Prosecution Insights
Last updated: April 19, 2026
Application No. 18/100,096

A REVERSIBLE F-ION INTERCALATION HOST FOR USE IN ROOM TEMPERATURE F-ION BATTERIES

Final Rejection §102§103§112
Filed
Jan 23, 2023
Examiner
EOFF, ANCA
Art Unit
1722
Tech Center
1700 — Chemical & Materials Engineering
Assignee
UNIVERSITY OF SOUTHERN CALIFORNIA
OA Round
2 (Final)
80%
Grant Probability
Favorable
3-4
OA Rounds
2y 10m
To Grant
91%
With Interview

Examiner Intelligence

Grants 80% — above average
80%
Career Allow Rate
982 granted / 1230 resolved
+14.8% vs TC avg
Moderate +11% lift
Without
With
+11.3%
Interview Lift
resolved cases with interview
Typical timeline
2y 10m
Avg Prosecution
48 currently pending
Career history
1278
Total Applications
across all art units

Statute-Specific Performance

§101
0.2%
-39.8% vs TC avg
§103
47.1%
+7.1% vs TC avg
§102
20.0%
-20.0% vs TC avg
§112
20.0%
-20.0% vs TC avg
Black line = Tech Center average estimate • Based on career data from 1230 resolved cases

Office Action

§102 §103 §112
DETAILED ACTION The present application, filed on or after March 16, 2013, is being examined under the first inventor to file provisions of the AIA . Claims 1, 2, and 4-22 are pending. Claim 3 has been canceled. Claim Objections Claims 15 and 22 are objected to because of the following informalities: The limitation “b) the fluoride composition of the general formula” in claims 15 and 22 should be amended to recite “b) the fluoride composition is represented by the general formula”. Appropriate correction is required. 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 9-22 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. The independent claims 9, 12, and 16 recite the limitation “A1-2MM’F6-7”, but fail to define A, M, and M’. Therefore, it is not clear what is the joint inventor claiming as the invention in claims 9, 12, and 16. Claims 10, 11, and 13-15 are rejected as being dependent on the rejected claim 9, and claims 17-22 are rejected as being dependent on the rejected claim 16. 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. Claim 4 is 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 4 depends on claim 1 and recites the limitation “wherein the fluoride composition comprises one of: mechanochemical materials, ceramic materials, and hydrothermal materials”. However, the independent claim 1 has been amended to recite “the fluoride composition comprises mechanochemical materials”. Therefore, claim 4 fails to further limit the subject matter in claim 1. Applicant may cancel the claim, amend the claim to place the claim in proper dependent form, rewrite the claims in independent form, or present a sufficient showing that the dependent claims comply with the statutory requirements. Claim Rejections - 35 USC § 102 The following is a quotation of the appropriate paragraph of 35 U.S.C. 102 that forms 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 2 is rejected under 35 U.S.C. 102(a)(1) as being anticipated by Raju et al. (‘X-ray photoelectron spectroscopic studies of flux grown CsMnFeF6 single crystals”). With regard to claim 2, Raju et al. teach CsMnFeF6 (abstract), wherein the compound of formula CsMnFeF6 has Cs+, Mn2+, and Fe3+ each linked to fluorine (see the fourth paragraph in the left column, page 1706). CsMnFeF6 is a compound of formula A1MM’F6, wherein A is Cs+, M is Mn2+, and M’ is Fe3+. The oxidation state of Mn2+ and Fe3+ are such that CsMnFeF6 is charge balanced. Par.0005 of the instant application defines that composition (a) of formula AMIIMIIIF6, wherein A may be Cs, MII may be Mn, and MIII may be Fe is configured for fluoride ion intercalation. Therefore, absent a record to the contrary, CsMnFeF6 of Raju et al. is configured for fluoride ion intercalation and the reversible (de) insertion of F-ions dominates the electrochemistr of the compound "[T]he discovery of a previously unappreciated property of a prior art composition, or of a scientific explanation for the prior art’s functioning, does not render the old composition