Prosecution Insights
Last updated: October 21, 2026
Application No. 18/632,529

ALKALI-METAL ANODE WITH ALLOY COATING APPLIED BY FRICTION

Non-Final OA §112§DOUBLEPATENT
Filed
Apr 11, 2024
Priority
Oct 01, 2019 — provisional 62/909,062 +1 more
Examiner
DOVE, TRACY MAE
Art Unit
1725
Tech Center
1700 — Chemical & Materials Engineering
Assignee
William Marsh Rice University
OA Round
1 (Non-Final)
69%
Grant Probability
Favorable
1-2
OA Rounds
1y 1m
Est. Remaining
78%
With Interview

Examiner Intelligence

Grants 69% — above average
69%
Career Allowance Rate
499 granted / 726 resolved
+3.7% vs TC avg
Moderate +9% lift
Without
With
+9.3%
Interview Lift
resolved cases with interview
Typical timeline
3y 8m
Avg Prosecution
40 currently pending
Career history
779
Total Applications
across all art units

Statute-Specific Performance

§101
0.4%
-39.6% vs TC avg
§103
34.0%
-6.0% vs TC avg
§102
27.5%
-12.5% vs TC avg
§112
32.0%
-8.0% vs TC avg
Black line = Tech Center average estimate • Based on career data from 726 resolved cases

