Prosecution Insights
Last updated: August 15, 2026
Application No. 18/992,527

ROTOR CORE AND ROTOR

Non-Final OA §102§103
Filed
Jan 08, 2025
Priority
Apr 04, 2023 — CN 202320727127.8 +1 more
Examiner
DESAI, NAISHADH N
Art Unit
Tech Center
Assignee
Jing-Jin Electric Technologies Co. Ltd.
OA Round
1 (Non-Final)
82%
Grant Probability
Favorable
1-2
OA Rounds
11m
Est. Remaining
91%
With Interview

Examiner Intelligence

Grants 82% — above average
82%
Career Allowance Rate
910 granted / 1111 resolved
+21.9% vs TC avg
Moderate +9% lift
Without
With
+8.8%
Interview Lift
resolved cases with interview
Typical timeline
2y 6m
Avg Prosecution
24 currently pending
Career history
1125
Total Applications
across all art units

Statute-Specific Performance

§101
1.0%
-39.0% vs TC avg
§103
60.7%
+20.7% vs TC avg
§102
25.7%
-14.3% vs TC avg
§112
12.0%
-28.0% vs TC avg
Black line = Tech Center average estimate • Based on career data from 1111 resolved cases

Office Action

§102 §103
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 statements (IDS’s) submitted on 01/08/2025 and 04/08/2025 are in compliance with the provisions of 37 CFR 1.97. Accordingly, the information disclosure statements are being considered by the examiner. 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) 1-5,10-13 are rejected under 35 U.S.C. 102(a1) as being anticipated by Ota et al. (JP 2001157395). Regarding claim 1, Ota et al. disclose: An rotor core (7), comprising: rotor laminations (abstract) that include magnet slots (4) and magnet-fixation holes (5) that are located at a side of the magnet slots; and magnets (8) located inside the magnet slots (4), wherein the magnet-fixation holes (5) are configured to be pushed and deformed toward the magnet slots to press and fix the magnets (Figs 5,7, abstract, paras 5,11). Regarding claim 2/1, Ota et al. disclose wherein the magnet-fixation holes (5) are located at one side of the magnet slots (4). Regarding claim 3/1, Ota et al. disclose wherein the magnet-fixation holes (5, Fig 7) are located at both sides of the magnet slots (4). Regarding claim 4/1, Ota et al. disclose wherein the magnet-fixation holes (5) are circular magnet-fixation holes or elliptical magnet-fixation holes (para 12). Regarding claim 5/1, Ota et al. disclose wherein the magnet-fixation holes (5) are through holes penetrating the rotor laminations (Figs 7-8). Regarding claim 10/1, Ota et al. disclose a rotor comprising the rotor core according to claim 1 (para 11, abstract). Regarding claim 11/2, Ota et al. disclose wherein the magnet-fixation holes (5) are through holes penetrating the rotor laminations (Figs 7-8). Regarding claim 12/3, Ota et al. disclose wherein the magnet-fixation holes (5) are through holes penetrating the rotor laminations (Figs 7-8). Regarding claim 13/4, Ota et al. disclose wherein the magnet-fixation holes (5) are through holes penetrating the rotor laminations (Figs 7-8). Claim Rejections - 35 USC § 103 The following is a quotation of 35 U.S.C. 103 which forms the basis for all obviousness rejections set forth in this Office action: A patent for a claimed invention may not be obtained, notwithstanding that the claimed invention is not identically disclosed as set forth in section 102, if the differences between the claimed invention and the prior art are such that the claimed invention as a whole would have been obvious before the effective filing date of the claimed invention to a person having ordinary skill in the art to which the claimed invention pertains. Patentability shall not be negated by the manner in which the invention was made. The factual inquiries for establishing a background for determining obviousness under 35 U.S.C. 103 are summarized as follows: 1. Determining the scope and contents of the prior art. 2. Ascertaining the differences between the prior art and the claims at issue. 3. Resolving the level of ordinary skill in the pertinent art. 4. Considering objective evidence present in the application indicating obviousness or nonobviousness. This application currently names joint inventors. In considering patentability of the claims the examiner presumes that the subject matter of the various claims was commonly owned as of the effective filing date of the claimed invention(s) absent any evidence to the contrary. Applicant is advised of the obligation under 37 CFR 1.56 to point out the inventor and effective filing dates of each claim that was not commonly owned as of the effective filing date of the later invention in order for the examiner to consider the applicability of 35 U.S.C. 102(b)(2)(C) for any potential 35 U.S.C. 102(a)(2) prior art against the later invention. Claim(s) 6, 7, 14-19 are