Prosecution Insights
Last updated: October 25, 2026
Application No. 18/456,282

MATERIALS AND METHODS FOR COMPONENTS OF LITHIUM BATTERIES

Non-Final OA §102§103§DOUBLEPATENT
Filed
Aug 25, 2023
Priority
Jun 07, 2018 — provisional 62/681,674 +3 more
Examiner
SLIFKA, COLIN W
Art Unit
1732
Tech Center
1700 — Chemical & Materials Engineering
Assignee
Shenzhen Xworld Technology Limited
OA Round
1 (Non-Final)
67%
Grant Probability
Favorable
1-2
OA Rounds
1m
Est. Remaining
84%
With Interview

Examiner Intelligence

Grants 67% — above average
67%
Career Allowance Rate
609 granted / 904 resolved
+2.4% vs TC avg
Strong +16% interview lift
Without
With
+16.1%
Interview Lift
resolved cases with interview
Typical timeline
3y 3m
Avg Prosecution
22 currently pending
Career history
921
Total Applications
across all art units

Statute-Specific Performance

§101
0.8%
-39.2% vs TC avg
§103
54.2%
+14.2% vs TC avg
§102
11.5%
-28.5% vs TC avg
§112
25.1%
-14.9% vs TC avg
Black line = Tech Center average estimate • Based on career data from 904 resolved cases

Office Action

§102 §103 §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 . Election/Restrictions Applicant’s election without traverse of Group I, Claims 1-11 in the reply filed on July 20, 2026 is acknowledged. Applicant's election with traverse of species claims [6+8] in the reply filed on July 20, 2026 is acknowledged. The traversal is on the ground(s) that it would not constitute an undue burden to search and examine the species grouping of claims [4, 5, and 7]. This is not found persuasive because of the reasons set forth in the restriction requirement. The distinct subject matter claimed results in divergent search areas. The requirement is still deemed proper and is therefore made FINAL. Claims 4, 5, and 7 are withdrawn from further consideration pursuant to 37 CFR 1.142(b), as being drawn to a nonelected species, there being no allowable generic or linking claim. Applicant timely traversed the restriction (election) requirement in the reply filed on July 20, 2026. 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 1-3, 6, and 8-11 are rejected on the ground of nonstatutory double patenting as being unpatentable over claims 1 and 3-5 of U.S. Patent No. 11,831,021. Although the claims at issue are not identical, they are not patentably distinct from each other because the instant claims are encompassed by the patented claims. Claim Objections Applicant is advised that should claim 10 be found allowable, claim 11 will be objected to under 37 CFR 1.75 as being a substantial duplicate thereof. When two claims in an application are duplicates or else are so close in content that they both cover the same thing, despite a slight difference in wording, it is proper after allowing one claim to object to the other as being a substantial duplicate of the allowed claim. See MPEP § 608.01(m). Claim Rejections - 35 USC § 103 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 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) 1-3, 6, and 8-11 is/are rejected under 35 U.S.C. 103 as being unpatentable over Albano et al (US 2016/0351973). Regarding claims 1, 6, and 8, Albano teaches an anode and a protective coating comprising a layer, or layers, of material deposited on a surface of the anode active material, the layer of material comprising one or more of a metal oxide, such as alumina or titania, a metal halide, etc. (claim 23 and par. 47). Regarding claims 2, 3, and 9-11 and further regarding claim 1, Albano teaches the battery is taught to comprise a lithium metal anode layer (par. 61), and the anode comprises lithium metal particles coating with a layer of material having a thickness of 100 nm or less (claim 28 and par. 65). The overlapping ranges constitute prima facie obviousness. Claims 1-3, 6, and 8-11 is/are rejected under 35 U.S.C. 103 as being obvious over Elam et al (US 2019/0044151). The applied reference has a common inventor, Lin Chen, with the instant application. Based upon the earlier effectively filed date of the reference, it constitutes prior art under 35 U.S.C. 102(a)(2). Regarding claims 1-3, 6, and 8, Elam teaches protective coatings for lithium anodes (title) comprising an inorganic component including at least one of a metal oxide, a metal fluoride, or combination thereof (abstract), specific oxides taught to include at least Al, Hf, Li, and Mn (par. 39). The overlapping teachings constitute prima facie obviousness. Regarding claims 9-11, Elam teaches that the protective coating has a thickness in the range of 1-10 nm (par. 9). This rejection under 35 U.S.C. 103 might be overcome by: (1) a showing under 37 CFR 1.130(a) that the subject matter disclosed in the reference was obtained directly or indirectly from the inventor or a joint inventor of this application and is thus not prior art in accordance with 35 U.S.C.102(b)(2)(A); (2) a showing under 37 CFR 1.130(b) of a prior public disclosure under 35 U.S.C. 102(b)(2)(B); or (3) a statement pursuant to 35 U.S.C. 102(b)(2)(C) establishing that, not later than the effective filing date of the claimed invention, the subject matter disclosed and the claimed invention were either owned by the same person or subject to an obligation of assignment to the same person or subject to a joint research agreement. See generally MPEP § 717.02. Claims 1-3, 6, and 8-11 is/are rejected under 35 U.S.C. 103 as being obvious over Elam et al (US 11,831,021; hereinafter referred to as Elam ‘021). The applied reference has a common inventor, Lin Chen, with the instant application. Based upon the earlier effectively filed date of the reference, it constitutes prior art under 35 U.S.C. 102(a)(2). Regarding claims 1-3, 6, and 8, Elam ‘021 teaches protective coatings for lithium anodes (title) comprising an inorganic component, including at least one of a metal oxide, a metal fluoride, or combination thereof (abstract). The overlapping teachings constitute prima facie obviousness. Further regarding claims 1-3, Elam ‘021 teaches that the substrate comprises lithium (claim 5). Regarding claims 9-11, Elam ‘021 teaches that the protective coating has a thickness in the range of 0.1-100 nm (claim 3), or in the range of 1-10 nm (claim 4). This rejection under 35 U.S.C. 103 might be overcome by: (1) a showing under 37 CFR 1.130(a) that the subject matter disclosed in the reference was obtained directly or indirectly from the inventor or a joint inventor of this application and is thus not prior art in accordance with 35 U.S.C.102(b)(2)(A); (2) a showing under 37 CFR 1.130(b) of a prior public disclosure under 35 U.S.C. 102(b)(2)(B); or (3) a statement pursuant to 35 U.S.C. 102(b)(2)(C) establishing that, not later than the effective filing date of the claimed invention, the subject matter disclosed and the claimed invention were either owned by the same person or subject to an obligation of assignment to the same person or subject to a joint research agreement. See generally MPEP § 717.02. Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to COLIN W SLIFKA whose telephone number is (571)270-5830. The examiner can normally be reached Monday-Friday, 9:00 AM-5:30 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, Ching-Yiu (Coris) Fung can be reached at 571-270-5713. 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. /Colin W. Slifka/Primary Examiner, Art Unit 1732
Read full office action

Prosecution Timeline

Aug 25, 2023
Application Filed
Sep 30, 2026
Non-Final Rejection mailed — §102, §103, §DOUBLEPATENT (current)

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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
67%
Grant Probability
84%
With Interview (+16.1%)
3y 3m (~1m remaining)
Median Time to Grant
Low
PTA Risk
Based on 904 resolved cases by this examiner. Grant probability derived from career allowance rate.

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