Prosecution Insights
Last updated: August 14, 2026
Application No. 18/513,886

METHOD FOR FORMING A STATOR WINDING, ANNULAR LAMINATED CORE, AND ELECTRIC MOTOR

Non-Final OA §103
Filed
Nov 20, 2023
Priority
May 21, 2021 — DE 10 2021 205 244.4 +1 more
Examiner
GONZALEZ QUINONES, JOSE A
Art Unit
2800
Tech Center
2800 — Semiconductors & Electrical Systems
Assignee
Brose Fahrzeugteile SE & Co. Kommanditgesellschaft Würzburg
OA Round
2 (Non-Final)
76%
Grant Probability
Favorable
2-3
OA Rounds
0m
Est. Remaining
88%
With Interview

Examiner Intelligence

Grants 76% — above average
76%
Career Allowance Rate
895 granted / 1178 resolved
+8.0% vs TC avg
Moderate +12% lift
Without
With
+12.3%
Interview Lift
resolved cases with interview
Typical timeline
2y 5m
Avg Prosecution
40 currently pending
Career history
1196
Total Applications
across all art units

Statute-Specific Performance

§101
0.4%
-39.6% vs TC avg
§103
66.5%
+26.5% vs TC avg
§102
27.4%
-12.6% vs TC avg
§112
4.3%
-35.7% vs TC avg
Black line = Tech Center average estimate • Based on career data from 1178 resolved cases

