Prosecution Insights
Last updated: July 17, 2026
Application No. 17/923,277

SOLID ELECTROLYTE, ELECTRODE MIXTURE AND BATTERY

Final Rejection §103
Filed
Nov 04, 2022
Priority
Jun 10, 2020 — JP 2020-100733 +1 more
Examiner
JOHNSON, JONATHAN J
Art Unit
1700
Tech Center
1700 — Chemical & Materials Engineering
Assignee
Mitsui Mining & Smelting Co., Ltd.
OA Round
3 (Final)
33%
Grant Probability
At Risk
4-5
OA Rounds
3m
Est. Remaining
25%
With Interview

Examiner Intelligence

Grants only 33% of cases
33%
Career Allowance Rate
36 granted / 109 resolved
-32.0% vs TC avg
Minimal -8% lift
Without
With
+-8.1%
Interview Lift
resolved cases with interview
Typical timeline
3y 11m
Avg Prosecution
16 currently pending
Career history
132
Total Applications
across all art units

Statute-Specific Performance

§103
84.0%
+44.0% vs TC avg
§102
4.1%
-35.9% vs TC avg
§112
1.4%
-38.6% vs TC avg
Black line = Tech Center average estimate • Based on career data from 109 resolved cases

Office Action

§103
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 argues Takahashi’s example 4 contains all of the constituent elements of claim 1 except for the oxygen element. (p. 4). Applicant argues that since Takahashi’s example 4 does not show the claimed peaks, one of ordinary skill in the art would understand that none of the examples would have the claimed peaks. (pp. 5 and 6). The examiner disagrees. As explained in the previous office action, comparative example 3, which is relied upon in the rejection, meet the claimed molar ratios of X/P and O/P. Applicant does not show or explain how the molar ratio differences affect the XRD patterns. Indeed, as explained in the previous office action, the declaration is based on molar ratios of X/P and O/P outside that of the claimed invention and therefore, is not commensurate in scope of the claimed invention. As such, the declaration and arguments are not persuasive. Claim Rejections - 35 USC § 103 Claims 1-7 are rejected under 35 U.S.C. 103 as being unpatentable over Takahashi et all., WO 2019176895 (IDS of 11/4/22) relying on U.S. PGPub 2021/0013542 as English translation. With regard to claims 1-5, Takahashi et al. teach a solid electrolyte comprising elemental lithium (Li), elemental phosphorous (P), elemental sulfur (S), and elemental halogen (Cl, Br), and oxygen (O). See abstract, [0002], [0010], [0018], [0020], [0021], [0023], [0024], [0029], [0031], and [0034]. Further, Takahashi et al. teach that the solid electrolyte has a crystalline phase with an argyrodite-type crystal structure. See abstract, [0002], [0009], [0010], [0011], [0018], and [0029]. In addition, Takahashi et al. teach a molar ratio of (halogen/phosphorous) Cl/P of 1.75 [10.2/5.8] and a molar ratio of (oxygen/phosphorous) O/P of 0.12 [0.7/5.8], both ratios falling within their respective claimed range. See Table 3, “Particle Surface” of 100 nm. Takahashi et al. is silent in an X-ray diffraction pattern, the solid electrolyte exhibits: peak A in a range of 2ꝋ = 21.6o to 22.6o; peak B in a range of 2ꝋ = 22.7o to 23.7o; and peak C in a range of 2ꝋ = 35.8o to 36.8o, the X-ray diffraction pattern being obtained by an X-ray diffractometer using CuKα1 radiation; wherein the solid electrolyte exhibits peak M in a range of 2 ꝋ = 24.2o to 26.2o in an X-ray diffraction pattern obtained by an X-ray diffractometer using CuKα1 radiation, and a ratio of IA to IM, IA/IM, is more than 0 and less than 0.03, wherein IA represents an intensity of the peak A and IM represents an intensity of the peak M (claim 2); wherein the solid electrolyte exhibits peak M in a range of 2ꝋ = 24.2o to 26.2o in an X-ray diffraction pattern obtained by an X-ray diffractometer using CuKα1 radiation, and a ratio of IB to IM, IB/IM, is more than 0 and 0.025 or less, wherein IB represents an intensity of the peak B and IM represents an intensity of the peak M (claim 3); wherein the solid electrolyte exhibits peak M in a range of 2ꝋ = 24.2o to 26.2o in an X-ray diffraction pattern obtained by an X-ray diffractometer using CuKα1 radiation, and a ratio of IC to IM, lC/IM, is more than 0 and 0.012 or less, wherein IC represents an intensity of the peak C and IM represents an intensity