Prosecution Insights
Last updated: September 17, 2026
Application No. 17/970,342

Multi-Stage Process for Producing a Material of a Battery Cell

Non-Final OA §102§DOUBLEPATENT
Filed
Oct 20, 2022
Priority
May 06, 2013 — provisional 61/855,063 +2 more
Examiner
AKRAM, IMRAN
Art Unit
1725
Tech Center
1700 — Chemical & Materials Engineering
Assignee
Ejoule International Limited
OA Round
7 (Non-Final)
64%
Grant Probability
Moderate
7-8
OA Rounds
0m
Est. Remaining
99%
With Interview

Examiner Intelligence

Grants 64% of resolved cases
64%
Career Allowance Rate
630 granted / 977 resolved
-0.5% vs TC avg
Strong +43% interview lift
Without
With
+42.9%
Interview Lift
resolved cases with interview
Typical timeline
3y 3m
Avg Prosecution
46 currently pending
Career history
1025
Total Applications
across all art units

Statute-Specific Performance

§101
0.7%
-39.3% vs TC avg
§103
41.5%
+1.5% vs TC avg
§102
32.3%
-7.7% vs TC avg
§112
19.5%
-20.5% vs TC avg
Black line = Tech Center average estimate • Based on career data from 977 resolved cases

Office Action

§102 §DOUBLEPATENT
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 . Response to Arguments Applicant's arguments filed 11/7/25 have been fully considered but they are not persuasive. The independent claims have been amended to remove sodium iron manganese oxide (used in the previous art rejections) and now only recite lithium cobalt aluminum oxide (LCAO). The art rejections are therefore obviated. New rejections are presented with references not addressed previously or in the Remarks. The arguments directed to the double patenting rejections and USC 102 rejections (in the context of the amendment) rely on features of the claimed system. However, as reiterated previously, the instant claims are directed to a composition. Thus, they are product-by-process claims. The claimed system does not change the properties or scope of the product. “If the product in the product-by-process claim is the same as or obvious from a product of the prior art, the claim is unpatentable even though the prior product was made by a different process.” See MPEP 2113 I. The structures of the system and all the functionality of the dependent claims is not given patentable weight beyond the end product. In the present case, that is solid particles of consisting essentially of a material comprising LCAO having a particle size of between 10 nm and 100 μm. It should be noted that claim 1 utilizes two transitional phrases: consisting essentially of a material comprising. While consisting essentially of is partially exclusive, comprising is inclusive. See MPEP 2111.03. The Office interprets the present phrasing as inclusive. While the particles may be limited to a material and those that do not materially affect the basic and novel characteristic(s) of the claimed invention, the material can comprise elements beyond the claimed LCAO. Double Patenting The nonstatutory double patenting rejection is based on a judicially created doctrine grounded in public policy (a policy reflected in the statute) so as to prevent the unjustified or improper timewise extension of the “right to exclude” granted by a patent and to prevent possible harassment by multiple assignees. A nonstatutory double patenting rejection is appropriate where the conflicting claims are not identical, but at least one examined application claim is not patentably distinct from the reference claim(s) because the examined application claim is either anticipated by, or would have been obvious over, the reference claim(s). See, e.g., In re Berg, 140 F.3d 1428, 46 USPQ2d 1226 (Fed. Cir. 1998); In re Goodman, 11 F.3d 1046, 29 USPQ2d 2010 (Fed. Cir. 1993); In re Longi, 759 F.2d 887, 225 USPQ 645 (Fed. Cir. 1985); In re Van Ornum, 686 F.2d 937, 214 USPQ 761 (CCPA 1982); In re Vogel, 422 F.2d 438, 164 USPQ 619 (CCPA 1970); In re Thorington, 418 F.2d 528, 163 USPQ 644 (CCPA 1969). A timely filed terminal disclaimer in compliance with 37 CFR 1.321(c) or 1.321(d) may be used to overcome an actual or provisional rejection based on nonstatutory double patenting provided the reference application or patent either is shown to be commonly owned with the examined application, or claims an invention made as a result of activities undertaken within the scope of a joint research agreement. See MPEP § 717.02 for applications subject to examination under the first inventor to file provisions of the AIA as explained in MPEP § 2159. See MPEP § 2146 et seq. for applications not subject to examination under the first inventor to file provisions of the AIA . A terminal disclaimer must be signed in compliance with 37 CFR 1.321(b). The filing of a terminal disclaimer by itself is not a complete reply to a nonstatutory double patenting (NSDP) rejection. A complete reply requires that the terminal disclaimer be accompanied by a reply requesting reconsideration of the prior Office action. Even where the NSDP rejection is provisional the reply must be complete. See MPEP § 804, subsection I.B.1. For a reply to a non-final Office action, see 37 CFR 1.111(a). For a reply to final Office action, see 37 CFR 1.113(c). A request for reconsideration while not provided for in 37 CFR 1.113(c) may be filed after final for consideration. See MPEP §§ 706.07(e) and 714.13. The USPTO Internet website contains terminal disclaimer forms which may be used. Please visit www.uspto.gov/patent/patents-forms. The actual filing date of the application in which the form is filed determines what form (e.g., PTO/SB/25, PTO/SB/26, PTO/AIA /25, or PTO/AIA /26) should be used. A web-based eTerminal Disclaimer may be filled out completely online using web-screens. An eTerminal Disclaimer that meets all requirements is auto-processed and approved immediately upon submission. For more information about eTerminal Disclaimers, refer to www.uspto.gov/patents/apply/applying-online/eterminal-disclaimer. Claims 1-12, 14-17, and 19-21 are rejected on the ground of nonstatutory double patenting as being unpatentable over claim 1 of U.S. Patent No. 12,132,190 B2. Although the claims at issue are not identical, they are not patentably distinct from each other because the patented claim encompasses all of the limitations of the instant claims. Claim Rejections - 35 USC § 102 In the event the determination of the status of the application as subject to AIA 35 U.S.C. 102 and 103 (or as subject to pre-AIA 35 U.S.C. 102 and 103) is incorrect, any correction of the statutory basis (i.e., changing from AIA to pre-AIA ) for the rejection will not be considered a new ground of rejection if the prior art relied upon, and the rationale supporting the rejection, would be the same under either status. 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. Claims 1-12, 14, and 15 are rejected under 35 U.S.C. 102(a)(1) as being anticipated by Yu (US 2018/0090749 A1). Yu discloses a material comprising LCAO particles (paragraph 9) in the range of 0.5 to 30 μm (claim 2). The claimed system does not change the properties or scope of the product. “If the product in the product-by-process claim is the same as or obvious from a product of the prior art, the claim is unpatentable even though the prior product was made by a different process.” See MPEP 2113 I. Claims 16 and 17 are rejected under 35 U.S.C. 102(a)(1) as being anticipated by Yushin (US 2017/0098823 A1). Yushin discloses a material comprising LCAO particles (paragraph 8) in the range of 0.4-200 nm (paragraph 54). The claimed system does not change the properties or scope of the product. “If the product in the product-by-process claim is the same as or obvious from a product of the prior art, the claim is unpatentable even though the prior product was made by a different process.” See MPEP 2113 I. Claims 19-21 are rejected under 35 U.S.C. 102(a)(1) as being anticipated by Chen (US 2014/0326918 A1). Chen discloses a material comprising LCAO particles (claim 12) in the range of 10 nm to 100 μm (paragraph 162). The claimed system does not change the properties or scope of the product. “If the product in the product-by-process claim is the same as or obvious from a product of the prior art, the claim is unpatentable even though the prior product was made by a different process.” See MPEP 2113 I. Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to IMRAN AKRAM whose telephone number is (571)270-3241. The examiner can normally be reached M-F 9a-5p. 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, Basia Ridley can be reached at 571-272-1453. 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. /IMRAN AKRAM/Primary Examiner, Art Unit 1725
Read full office action