patentably new to the discoverer." Atlas Powder Co. v. IRECO Inc., 190 F.3d 1342, 1347, 51 USPQ2d 1943, 1947 (Fed. Cir. 1999). Thus the claiming of a new use, new function or unknown property which is inherently present in the prior art does not necessarily make the claim patentable. In re Best, 562 F.2d 1252, 1254, 195 USPQ 430, 433 (CCPA 1977) (MPEP 2112. I. SOMETHING WHICH IS OLD DOES NOT BECOME PATENTABLE UPON THE DISCOVERY OF A NEW PROPERTY). Allowable Subject Matter Claims 1 and 5-8 are allowed. The prior art does not teach the fluoride compositions in claim 1 of the instant application. Response to Arguments Applicant’s arguments with respect to claims 1, 2, and 4-22 have been considered but are moot because the new ground of rejection does not rely on any reference applied in the prior rejection of record for any teaching or matter specifically challenged in the argument. The examiner would like to note that: -the objection to the abstract is withdrawn after the filing of a new abstract; -the objection to the drawing is withdrawn after the filing of the replacement fig.2A; -the rejection of claims 1-22 under 35 U.S.C. 112(b) or 35 U.S.C. 112 (pre-AIA ), second paragraph is withdrawn after the applicant’s amendments to claims 1, 9, 12, 15, 16, 18, and 22; -the rejection of claims 1, 2, and 6 under 35 U.S.C. 102(a)(1) as being anticipated by Raju (“Characterization of modified pyrochlores CsMFeF6 (M=Mn, Co, and Zn)”) is withdrawn after the applicant’s amendment to claim 1; -the rejection of claims 1, 7, and 8 under 35 U.S.C. 102(a)(1) as being anticipated by Euchner et al. (“Unlocking the potential of weberite-type metal fluorides in electrochemical energy storage”) is withdrawn after the applicant’s amendment to claim 1; and -the rejection of claims 3 and 4 under 35 U.S.C. 102(a)(1) as anticipated by or, in the alternative, under 35 U.S.C. 103 as obvious over Raju (“Characterization of modified pyrochlores CsMFeF6 (M=Mn, Co, and Zn)”) is withdrawn after the applicant’s amendment to claim 1. However, new grounds of rejection for claims 2, 4, and 9-22 are presented in paragraphs 4-9 above. Conclusion Applicant's amendment necessitated the new grounds of rejection presented in this Office action. Accordingly, THIS ACTION IS MADE FINAL. See MPEP § 706.07(a). Applicant is reminded of the extension of time policy as set forth in 37 CFR 1.136(a). A shortened statutory period for reply to this final action is set to expire THREE MONTHS from the mailing date of this action. In the event a first reply is filed within TWO MONTHS of the mailing date of this final action and the advisory action is not mailed until after the end of the THREE-MONTH shortened statutory period, then the shortened statutory period will expire on the date the advisory action is mailed, and any nonprovisional extension fee (37 CFR 1.17(a)) pursuant to 37 CFR 1.136(a) will be calculated from the mailing date of the advisory action. In no event, however, will the statutory period for reply expire later than SIX MONTHS from the mailing date of this final action. Any inquiry concerning this communication or earlier communications from the examiner should be directed to ANCA EOFF whose telephone number is (571)272-9810. The examiner can normally be reached Mon-Fri 10am-6:30pm. 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, Niki Bakhtiari can be reached at (571)272-3433. 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. /ANCA EOFF/Primary Examiner, Art Unit 1722
Read full office action

Prosecution Timeline

Jan 23, 2023
Application Filed
Jul 16, 2025
Non-Final Rejection — §102, §103, §112
Oct 20, 2025
Response Filed
Feb 23, 2026
Final Rejection — §102, §103, §112 (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

3-4
Expected OA Rounds
80%
Grant Probability
91%
With Interview (+11.3%)
2y 10m
Median Time to Grant
Moderate
PTA Risk
Based on 1230 resolved cases by this examiner. Grant probability derived from career allow rate.

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