rejected under 35 U.S.C. 103 as being unpatentable over Ota et al. (JP 2001157395) in view of Gilde (US 20230246501). Regarding claim 6/1, Ota et al. disclose the invention as discussed above, except wherein the magnet-fixation holes are blind holes, and are located on one side face of the rotor laminations. Gilde teaches a device having blind holes (para 6). Therefore, it would have been obvious to a person having ordinary skill in the art before the effective filing of the invention to modify Ota et al. wherein the magnet-fixation holes are blind holes, and are located on one side face of the rotor laminations, as Gilde teaches the use of blind holes. The motivation to do so it would permit one to collect any debris or foreign materials (para 6 of Gilde). Regarding claim 7/1, Ota et al. disclose the invention as discussed above, except wherein the magnet-fixation holes are blind holes, and are located on both end faces of the rotor laminations. Gilde teaches a device having blind holes (para 6). Therefore, it would have been obvious to a person having ordinary skill in the art before the effective filing of the invention to modify Ota et al. wherein the magnet-fixation holes are blind holes, and are located on both end faces of the rotor laminations, as Gilde teaches the use of blind holes. The motivation to do so it would permit one to collect any debris or foreign materials (para 6 of Gilde). Regarding claim 14/2, Ota et al. disclose the invention as discussed above, except wherein the magnet-fixation holes are blind holes, and are located on one side face of the rotor laminations. Gilde teaches a device having blind holes (para 6). Therefore, it would have been obvious to a person having ordinary skill in the art before the effective filing of the invention to modify Ota et al. wherein the magnet-fixation holes are blind holes, and are located on one side face of the rotor laminations, as Gilde teaches the use of blind holes. The motivation to do so it would permit one to collect any debris or foreign materials (para 6 of Gilde). Regarding claim 15/3, Ota et al. disclose the invention as discussed above, except wherein the magnet-fixation holes are blind holes, and are located on one side face of the rotor laminations. Gilde teaches a device having blind holes (para 6). Therefore, it would have been obvious to a person having ordinary skill in the art before the effective filing of the invention to modify Ota et al. wherein the magnet-fixation holes are blind holes, and are located on one side face of the rotor laminations, as Gilde teaches the use of blind holes. The motivation to do so it would permit one to collect any debris or foreign materials (para 6 of Gilde). Regarding claim 16/4, Ota et al. disclose the invention as discussed above, except wherein the magnet-fixation holes are blind holes, and are located on one side face of the rotor laminations. Gilde teaches a device having blind holes (para 6). Therefore, it would have been obvious to a person having ordinary skill in the art before the effective filing of the invention to modify Ota et al. wherein the magnet-fixation holes are blind holes, and are located on one side face of the rotor laminations, as Gilde teaches the use of blind holes. The motivation to do so it would permit one to collect any debris or foreign materials (para 6 of Gilde). Regarding claim 17/2, Ota et al. disclose the invention as discussed above, except wherein the magnet-fixation holes are blind holes, and are located on both end faces of the rotor laminations. Gilde teaches a device having blind holes (para 6). Therefore, it would have been obvious to a person having ordinary skill in the art before the effective filing of the invention to modify Ota et al. wherein the magnet-fixation holes are blind holes, and are located on both end faces of the rotor laminations, as Gilde teaches the use of blind holes. The motivation to do so it would permit one to collect any debris or foreign materials (para 6 of Gilde). Regarding claim 18/3, Ota et al. disclose the invention as discussed above, except wherein the magnet-fixation holes are blind holes, and are located on both end faces of the rotor laminations. Gilde teaches a device having blind holes (para 6). Therefore, it would have been obvious to a person having ordinary skill in the art before the effective filing of the invention to modify Ota et al. wherein the magnet-fixation holes are blind holes, and are located on both end faces of the rotor laminations, as Gilde teaches the use of blind holes. The motivation to do so it would permit one to collect any debris or foreign materials (para 6 of Gilde). Regarding claim 19/4, Ota et al. disclose