Prosecution Insights
Last updated: May 29, 2026
Application No. 18/267,294

METHOD FOR PRODUCING A BIPOLAR PLATE FOR AN ELECTROCHEMICAL CELL, AND BIPOLAR PLATE

Non-Final OA §102
Filed
Jun 14, 2023
Priority
Dec 15, 2020 — DE 10 2020 133 553.9 +1 more
Examiner
YOON, KEVIN E
Art Unit
1735
Tech Center
1700 — Chemical & Materials Engineering
Assignee
Schaeffler Technologies AG & Co. Kg
OA Round
1 (Non-Final)
59%
Grant Probability
Moderate
1-2
OA Rounds
0m
Est. Remaining
99%
With Interview

Examiner Intelligence

Grants 59% of resolved cases
59%
Career Allowance Rate
397 granted / 669 resolved
-5.7% vs TC avg
Strong +43% interview lift
Without
With
+43.1%
Interview Lift
resolved cases with interview
Typical timeline
2y 7m
Avg Prosecution
26 currently pending
Career history
705
Total Applications
across all art units

Statute-Specific Performance

§101
0.5%
-39.5% vs TC avg
§103
86.0%
+46.0% vs TC avg
§102
9.1%
-30.9% vs TC avg
§112
3.2%
-36.8% vs TC avg
Black line = Tech Center average estimate • Based on career data from 669 resolved cases

Office Action

§102
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 . Election/Restrictions Applicant’s election without traverse of Group I, species Ia, claims 1-7 and 12 in the reply filed on 2/19/26 is acknowledged. Claims 8-11 are withdrawn, as they are directed to species Ib and Ic. Specification The disclosure is objected to because of the following informalities: Para. 37, line 2: “a coating 8” appears to be a typo of “a coating 8”. Para. 38, line 12: “a first layer 9´” and “a further layer 9” appear to be typos of “a first layer 9” and “a further layer 9´”. Appropriate correction is required. 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) 1-7 and 12 is/are rejected under 35 U.S.C. 102(a)(1) as being anticipated by Gago Rodriguez et al. (EP 3456866 A1, hereinafter Rodriguez, cited by applicant). Re Claim 1. Rodriguez teaches a method for manufacturing a bipolar plate (Fig. 1, item 12) for an electrochemical cell comprising: providing a fluid impermeable carrier (item 26), applying a fluid-impermeable coating (item 30) over at least one subregion of a surface of the carrier, and forming a flow channel (item 14) on the surface of the carrier prior to applying the coating (P4), wherein the coating is applied by at least one of cold gas spraying (P3), and wherein the coating includes at least one of niobium, tantalum, tin, vanadium, silicon, or at least one of an oxide or a carbide thereof (P4). Re Claim 2. Rodriguez teaches wherein the coating includes at least one of titanium, molybdenum, tungsten, or oxides or carbides thereof (P4). Re Claim 3. Rodriguez teaches wherein the coating includes a titanium alloy, wherein the titanium alloy includes at least one of molybdenum, vanadium, or oxides or carbides thereof (P4). Re Claim 4. Rodriguez teaches wherein the carrier is formed of an electrically conductive material (P5). Re Claim 5. The method according to claim 1, wherein during the application of the coating, at least one of a composition of coating material applied to the surface is changed (P4). Re Claim 6. Rodriguez teaches forming a plurality of flow channels on the surface of the carrier prior to applying the coating (Fig. 1, P4). Re Claim 7. Rodriguez teaches wherein the coating is applied to elevations between the flow channels and depressions of the flow channels remain uncoated (Fig. 1, P4). Re Claim 12. Rodriguez teaches applying particles (Fig. 2, item 32) to at least one of the surface of the carrier during applying the coating, wherein the particles include an electrically conductive material (P6)and reduce a contact resistance at the surface of the coated carrier. Conclusion The prior art made of record and not relied upon is considered pertinent to applicant's disclosure. See PTO-892. The rejections above rely on the references for all the teachings expressed in the text of the references and/or one of ordinary skill in the art would have reasonably understood from the texts. Only specific portions of the texts have been pointed out to emphasize certain aspects of the prior art, however, each reference as a whole should be reviewed in responding to the rejection, since other sections of the same reference and/or various combinations of the cited references may be relied on in future rejections in view of amendments. Any inquiry concerning this communication or earlier communications from the examiner should be directed to KEVIN E YOON whose telephone number is (571)270-5932. The examiner can normally be reached Monday-Friday 9 AM- 5 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, Keith Walker can be reached at 571-272-3458. 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. /KEVIN E YOON/Primary Examiner, Art Unit 1735 3/2/2026
Read full office action

Prosecution Timeline

Jun 14, 2023
Application Filed
Mar 19, 2026
Non-Final Rejection mailed — §102 (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

1-2
Expected OA Rounds
59%
Grant Probability
99%
With Interview (+43.1%)
2y 7m (~0m remaining)
Median Time to Grant
Low
PTA Risk
Based on 669 resolved cases by this examiner. Grant probability derived from career allowance rate.

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