Prosecution Insights
Last updated: October 02, 2026
Application No. 18/547,236

Insulation System for Electrically Rotating MachinesAnd Method for the Production Thereof

Non-Final OA §112
Filed
Aug 21, 2023
Priority
Feb 22, 2021 — DE 10 2021 201 664.2 +1 more
Examiner
WIECZOREK, MICHAEL P
Art Unit
1712
Tech Center
1700 — Chemical & Materials Engineering
Assignee
Siemens Aktiengesellschaft
OA Round
5 (Non-Final)
55%
Grant Probability
Moderate
5-6
OA Rounds
1m
Est. Remaining
72%
With Interview

Examiner Intelligence

Grants 55% of resolved cases
55%
Career Allowance Rate
497 granted / 900 resolved
-9.8% vs TC avg
Strong +17% interview lift
Without
With
+16.8%
Interview Lift
resolved cases with interview
Typical timeline
3y 2m
Avg Prosecution
37 currently pending
Career history
939
Total Applications
across all art units

Statute-Specific Performance

§101
0.6%
-39.4% vs TC avg
§103
51.3%
+11.3% vs TC avg
§102
12.7%
-27.3% vs TC avg
§112
31.0%
-9.0% vs TC avg
Black line = Tech Center average estimate • Based on career data from 900 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 . Continued Examination Under 37 CFR 1.114 A request for continued examination under 37 CFR 1.114, including the fee set forth in 37 CFR 1.17(e), was filed in this application after final rejection. Since this application is eligible for continued examination under 37 CFR 1.114, and the fee set forth in 37 CFR 1.17(e) has been timely paid, the finality of the previous Office action has been withdrawn pursuant to 37 CFR 1.114. Applicant's submission filed on August 05, 2026 has been entered. Status of the Claims By amendment filed August 05, 2026, claims 11, 12, 19 and 25 have been amended. Claims 11 through 14, and 16 through 27 are currently pending. Response to Arguments Applicant’s arguments, filed August 05, 2026, with respect to the rejections of the claims have been fully considered and are persuasive. Therefore, the rejection has been withdrawn. However, upon further consideration, a new ground(s) of rejection is made in view of the amendments to the claims. The amendments to claim 11 have overcome the prior art rejections and 112(a) rejections but have caused dependent claims 17 and 18 to be rejected under 112(d) for failing to further limit the parent claim. Both claims 17 and 18 require a second resin component that is different from the second resin component of parent claim 11 and therefore fail to further limit. Several attempts were made to contact attorney of record to discuss an examiner amendment but contact could not be made. Claim Rejections - 35 USC § 112 The following is a quotation of 35 U.S.C. 112(d): (d) REFERENCE IN DEPENDENT FORMS.—Subject to subsection (e), a claim in dependent form shall contain a reference to a claim previously set forth and then specify a further limitation of the subject matter claimed. A claim in dependent form shall be construed to incorporate by reference all the limitations of the claim to which it refers. The following is a quotation of pre-AIA 35 U.S.C. 112, fourth paragraph: Subject to the following paragraph [i.e., the fifth paragraph of pre-AIA 35 U.S.C. 112], a claim in dependent form shall contain a reference to a claim previously set forth and then specify a further limitation of the subject matter claimed. A claim in dependent form shall be construed to incorporate by reference all the limitations of the claim to which it refers. Claims 17 and 18 are rejected under 35 U.S.C. 112(d) or pre-AIA 35 U.S.C. 112, 4th paragraph, as being of improper dependent form for failing to further limit the subject matter of the claim upon which it depends, or for failing to include all the limitations of the claim upon which it depends. Claim 11 requires that the second resin component comprises a hydroxy-functionalized polyphenolsiloxane-based compound however dependent claim 17 requires a resin mixture that does not comprise a hydroxy-functionalized polyphenolsiloxane-based compound and therefore fails to further limit. It is suggested that claim 17 is either cancelled or amended to recite “the second resin component further comprises a resin mixture”. Claim 11 requires that the second resin component comprises a hydroxy-functionalized polyphenolsiloxane-based compound however dependent claim 18 requires that the second resin is a monomeric and/or oligomeric silsesquioxane compound which different from a hydroxy-functionalized polyphenolsiloxane-based compound and therefore fails to further limit. It is suggested that claim 18 is either cancelled or amended to recite “the second resin component further comprises”. Applicant may cancel the claim(s), amend the claim(s) to place the claim(s) in proper dependent form, rewrite the claim(s) in independent form, or present a sufficient showing that the dependent claim(s) complies with the statutory requirements. Allowable Subject Matter Claims 11 through 14, 16 and 19 through 27 are allowed. Claims 17 and 18 would be allowable if rewritten to overcome the rejection(s) under 35 U.S.C. 112(b) or 35 U.S.C. 112 (pre-AIA ), 2nd paragraph, set forth in this Office action and to include all of the limitations of the base claim and any intervening claims. The following is a statement of reasons for the indication of allowable subject matter: Huber (WIPO Patent Publication No. WO2019/154932A1) taught a method for forming an insulation system for components of an electrical rotating machine wherein a formulation which was either a dry powder or wet enamel was applied ton to a boil or bar to produce the insulation system. Furthermore, Huber teaches that the formulation comprised a first resin component and a second resin component based on siloxane. However, Huber does not fairly teach or suggest that the second resin component comprised a hydroxy-functionalized polyphenolsiloxane-based compound. Conclusion Claims 17 and 18 have been rejected and Claims 11 through 14, 16 and 19 through 27 have been allowed. Any inquiry concerning this communication or earlier communications from the examiner should be directed to MICHAEL P WIECZOREK whose telephone number is (571)270-5341. The examiner can normally be reached Monday - Friday, 6:00 AM - 3:30 PM. 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, Michael Cleveland can be reached at (571)272-1418. 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. /MICHAEL P WIECZOREK/Primary Examiner, Art Unit 1712
Read full office action

Prosecution Timeline

Show 6 earlier events
Jan 02, 2026
Response after Non-Final Action
Jan 16, 2026
Non-Final Rejection mailed — §112
Apr 03, 2026
Response Filed
May 06, 2026
Final Rejection mailed — §112
Jul 21, 2026
Response after Non-Final Action
Aug 05, 2026
Request for Continued Examination
Aug 07, 2026
Response after Non-Final Action
Aug 20, 2026
Non-Final Rejection mailed — §112 (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

5-6
Expected OA Rounds
55%
Grant Probability
72%
With Interview (+16.8%)
3y 2m (~1m remaining)
Median Time to Grant
High
PTA Risk
Based on 900 resolved cases by this examiner. Grant probability derived from career allowance rate.

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