Prosecution Timeline

Show 12 earlier events
Aug 08, 2025
Non-Final Rejection mailed — §102, §DOUBLEPATENT
Nov 07, 2025
Response Filed
Mar 11, 2026
Final Rejection mailed — §102, §DOUBLEPATENT
Apr 24, 2026
Response after Non-Final Action
Apr 29, 2026
Request for Continued Examination
May 03, 2026
Response after Non-Final Action
May 04, 2026
Applicant Interview (Telephonic)
May 19, 2026
Non-Final Rejection mailed — §102, §DOUBLEPATENT (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12735650
DRYING FURNACE DEVICE OF GASIFIER CAPABLE OF AUTOMATICALLY ADJUSTING TEMPERATURE
2y 11m to grant Granted Sep 15, 2026
Patent 12731833
METHOD FOR MANUFACTURING A STEEL STRIP OR SHEET FOR A BATTERY CASE AND BATTERY CASE MADE THEREFROM
3y 1m to grant Granted Sep 08, 2026
Patent 12731812
ELECTROLYTES FOR IMPROVED PERFORMANCE OF CELLS WITH HIGH-CAPACITY ANODES BASED ON MICRON-SCALE MODERATE VOLUME-CHANGING PARTICLES
3y 2m to grant Granted Sep 08, 2026
Patent 12725814
HYDROGEN FUEL CELL EXHAUST SYSTEM
5y 0m to grant Granted Sep 01, 2026
Patent 12725863
BATTERY PACK
3y 5m to grant Granted Sep 01, 2026
Study what changed to get past this examiner. Based on 5 most recent grants.

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Prosecution Projections

7-8
Expected OA Rounds
64%
Grant Probability
99%
With Interview (+42.9%)
3y 3m (~0m remaining)
Median Time to Grant
High
PTA Risk
Based on 977 resolved cases by this examiner. Grant probability derived from career allowance rate.

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