of the peak M (claim 4); and wherein in an X-ray diffraction pattern, the solid electrolyte exhibits: peak D in a range of 2ꝋ = 32.00 to 35.30; and peak M in a range of 2ꝋ = 24.2o to 26.2o the X-ray diffraction pattern being obtained by an X-ray diffractometer using CuKα1 radiation, and a ratio of ID to IM, ID/IM, is less than 0.21, wherein ID represents an intensity of the peak D and IM represents an intensity of the peak M (claim 5). However, as there is no clear compositional distinction between the solid electrolyte of Takahashi et al. comprises the Li, P, S, (Cl, Br), and O elements, as well as the molar ratios O/P and Cl/P and argyrodite crystal structure, and that of the claim, it would be inherent and/or expected for the solid electrolyte of Takahashi to exhibit X-ray diffraction pattern of peak A, peak B, and peak C obtained by an X-ray diffractometer using CuKα1 radiation, as well as peak W; wherein the solid electrolyte exhibits peak M in a range of 2ꝋ = 24.2o to 26.2o in an X-ray diffraction pattern obtained by an X-ray diffractometer using CuKα1 radiation, and a ratio of IB to IM, IB/IM, is more than 0 and 0.025 or less, wherein IB represents an intensity of the peak B and IM represents an intensity of the peak M; wherein the solid electrolyte exhibits peak M in a range of 2ꝋ = 24.2o to 26.2o in an X-ray diffraction pattern obtained by an X-ray diffractometer using CuKα1 radiation, and a ratio of IC to IM, lC/IM, is more than 0 and 0.012 or less, wherein Ic represents an intensity of the peak C and IM represents an intensity of the peak M; and wherein in an X-ray diffraction pattern, the solid electrolyte exhibits: peak D in a range of 2ꝋ = 32.00 to 35.30; and peak M in a range of 2ꝋ = 24.2o to 26.2o the X-ray diffraction pattern being obtained by an X-ray diffractometer using CuKα1 radiation, and a ratio of ID to IM, ID/IM, is less than 0.21, wherein ID represents an intensity of the peak D and IM represents an intensity of the peak M. MPEP 2112.01, I. With regard to claim 6, Takahashi et al. teaches the solid electrolyte mixed with an active material. See [0044]. With regard to claim 7, Takahashi et al. teach an all-state lithium secondary battery comprising a positive electrode, a negative electrode, and a solid electrolyte layer of claim 1 interposed between the positive electrode layer and the negative electrode layer. See [0070]. Conclusion All claims are identical to or patentably indistinct from, or have unity of invention with claims in the application prior to the entry of the submission under 37 CFR 1.114 (that is, restriction (including a lack of unity of invention) would not be proper) and all claims could have been finally rejected on the grounds and art of record in the next Office action if they had been entered in the application prior to entry under 37 CFR 1.114. Accordingly, THIS ACTION IS MADE FINAL even though it is a first action after the filing of a request for continued examination and the submission under 37 CFR 1.114. See MPEP § 706.07(b). 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 JONATHAN J JOHNSON whose telephone number is (571)272-1177. The examiner can normally be reached Monday-Friday, 6:30 AM - 3 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, Alexa Neckel can be reached at 571-272-2450. 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. JONATHAN JOHNSON Primary Examiner Art Unit 1734 /JONATHAN JOHNSON/Primary Examiner, Art Unit 1734
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Prosecution Timeline

Nov 04, 2022
Application Filed
May 13, 2025
Non-Final Rejection mailed — §103
Sep 12, 2025
Response Filed
Sep 18, 2025
Response after Non-Final Action
Nov 05, 2025
Final Rejection mailed — §103
Apr 30, 2026
Request for Continued Examination
May 02, 2026
Response after Non-Final Action
May 11, 2026
Final Rejection mailed — §103 (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

4-5
Expected OA Rounds
33%
Grant Probability
25%
With Interview (-8.1%)
3y 11m (~3m remaining)
Median Time to Grant
High
PTA Risk
Based on 109 resolved cases by this examiner. Grant probability derived from career allowance rate.

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