Prosecution Insights
Last updated: April 19, 2026
Application No. 18/643,055

ELECTROMAGNETIC CONTACTOR

Non-Final OA §102§Other
Filed
Apr 23, 2024
Examiner
TALPALATSKI, ALEXANDER
Art Unit
2837
Tech Center
2800 — Semiconductors & Electrical Systems
Assignee
Fuji Electric Co. Ltd.
OA Round
1 (Non-Final)
72%
Grant Probability
Favorable
1-2
OA Rounds
2y 7m
To Grant
83%
With Interview

Examiner Intelligence

Grants 72% — above average
72%
Career Allow Rate
598 granted / 831 resolved
+4.0% vs TC avg
Moderate +11% lift
Without
With
+11.1%
Interview Lift
resolved cases with interview
Typical timeline
2y 7m
Avg Prosecution
39 currently pending
Career history
870
Total Applications
across all art units

Statute-Specific Performance

§101
0.9%
-39.1% vs TC avg
§103
48.4%
+8.4% vs TC avg
§102
29.9%
-10.1% vs TC avg
§112
17.5%
-22.5% vs TC avg
Black line = Tech Center average estimate • Based on career data from 831 resolved cases

Office Action

§102 §Other
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. Claim(s) 1-3 and 5-8 is/are rejected under 35 U.S.C. 102a1 as being anticipated by Zhou (US 11735386). In re claim 1, Zhou, in figures 1-18, discloses an electromagnetic contactor comprising: a container (100,130,150) made of resin (150 is made of resin, see figure 12); a pair of fixed contact pieces (110) fixed to the container in a penetrating manner and on one end side of each of which, the one end side being located inside the container, a fixed contact is formed (as seen in figure 15); a movable contact piece (230) on both end sides of which movable contacts facing the fixed contacts are formed (as best seen in figures 2-4), the movable contact piece being configured to, when the movable contact piece is displaced in a depth direction in the container, cause a contact unit including the movable contacts and the fixed contacts to be opened or closed (as seen in figures 2-4); a fixed yoke (120) arranged between the pair of fixed contact pieces and at least a portion of which is held in a skeleton (150) forming the container; and a movable yoke (240) disposed on the movable contact piece and opposed to the fixed yoke, wherein the fixed yoke and the movable yoke attract each other caused by a magnetic circuit being formed about an axis in a conduction direction in which current flows in the movable contact piece when the contact unit is closed (inherent functionality of the shown structure). In re claim 2, Zhou, in figures 1-18, discloses on the skeleton, an opening portion to cause a portion of the fixed yoke to be exposed is formed (as seen in figures 12-14). In re claim 3, Zhou, in figures 1-18, discloses that the fixed yoke is formed in a flat plate shape extending in a direction orthogonal to the movable contact piece when viewed from a depth direction and includes: an embedded portion embedded in the skeleton; and an exposed portion (portion that is not embedded) projecting from the opening portion (as best seen in figure 14). In re claim 5, Zhou, in figures 1-18, discloses that the fixed yoke has the embedded portion closely adhering to an inner surface of the skeleton (as best seen in figure 14). In re claim 6, Zhou, in figures 1-18, discloses that the movable yoke is formed in a U-shape (this is shown in several figures, see figure 9 for example) opening to the fixed yoke when the movable contact piece is viewed from a conduction direction. In re claims 7-8, In accordance to MPEP 2113, the method of forming the device is not germane to the issue of patentability of the device itself. Therefore, this limitation has not been given patentable weight. Please note that even though product-by-process claims are limited by and defined by the process, determination of patentability is based on the product itself. The patentability of a product, i.e container and yoke, does not depend on its method of production, i.e. process of applying a coating or using insert molding. In re Thorpe, 227 USPQ 964, 966 (Federal Circuit 1985). Allowable Subject Matter Claim 4 is objected to as being dependent upon a rejected base claim, but would be allowable if rewritten in independent form including all of the limitations of the base claim and any intervening claims. Conclusion The prior art made of record and not relied upon is considered pertinent to applicant's disclosure. A list of pertinent prior art is attached in form PTO-892. Any inquiry concerning this communication or earlier communications from the examiner should be directed to Alexander Talpalatski whose telephone number is (571)270-3908. The examiner can normally be reached 10 AM - 6 PM PT. 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, Shawki Ismail can be reached at 5712723985. 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. /Alexander Talpalatski/Primary Examiner, Art Unit 2837
Read full office action

Prosecution Timeline

Apr 23, 2024
Application Filed
Dec 27, 2025
Non-Final Rejection — §102, §Other (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12597576
ELECTROMAGNETIC RELAY
2y 5m to grant Granted Apr 07, 2026
Patent 12567550
CIRCUIT BREAKERS
2y 5m to grant Granted Mar 03, 2026
Patent 12555732
ELECTROMECHANICAL ROTARY LATCH FOR USE IN CURRENT INTERRUPTION DEVICES
2y 5m to grant Granted Feb 17, 2026
Patent 12549051
ROTARY ELECTRIC MACHINE
2y 5m to grant Granted Feb 10, 2026
Patent 12548702
MAGNET ORIENTATION DEVICE AND MAGNET
2y 5m to grant Granted Feb 10, 2026
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
72%
Grant Probability
83%
With Interview (+11.1%)
2y 7m
Median Time to Grant
Low
PTA Risk
Based on 831 resolved cases by this examiner. Grant probability derived from career allow rate.

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