Prosecution Insights
Last updated: April 19, 2026
Application No. 18/386,199

INTERCHANGEABLE PLUG FOR A POWER ADAPTER AND METHODS FOR PROVIDING AND USING THE SAME

Non-Final OA §102
Filed
Nov 01, 2023
Examiner
LE, THANH TAM T
Art Unit
2831
Tech Center
2800 — Semiconductors & Electrical Systems
Assignee
Belkin International Inc.
OA Round
1 (Non-Final)
86%
Grant Probability
Favorable
1-2
OA Rounds
1y 11m
To Grant
99%
With Interview

Examiner Intelligence

Grants 86% — above average
86%
Career Allow Rate
1221 granted / 1413 resolved
+18.4% vs TC avg
Moderate +14% lift
Without
With
+13.8%
Interview Lift
resolved cases with interview
Fast prosecutor
1y 11m
Avg Prosecution
36 currently pending
Career history
1449
Total Applications
across all art units

Statute-Specific Performance

§101
0.1%
-39.9% vs TC avg
§103
34.3%
-5.7% vs TC avg
§102
40.9%
+0.9% vs TC avg
§112
20.4%
-19.6% vs TC avg
Black line = Tech Center average estimate • Based on career data from 1413 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 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. Claims 1-2, 6-8, 12-14 and 18-20 are rejected under 35 U.S.C. 102(a)(1) as being anticipated by Liu (9,112,326). Regarding claim 1, Liu discloses an interchangeable plug (1, FIG. 1) for a power adapter (2) comprising: a first coupling mechanism (12 and 13) raised above a rear surface of the interchangeable plug and configured to be releasably coupled to a first engagement mechanism (241 and 242) of the power adapter when the interchangeable plug is mounted on the power adapter; and a second coupling mechanism (16, FIG. 1) raised above the rear surface of the interchangeable plug and configured to be releasably coupled to a second engagement mechanism (27) of the power adapter when the interchangeable plug is mounted on the power adapter, wherein: the first coupling mechanism and the second coupling mechanism are separate and located on opposite ends of the interchangeable plug. Regarding claim 2, a first hook (13, FIG. 1) of the first coupling mechanism is received by a first latch (241) of the first engagement mechanism of the power adapter. Regarding claim 6, the first engagement mechanism and the second engagement mechanism of the power adapter are located at opposite sides of adapter prongs of the power adapter (FIG. 1). Regarding claims 7-8, 12-14 and 18-20, the features in the method claims identical to those of the apparatus claims. Therefore, a method for providing an interchangeable plug for a power adapter alone is not a patentable feature. Claims 1, 3, 7, 9, 13 and 15 are rejected under 35 U.S.C. 102(a)(1) as being anticipated by Chien (10,996,695). Regarding claim 1, Chien discloses an interchangeable plug (20, FIG. 4) for a power adapter (10) comprising: a first coupling mechanism (27, FIG. 3) raised above a rear surface of the interchangeable plug and configured to be releasably coupled to a first engagement mechanism (29, FIG. 4) of the power adapter when the interchangeable plug is mounted on the power adapter; and a second coupling mechanism (other 27 of other side, FIG. 3) raised above the rear surface of the interchangeable plug and configured to be releasably coupled to a second engagement mechanism (other 29 of other side, FIG. 4) of the power adapter when the interchangeable plug is mounted on the power adapter, wherein: the first coupling mechanism and the second coupling mechanism are separate and located on opposite ends of the interchangeable plug. Regarding claim 3, a second hook (27, FIG. 3) of the second coupling mechanism is movable to be received or released by a second latch (29, FIG. 4) of the second engagement mechanism along a single direction along which adapter prongs of the power adapter extend when the adapter prongs are in a folded position; the second hook of the second coupling mechanism is movable toward or away from the first coupling mechanism to be received or released by the second latch of the second engagement mechanism; the second latch of the second engagement mechanism is movable to receive or release the second hook of the second coupling mechanism along the single direction. Regarding claims 7, 9, 13 and 15, the features in the method claims identical to those of the apparatus claims. Therefore, a method for providing an interchangeable plug for a power adapter alone is not a patentable feature. Claims 1, 4-5, 7, 10-11, 13 and 16-17 are rejected under 35 U.S.C. 102(a)(1) as being anticipated by Wang (7,300,297). Regarding claim 1, Wang discloses an interchangeable plug (30, FIG. 7) for a power adapter (20) comprising: a first coupling mechanism (323, FIG. 7) raised above a rear surface of the interchangeable plug and configured to be releasably coupled to a first engagement mechanism (261) of the power adapter when the interchangeable plug is mounted on the power adapter; and a second coupling mechanism (33 and a hole, not labeled, FIG. 7) raised above the rear surface of the interchangeable plug and configured to be releasably coupled to a second engagement mechanism (28) of the power adapter when the interchangeable plug is mounted on the power adapter, wherein: the first coupling mechanism and the second coupling mechanism are separate and located on opposite ends of the interchangeable plug. Regarding claim 4, adapter prong contacts (243, FIG. 3) configured to be electronically coupled to adapter prongs (24) of the power adapter when the interchangeable plug is mounted on the power adapter and plug prongs (325, FIG. 3) electronically coupled to the adapter prong contacts (FIG. 8). Regarding claim 5, when the interchangeable plug comprises one alignment structure (321, FIG. 7), the one alignment structure is raised from the rear surface of the interchangeable plug and configured to be received in an adapter-prong channel (21) of the power adapter for the adapter prongs when the interchangeable plug is mounted on the power adapter. Regarding claims 7, 10-11, 13 and 16-17, the features in the method claims identical to those of the apparatus claims. Therefore, a method for providing an interchangeable plug for a power adapter alone is not a patentable feature. Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to THANH TAM T LE whose telephone number is (571)272-2094. The examiner can normally be reached 9AM-6PM. 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, Abdul Riyami can be reached at 571-270-3119. 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. /THANH TAM T LE/Primary Examiner, Art Unit 2831 01/16/26 thanh-tam.le@uspto.gov
Read full office action

Prosecution Timeline

Nov 01, 2023
Application Filed
Jan 16, 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
86%
Grant Probability
99%
With Interview (+13.8%)
1y 11m
Median Time to Grant
Low
PTA Risk
Based on 1413 resolved cases by this examiner. Grant probability derived from career allow rate.

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