Prosecution Insights
Last updated: April 19, 2026
Application No. 18/823,017

Hinge Mechanism and Electronic Device

Non-Final OA §102
Filed
Sep 03, 2024
Examiner
HAUGHTON, ANTHONY MICHAEL
Art Unit
2841
Tech Center
2800 — Semiconductors & Electrical Systems
Assignee
Huawei Technologies Co., Ltd.
OA Round
1 (Non-Final)
80%
Grant Probability
Favorable
1-2
OA Rounds
2y 4m
To Grant
99%
With Interview

Examiner Intelligence

Grants 80% — above average
80%
Career Allow Rate
816 granted / 1018 resolved
+12.2% vs TC avg
Strong +22% interview lift
Without
With
+22.4%
Interview Lift
resolved cases with interview
Typical timeline
2y 4m
Avg Prosecution
35 currently pending
Career history
1053
Total Applications
across all art units

Statute-Specific Performance

§103
48.0%
+8.0% vs TC avg
§102
41.9%
+1.9% vs TC avg
§112
8.2%
-31.8% vs TC avg
Black line = Tech Center average estimate • Based on career data from 1018 resolved cases

Office Action

§102
DETAILED ACTION 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. (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) 20 is/are rejected under 35 U.S.C. 102(a)(1) as being anticipated by Park (12,032,417). Regarding Claim 20: Park teaches a hinge mechanism comprising: a main shaft (350) comprising a first side (fig. 5) and a second side (fig. 5) opposite the first side (fig. 5); a first swing arm (310) disposed on the first side (fig. 5) and rotatably connected to the main shaft (figs. 4-11); a second swing arm (320) disposed on the second side (fig. 5) rotatably connected to the main shaft (figs. 4-11); and a synchronization assembly (components included with the gearing system shown in fig. 5) located between the first swing arm and the second swing arm (fig. 5) along an axial direction of the hinge mechanism (fig. 5), comprising a first gear assembly (223 with 222a and 222) and a second gear assembly (other 223 with 221a and 221), and configured to synchronously rotate the first gear assembly (fig. 5) and the second gear assembly (fig. 5) towards each other during a folding process of an electronic device (figs. 4-11), and synchronously rotate the first gear assembly and the second gear assembly away from each other during an unfolding process of the electronic device (figs. 4-11). Allowable Subject Matter Claims 1-19 are allowed. The following is a statement of reasons for the indication of allowable subject matter: Claims 1-19 are considered to be allowable because the prior art of record neither anticipates nor renders obvious the limitations of the base claims 1 and 18. Claim 1 includes a first gear assembly comprising: a first gear member comprising: a first gear comprising a first gear surface and a first end part, wherein a first axis of the first gear is parallel to and does not coincide with a second axis along which the first swing arm rotates around the main shaft; and a first connection part located on the first end part and facing the first swing arm; and a first connecting rod slidably connected to the first connection part and rotatably connected to the first swing arm; and a second gear assembly comprising: a second gear member comprising: a second gear comprising a second gear surface and a second end part, wherein the second gear surface is engaged with the first gear surface, and wherein a third axis of the second gear is parallel to and does not coincide with a fourth axis along which the second swing arm rotates around the main shaft; and a second connection part located on the second end part and facing the second swing arm; and a second connecting rod slidably connected to the second connection part and rotatably connected to the second swing arm in combination with all other elements of the claim. Claims 2-17 are all dependent upon claim 1 and are considered to be allowable at least for the same reasons as claim 1. Claim 18 includes a synchronization assembly located between the first swing arm and the second swing arm along an axial direction of the hinge mechanism, wherein the synchronization assembly comprises: a first gear assembly comprising: a first gear member comprising: a first gear comprising a first gear surface and a first end part, wherein a first axis of the first gear is parallel to and does not coincide with a second axis along which the first swing arm rotates around the main shaft; and a first connection part located on the first end part and facing the first swing arm; and a first connecting rod slidably connected to the first connection part and rotatably connected to the first swing arm; and a second gear assembly comprising: a second gear member comprising: a second gear comprising a second gear surface and second end part, wherein the second gear surface is engaged with the first gear surface, and wherein a third axis of the second gear is parallel to and does not coincide with a fourth axis along which the second swing arm rotates around the main shaft; and a second connection part located on the second end part and facing the second swing arm; and a second connecting rod slidably connected to the second connection part and rotatably connected to the second swing arm in combination with all other elements of the claim. Claim 19 is dependent upon claim 18 and is considered to be allowable at least for the same reasons as claim 18. Conclusion The prior art made of record and not relied upon is considered pertinent to applicant's disclosure. The prior art cited in the PTO-892 notice of references cited is all related in that they are in the field of hinging devices for portable electronic devices with a foldable or flexible display. Any inquiry concerning this communication or earlier communications from the examiner should be directed to ANTHONY MICHAEL HAUGHTON whose telephone number is (571)272-9087. The examiner can normally be reached M-F 9a-5p. 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, Imani Hayman can be reached at 571-270-5528. 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. /ANTHONY M HAUGHTON/Primary Examiner, Art Unit 2841
Read full office action

Prosecution Timeline

Sep 03, 2024
Application Filed
Sep 27, 2024
Response after Non-Final Action
Mar 19, 2026
Non-Final Rejection — §102
Apr 08, 2026
Response Filed

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
80%
Grant Probability
99%
With Interview (+22.4%)
2y 4m
Median Time to Grant
Low
PTA Risk
Based on 1018 resolved cases by this examiner. Grant probability derived from career allow rate.

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