the invention as discussed above, except wherein the magnet-fixation holes are blind holes, and are located on both end faces of the rotor laminations. Gilde teaches a device having blind holes (para 6). Therefore, it would have been obvious to a person having ordinary skill in the art before the effective filing of the invention to modify Ota et al. wherein the magnet-fixation holes are blind holes, and are located on both end faces of the rotor laminations, as Gilde teaches the use of blind holes. The motivation to do so it would permit one to collect any debris or foreign materials (para 6 of Gilde). Claim(s) 8, 9, 20 are rejected under 35 U.S.C. 103 as being unpatentable over Ota et al. (JP 2001157395) in view of Utsumi et al. (US 20130002082). Regarding claim 8/1, Ota et al. disclose the invention as discussed above, except further comprising tongues that are located on inner walls along a longitudinal direction of the magnet slots and connected with the inner walls, and wherein the tongues abut against the magnets. Utsumi et al. teach a machine further comprising tongues (52a,b, 53a,b, Fig 21) that are located on inner walls along a longitudinal direction of the magnet slots (by 34) and connected with the inner walls, and wherein the tongues abut against the magnets (34). Therefore, it would have been obvious to a person having ordinary skill in the art before the effective filing of the invention to modify Ota et al. to have it further comprising tongues that are located on inner walls along a longitudinal direction of the magnet slots and connected with the inner walls, and wherein the tongues abut against the magnets, as Utsumi et al. teach. The motivation to do so it would permit one to retain the magnets (para 95 of Utsumi et al.). Regarding claim 9/8, Ota et al. in view of Utsumi et al. disclose the invention as discussed above. Ota et al. do not teach wherein the tongues and the rotor laminations are integrally formed. Utsumi et al. teach a machine wherein the tongues and the rotor laminations are integrally formed (Fig 21). Therefore, it would have been obvious to a person having ordinary skill in the art before the effective filing of the invention to modify Ota et al. in view of Utsumi et al. to have it wherein the tongues and the rotor laminations are integrally formed, as Utsumi et al. teach. The motivation to do so it would permit one to retain the magnets (para 95 of Utsumi et al.) and be based on simplification of manufacturing and cost. Regarding claim 20/2, Ota et al. disclose the invention as discussed above, except further comprising tongues that are located on inner walls along a longitudinal direction of the magnet slots and connected with the inner walls, and wherein the tongues abut against the magnets. Utsumi et al. teach a machine further comprising tongues (52a,b, 53a,b, Fig 21) that are located on inner walls along a longitudinal direction of the magnet slots (by 34) and connected with the inner walls, and wherein the tongues abut against the magnets (34). Therefore, it would have been obvious to a person having ordinary skill in the art before the effective filing of the invention to modify Ota et al. to have it further comprising tongues that are located on inner walls along a longitudinal direction of the magnet slots and connected with the inner walls, and wherein the tongues abut against the magnets, as Utsumi et al. teach. The motivation to do so it would permit one to retain the magnets (para 95 of Utsumi et al.). Conclusion The prior art made of record and not relied upon is considered pertinent to applicant's disclosure. Please see PTO-892 for details. Any inquiry concerning this communication or earlier communications from the examiner should be directed to NAISHADH N DESAI whose telephone number is (571)270-3038. The examiner can normally be reached 9-5. 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, Christopher M Koehler can be reached at 571-272-3560. 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. NAISHADH N. DESAI Primary Examiner Art Unit 2834 /NAISHADH N DESAI/Primary Examiner, Art Unit 2834
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Prosecution Timeline

Jan 08, 2025
Application Filed
Jul 16, 2026
Non-Final Rejection mailed — §102, §103 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

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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
82%
Grant Probability
91%
With Interview (+8.8%)
2y 6m (~11m remaining)
Median Time to Grant
Low
PTA Risk
Based on 1111 resolved cases by this examiner. Grant probability derived from career allowance rate.

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