Office Action

§103
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 . Information Disclosure Statement The information disclosure statements (IDS) submitted on 06/29/2026 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 § 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. Claim(s)1-7 is/are rejected under 35 U.S.C. 103 as being unpatentable over Chen et al. (US PG Pub 2020/0381973) in view of Laber et al. (US PG Pub 2013/0313927) and Yu (CN 115441625). As to independent claim 1, Chen et al. teaches a method of forming a stator winding of an annular laminated core for an electric motor, the method comprising: providing a stator (10) of the annular core (11) with an insulating end disc (13), the insulating end disc (13) having a plurality of terminating domes (131-138) formed thereon protruding in an axial direction of the annular core (11); wrapping stator teeth (151) protruding in a radial direction with a winding wire (20), to form a respective coil on each of the stator teeth (151); routing the winding wire (20) between respective coils that which are assigned to the same phase (U-phase, V-phase and W-phase output terminals of the motor, see paragraph [0035]) to the insulating end disc and/or routing the winding wire for connecting the correspondingly assigned coil or each correspondingly assigned coil to motor electronics of the electric motor (see paragraph [0035]) to the insulating end disc (13); and laying the winding wire around respective terminating domes (131-138) to form fixing loops for fixing the winding wire (20), and also routing the winding wire (20) radially outside the terminating domes (131-138) and radially inside the terminating domes (131-138) as shown in figures 1-4. However Chen et al. teaches the claimed limitation and discussed above except stator laminate stack and annular laminate core and between two respective coils that which are assigned to the same phase. Laber et al. teaches stator laminate stack (200) and annular laminate core (210) as shown in figure 2, for the advantageous benefit of preventing self-actuated detachment of the fastening segment disposed in the receptacle. Yu teaches between two respective coils that which are assigned to the same phase (see paragraph [0029]), for the advantageous benefit of providing for satisfying automatic production, and quickly finishes the connection of the motor circuit. It would have been obvious to one having ordinary skill in the art before the effective filing date of the claimed invention was made to modify Chen et al. by using stator laminate stack and annular laminate core and between two respective coils that which are assigned to the same phase, as taught by Laber et al. and Yu, to prevent self-actuated detachment of the fastening segment disposed in the receptacle and provide for satisfying automatic production, and quickly finishes the connection of the motor circuit. As to claim 2/1, Chen et al. teaches wherein the terminating domes (131-138) are arranged along a circle ring line on the insulating end disc (13), and wherein the winding wire (20) is routed as a circle chord radially inside the terminating domes (131-138) as shown in figures -4 As to claim 3/2, Chen et al. teaches which comprises routing the winding wire (20) radially on the inside from one of the terminating domes (131-138) to another of the terminating domes (131-138) as shown in figures 1-4. As to claim 4/3, Chen et al. teaches wherein the winding wire (20) extends freely between the two terminating domes (131-138) as shown in figures 1-4. As to claim 5/2, Chen et al. teaches which comprises routing the winding wire (20) radially outside the terminating domes (131-138) on an end face of the insulating end disc (13) facing away from the stator teeth (151) as shown in figure 1. As to independent claim 6, Chen et al. teaches an annular core (11) for an electric motor, the core (11) comprising : a stator (10) formed with a plurality protruding stator teeth (151); an insulating end disc (13) disposed on an end face of said stator (10), the insulating end disc (13) having a plurality of axially protruding of terminating domes (131-138) thereon; a coil formed by winding wire (20) wound on the radially protruding stator teeth (151); wherein said a winding wire (20) is routed between respective coils that which are assigned to the same phase (U-phase, V-phase and W-phase output terminals of the motor, see paragraph [0035]) to the insulating end disc and/or routing the winding wire for connecting the correspondingly assigned coil or each correspondingly assigned coil to motor electronics of the electric motor (see paragraph [0035]) to the insulating end disc (13); and laying the winding wire around respective terminating domes (131-138) to form fixing loops for fixing the winding wire (20), and also routing the winding wire (20) radially outside the terminating domes (131-138) and radially inside the terminating domes (131-138) as shown in figures 1-4. However Chen et al. teaches the claimed limitation and discussed above except stator laminate stack and annular laminate core and between two respective coils that which are assigned to the same phase. Laber et al. teaches stator laminate stack (200) and annular laminate core (210) as shown in figure 2, for the advantageous benefit of preventing self-actuated detachment of the fastening segment disposed in the receptacle. Yu teaches between two respective coils that which are assigned to the same phase (see paragraph [0029]), for the advantageous benefit of providing for satisfying automatic production, and quickly finishes the connection of the motor circuit. It would have been obvious to one having ordinary skill in the art before the effective filing date of the claimed invention was made to modify Asano by using stator laminate stack and annular laminate core and between two respective coils that which are assigned to the same phase, as taught by Laber et al. and Yu, to prevent self-actuated detachment of the fastening segment disposed in the receptacle and provide for satisfying automatic production, and quickly finishes the connection of the motor circuit. As to claim 7/6, Chen et al. in view of Laber et al and Yu teaches the claimed limitation as dissed above except an electric motor, comprising an annular laminated core. Laber et al. teaches an electric motor, comprising an annular laminated core (210) as shown in figure 2, for the advantageous benefit of preventing self-actuated detachment of the fastening segment disposed in the receptacle. It would have been obvious to one having ordinary skill in the art before the effective filing date of the claimed invention was made to modify Chen et al. in view of Laber et al and Yu by an annular laminated core, as taught by Laber et al., to prevent self-actuated detachment of the fastening segment disposed in the receptacle. Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to JOSE A GONZALEZ QUINONES whose telephone number is (571)270-7850. The examiner can normally be reached Monday-Friday: 6:30-2:30 EST. 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, OLUSEYE IWARERE can be reached at (571)270-5112. 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. /JOSE A GONZALEZ QUINONES/ Primary Examiner, Art Unit 2834 July 28, 2026
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Prosecution Timeline

Nov 20, 2023
Application Filed
Oct 06, 2025
Non-Final Rejection mailed — §103
Jan 06, 2026
Response Filed
Jul 30, 2026
Non-Final Rejection mailed — §103 (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

2-3
Expected OA Rounds
76%
Grant Probability
88%
With Interview (+12.3%)
2y 5m (~0m remaining)
Median Time to Grant
Moderate
PTA Risk
Based on 1178 resolved cases by this examiner. Grant probability derived from career allowance rate.

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