses (par. 0615) an external power source. Regarding claim 15, Franke discloses (par. 0500) a communication interface configured to allow the system to communicate with other medical devices or a central computer system for integrated patient care. Regarding claim 16, Franke discloses (par. 0588) the external force supplier comprises a manual force applied by a healthcare provider, wherein the manual force, comprising but not limited to pinching, rotating, lifting-and-thrusting, or pressing the needle, compresses the TENG to generate the electrical current necessary for electroacupuncture treatment. Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to DEBORAH L MALAMUD whose telephone number is (571)272-2106. The examiner can normally be reached Mon - Fri 1:00-9:30 Eastern. 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, Unsu Jung can be reached at (571) 272-8506. 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. /DEBORAH L MALAMUD/Primary Examiner, Art Unit 3792
Read full office action

Prosecution Timeline

Oct 18, 2024
Application Filed
Aug 13, 2026
Non-Final Rejection mailed — §102 (current)

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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
78%
Grant Probability
88%
With Interview (+9.6%)
3y 3m (~1y 3m remaining)
Median Time to Grant
Low
PTA Risk
Based on 876 resolved cases by this examiner. Grant probability derived from career allowance rate.

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