Prosecution Insights
Last updated: August 15, 2026
Application No. 18/456,228

CHARGING DEVICE FOR NECK HANGING TWS EARPHONES

Non-Final OA §102§112
Filed
Aug 25, 2023
Priority
Aug 16, 2023 — CN 2023110382340
Examiner
PELTON, NATHANIEL R
Art Unit
Tech Center
Assignee
Shenzhen Xinzhengyu Technology Co. Ltd.
OA Round
1 (Non-Final)
75%
Grant Probability
Favorable
1-2
OA Rounds
0m
Est. Remaining
93%
With Interview

Examiner Intelligence

Grants 75% — above average
75%
Career Allowance Rate
561 granted / 748 resolved
+15.0% vs TC avg
Strong +18% interview lift
Without
With
+18.4%
Interview Lift
resolved cases with interview
Typical timeline
2y 9m
Avg Prosecution
36 currently pending
Career history
771
Total Applications
across all art units

Statute-Specific Performance

§101
1.7%
-38.3% vs TC avg
§103
56.9%
+16.9% vs TC avg
§102
20.3%
-19.7% vs TC avg
§112
12.6%
-27.4% vs TC avg
Black line = Tech Center average estimate • Based on career data from 748 resolved cases

Office Action

§102 §112
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 . Priority Receipt is acknowledged of certified copies of papers required by 37 CFR 1.55. Information Disclosure Statement The information disclosure statement (IDS) submitted on 08/25/2023 is in compliance with the provisions of 37 CFR 1.97. Accordingly, the information disclosure statement is being considered by the examiner. Claim Rejections - 35 USC § 112 The following is a quotation of 35 U.S.C. 112(b): (b) CONCLUSION.—The specification shall conclude with one or more claims particularly pointing out and distinctly claiming the subject matter which the inventor or a joint inventor regards as the invention. The following is a quotation of 35 U.S.C. 112 (pre-AIA ), second paragraph: The specification shall conclude with one or more claims particularly pointing out and distinctly claiming the subject matter which the applicant regards as his invention. Claim 1 is rejected under 35 U.S.C. 112(b) or 35 U.S.C. 112 (pre-AIA ), second paragraph, as being indefinite for failing to particularly point out and distinctly claim the subject matter which the inventor or a joint inventor (or for applications subject to pre-AIA 35 U.S.C. 112, the applicant), regards as the invention. With respect to claim 1, line 1, “TWS earphones” is unclear. Acronyms must first be spelled out with support from the specification before they can be used throughout claims. Claims 2-10 depend from claim 1 and are rejected for the same reasons. Claim Rejections - 35 USC § 102 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. Claim(s) 1-10 is/are rejected under 35 U.S.C. 102(a)(1) as being anticipated by Zou [US 2021/0368253]. With respect to claim 1, Zou discloses a charging device for neck hanging TWS earphones [Fig. 1], comprising an earphone charging control portion [Fig. 3; 152], a neck hanging piece [14], charging wires [13], and charging bases [150], wherein the earphone charging control portion is electrically connected to the neck hanging piece [151]: the charging wires are connected to the earphone charging control portion [as depicted]: and the charging bases are connected to end parts of the charging wires and provided with charging jacks matched with TWS earphones in a pluggable manner [Fig. 2]. With respect to claim 2, Zou further discloses a battery portion [1511], wherein the earphone charging control portion and the battery portion are correspondingly electrically connected to two ends of the neck hanging piece and are electrically connected to each other by the neck hanging piece [151 via 14 and 150]: there are two charging wires and two charging bases [i.e. 150 and 13 are a pair]: the two charging wires are correspondingly connected to the earphone charging control portion and the battery portion [13 is between 150 and 152]; and the two charging bases are correspondingly connected to the end parts of the two charging wires and are provided with the charging jacks, respectively [150 is between 11 and 13], With respect to claim 3, Zou further discloses wherein arc-shaped extension portions matched with outer walls of the TWS earphones are provided at upper ends of the charging jacks [14 is an arc] and a plurality of heat dissipation holes are formed in a side wall of each of the charging jacks [Fig. 4; the charging jacks are comprised of components 1200,1201,1211,1220 to create the housing with gaps/hole which is equated to allowing heat dissipation]. With respect to claim 4, Zou further discloses the neck hanging piece is a memory type steel wire and is arc-shaped as a whole [par. 0047]. With respect to claim 5, Zou further discloses wherein a projection on a side surface of the neck hanging piece is also are-shaped [i.e. the projection closer to the charging base 151 is also arc shaped] With respect to claim 6, Zou further discloses wherein the earphone charging control portion comprises a first housing [see Fig. 3, housing of 152], a micro-controller unit (MCU) mounted in the first housing [1512], a mode switching button configured to switch charging and discharging statuses of the TWS earphones [1524], a charging interface configured to supply power to the battery portion and the charging bases [1513], and a switch button configured to supply power to the battery portion and the charging bases [1523]; the switch button, the charging interface, the mode switching button, the battery portion, and the charging bases are connected to the MCU [part of 152]; the battery portion and the charging bases are connected to the charging interface and the battery portion is connected to the charging bases [i.e. all parts of 152]. With respect to claim 7, Zou further discloses wherein the charging jacks are matched with the TWS earphones in a magnetic suction manner [par. 0062]. With respect to claim 8, Zou further discloses wherein elastic silica gel layers are provided on inner walls of the charging jacks and the TWS earphones are matched with the elastic silica gel layers in a pluggable manner [1134]. With respect to claim 9, Zou further discloses wherein the TWS earphones are charged by the charging bases in a wireless charging or contact charging manner [par. 0049]. With respect to claim 10, Zou further discloses wherein the battery portion comprises a second housing and a rechargeable lithium battery located inside the second housing; the rechargeable lithium battery is electrically connected to the earphone charging control portion by the neck hanging piece; the two charging wires are correspondingly connected to side walls, facing outward, of upper ends of the first housing and the second housing; and the mode switching button, the charging interface, and the switch button are arranged on an outer wall of one side, facing outward, of the first housing [see figure 3 and the housing 152 with all buttons on the housing and internal rechargeable battery]. Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to NATHANIEL R PELTON whose telephone number is (571)270-1761. The examiner can normally be reached M-F 9am to 5pm. 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, Julian Huffman can be reached at 571-272-2147. 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. /NATHANIEL R PELTON/Primary Examiner, Art Unit 2859
Read full office action

Prosecution Timeline

Aug 25, 2023
Application Filed
Jul 22, 2026
Non-Final Rejection mailed — §102, §112 (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
75%
Grant Probability
93%
With Interview (+18.4%)
2y 9m (~0m remaining)
Median Time to Grant
Low
PTA Risk
Based on 748 resolved cases by this examiner. Grant probability derived from career allowance rate.

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