Prosecution Insights
Last updated: October 23, 2026
Application No. 18/838,748

ROTOR ARRANGEMENT FOR A SEPARATELY EXCITED SYNCHRONOUS MACHINE

Final Rejection §112
Filed
Aug 15, 2024
Priority
Feb 16, 2022 — DE 10 2022 201 589.4 +1 more
Examiner
MOK, ALEX W
Art Unit
2834
Tech Center
2800 — Semiconductors & Electrical Systems
Assignee
ZF Friedrichshafen AG
OA Round
2 (Final)
74%
Grant Probability
Favorable
3-4
OA Rounds
6m
Est. Remaining
95%
With Interview

Examiner Intelligence

Grants 74% — above average
74%
Career Allowance Rate
852 granted / 1148 resolved
+6.2% vs TC avg
Strong +21% interview lift
Without
With
+20.9%
Interview Lift
resolved cases with interview
Typical timeline
2y 8m
Avg Prosecution
27 currently pending
Career history
1204
Total Applications
across all art units

Statute-Specific Performance

§101
1.6%
-38.4% vs TC avg
§103
67.5%
+27.5% vs TC avg
§102
22.2%
-17.8% vs TC avg
§112
7.3%
-32.7% vs TC avg
Black line = Tech Center average estimate • Based on career data from 1148 resolved cases

Office Action

§112
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 . Amendment Acknowledgement is made of Amendment filed August 11, 2026. Claim Rejections - 35 USC § 112 The following is a quotation of 35 U.S.C. 112(b): (b) CONCLUSION.—The specification shall conclude with one or more claims particularly pointing out and distinctly claiming the subject matter which the inventor or a joint inventor regards as the invention. The following is a quotation of 35 U.S.C. 112 (pre-AIA ), second paragraph: The specification shall conclude with one or more claims particularly pointing out and distinctly claiming the subject matter which the applicant regards as his invention. Claims 13-19 and 21-27 are rejected under 35 U.S.C. 112(b) or 35 U.S.C. 112 (pre-AIA ), second paragraph, as being incomplete for omitting essential elements, such omission amounting to a gap between the elements. See MPEP § 2172.01. The omitted elements are: what the structural limitations are for the claimed “secondary side of the transformer”. For independent claims 13 and 23, the claimed element of “a secondary side of the transformer” renders the claim indefinite as the claim does not provide where the element is structurally located in relation to the other elements recited in the claimed invention, which makes the scope of the claimed limitation of the rectifier being "…between a secondary side of the transformer and the at least one exciter winding" unclear, and therefore fails to point out and distinctly claim the subject matter of the applicant’s invention. Claims 14-19, 21, 22, and 24-27 are rejected for their dependency upon aforementioned claims 13 and 23. Response to Arguments Applicant’s arguments with respect to claim(s) 13-19 and 21-27 have been considered but are moot because the new ground of rejection does not rely on any reference applied in the prior rejection of record for any teaching or matter specifically challenged in the argument. Also it is suggested that including further definitions of a “primary side” and “secondary side” (such as the limitations provided in dependent claim 14) into the independent claims would be beneficial in overcoming the rejection stated in the present action. Conclusion Applicant's amendment necessitated the new ground(s) of rejection presented in this Office action. Accordingly, THIS ACTION IS MADE FINAL. See MPEP § 706.07(a). Applicant is reminded of the extension of time policy as set forth in 37 CFR 1.136(a). A shortened statutory period for reply to this final action is set to expire THREE MONTHS from the mailing date of this action. In the event a first reply is filed within TWO MONTHS of the mailing date of this final action and the advisory action is not mailed until after the end of the THREE-MONTH shortened statutory period, then the shortened statutory period will expire on the date the advisory action is mailed, and any nonprovisional extension fee (37 CFR 1.17(a)) pursuant to 37 CFR 1.136(a) will be calculated from the mailing date of the advisory action. In no event, however, will the statutory period for reply expire later than SIX MONTHS from the mailing date of this final action. Any inquiry concerning this communication or earlier communications from the examiner should be directed to ALEX W MOK whose telephone number is (571)272-9084. The examiner can normally be reached 8am-4pm. 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, Seye 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. /ALEX W MOK/Primary Examiner, Art Unit 2834
Read full office action

Prosecution Timeline

Aug 15, 2024
Application Filed
Jun 10, 2026
Non-Final Rejection mailed — §112
Aug 11, 2026
Response Filed
Oct 07, 2026
Final Rejection mailed — §112 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

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Patent 12771210
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Study what changed to get past this examiner. Based on 5 most recent grants.

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Prosecution Projections

3-4
Expected OA Rounds
74%
Grant Probability
95%
With Interview (+20.9%)
2y 8m (~6m remaining)
Median Time to Grant
Moderate
PTA Risk
Based on 1148 resolved cases by this examiner. Grant probability derived from career allowance rate.

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