Office Action

§112 §DOUBLEPATENT
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 . DETAILED ACTION Information Disclosure Statement The information disclosure statements (IDS) submitted on 10/11/24, 10/11/24, 10/11/24 and 10/11/24 have been considered by the examiner. Election/Restriction Restriction to one of the following inventions is required under 35 U.S.C. 121: I. Claims 21-29, drawn to a method, classified in H01M 4/0402. II. Claims 30-38, drawn to an electrochemical cell, classified in H01M 4/583. The inventions are independent or distinct, each from the other because: Inventions I and II are related as process of making and product made. The inventions are distinct if either or both of the following can be shown: (1) that the process as claimed can be used to make another and materially different product or (2) that the product as claimed can be made by another and materially different process (MPEP § 806.05(f)). In the instant case the product may be made by another materially different method. Restriction for examination purposes as indicated is proper because all the inventions listed in this action are independent or distinct for the reasons given above and there would be a serious search and/or examination burden if restriction were not required because one or more of the following reasons apply: The search for the method limitations of Invention I is not required for the electrochemical cell of Invention II. Applicant is advised that the reply to this requirement to be complete must include (i) an election of an invention to be examined even though the requirement may be traversed (37 CFR 1.143) and (ii) identification of the claims encompassing the elected invention. The election of an invention may be made with or without traverse. To reserve a right to petition, the election must be made with traverse. If the reply does not distinctly and specifically point out supposed errors in the restriction requirement, the election shall be treated as an election without traverse. Traversal must be presented at the time of election in order to be considered timely. Failure to timely traverse the requirement will result in the loss of right to petition under 37 CFR 1.144. If claims are added after the election, applicant must indicate which of these claims are readable upon the elected invention. Should applicant traverse on the ground that the inventions are not patentably distinct, applicant should submit evidence or identify such evidence now of record showing the inventions to be obvious variants or clearly admit on the record that this is the case. In either instance, if the examiner finds one of the inventions unpatentable over the prior art, the evidence or admission may be used in a rejection under 35 U.S.C. 103 or pre-AIA 35 U.S.C. 103(a) of the other invention. During a telephone conversation with Ross Spencer Garsson on 10/14/26 a provisional election was made without traverse to prosecute the invention of Group I, claims 21-29. Affirmation of this election must be made by applicant in replying to this Office action. Claims 30-38 are withdrawn from further consideration by the examiner, 37 CFR 1.142(b), as being drawn to a non-elected invention. The examiner has required restriction between product or apparatus claims and process claims. Where applicant elects claims directed to the product/apparatus, and all product/apparatus claims are subsequently found allowable, withdrawn process claims that include all the limitations of the allowable product/apparatus claims should be considered for rejoinder. All claims directed to a nonelected process invention must include all the limitations of an allowable product/apparatus claim for that process invention to be rejoined. In the event of rejoinder, the requirement for restriction between the product/apparatus claims and the rejoined process claims will be withdrawn, and the rejoined process claims will be fully examined for patentability in accordance with 37 CFR 1.104. Thus, to be allowable, the rejoined claims must meet all criteria for patentability including the requirements of 35 U.S.C. 101, 102, 103 and 112. Until all claims to the elected product/apparatus are found allowable, an otherwise proper restriction requirement between product/apparatus claims and process claims may be maintained. Withdrawn process claims that are not commensurate in scope with an allowable product/apparatus claim will not be rejoined. See MPEP § 821.04. Additionally, in order for rejoinder to occur, applicant is advised that the process claims should be amended during prosecution to require the limitations of the product/apparatus claims. Failure to do so may result in no rejoinder. Further, note that the prohibition against double patenting rejections of 35 U.S.C. 121 does not apply where the restriction requirement is withdrawn by the examiner before the patent issues. See MPEP § 804.01. 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 21-29 are rejected on the ground of nonstatutory double patenting as being unpatentable over claims 1-14 of U.S. Patent No. 11,984,576. Although the claims at issue are not identical, they are not patentably distinct from each other because both recite a method for producing a coating on the surface of the alkali metal wherein the method includes applying a material under pressure to a surface of an alkali metal and moving the applied material relative to the surface of the alkali metal under pressure to produce a friction that alloys the material with the alkali metal. The surface of the alkali metal may be texturized before the material is applied to the alkali metal. The material may be a carbon nanomaterial, phosphorous or sulfur. 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 21-29 are rejected under 35 U.S.C. 112(b) or 35 U.S.C. 112 (pre-AIA ), second paragraph, as being indefinite for failing to particularly point out and distinctly claim the subject matter which the inventor or a joint inventor (or for applications subject to pre-AIA 35 U.S.C. 112, the applicant), regards as the invention. Claim 21 recites the limitation "a material" in line 2, “the applied material” in line 3 and “the material” in line 4. There is insufficient antecedent basis for these limitations in the claim. See also claims 22-29 that recite “the material” and/or “the applied material” Conclusion The prior art made of record and not relied upon is considered pertinent to applicant's disclosure. Chang et al., US2021/0104735 A1, teaches: [0029] The anode active material for the lithium ion battery of the present invention can be formed using method of high-energy ball milling. In detail, the powders having elemental Si, elemental Sn, and elemental Sb are mixed in a ball mill tank. In the method of high-energy ball milling, heats are generated frictionally by the powders and the grinding ball (such as zirconia balls), thus the temperature inside the ball mill tank can be reached 300° C. Thereafter, the powders having Si, Sn, and Sb were ground into smaller particles during the ball milling process and therefore primary particles were formed. Due to the nanolization of grain, the activation energy required for alloying is reduced. The heat generated by the friction and the impact of the grinding ball makes the powders more easily alloyed. In some embodiments, during ball milling, it leads Si, Sn, and Sb to form Si—Sn—Sb alloys because of the high temperature. In other embodiments, not all of Si, Sn, and Sb form Si—Sn—Sb alloys, but leaving some of Si, Sn, and Sb which are in an elemental state. Treger et al., CN 110168781 A, teaches a battery comprising an electrode including Ga/Cu on a copper foil wherein the alloy is obtained by a friction method. Treger does not teach a alkali metal foil. See [0053] of Kim et al, US2012/0055633 A1, teaches lithium metal, with and without alloying materials is both very soft and very sticky. Any inquiry concerning this communication or earlier communications from the examiner should be directed to TRACY DOVE whose telephone number is (571)272-1285. The examiner can normally be reached M-F 9:00-3:00. 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, Nicole Buie-Hatcher can be reached at 571-270-3879. 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. /TRACY M DOVE/Primary Examiner, Art Unit 1725
Read full office action

Prosecution Timeline

Apr 11, 2024
Application Filed
Oct 16, 2026
Non-Final Rejection mailed — §112, §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
69%
Grant Probability
78%
With Interview (+9.3%)
3y 8m (~1y 1m remaining)
Median Time to Grant
Low
PTA Risk
Based on 726 resolved cases by this examiner. Grant probability derived from career allowance rate.

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