Prosecution Insights
Last updated: July 17, 2026
Application No. 18/573,706

NONAQUEOUS ELECTROLYTE SOLUTION, NONAQUEOUS SODIUM ION BATTERY, NONAQUEOUS POTASSIUM ION BATTERY, METHOD FOR PRODUCING NONAQUEOUS SODIUM ION BATTERY, AND METHOD FOR PRODUCING NONAQUEOUS POTASSIUM ION BATTERY

Non-Final OA §102
Filed
Dec 22, 2023
Priority
Jun 23, 2021 — JP 2021-104481 +1 more
Examiner
ZENG, LINGWEN R
Art Unit
Tech Center
Assignee
Central Glass Co. Ltd.
OA Round
1 (Non-Final)
76%
Grant Probability
Favorable
1-2
OA Rounds
7m
Est. Remaining
97%
With Interview

Examiner Intelligence

Grants 76% — above average
76%
Career Allowance Rate
408 granted / 534 resolved
+16.4% vs TC avg
Strong +21% interview lift
Without
With
+20.7%
Interview Lift
resolved cases with interview
Typical timeline
3y 1m
Avg Prosecution
34 currently pending
Career history
565
Total Applications
across all art units

Statute-Specific Performance

§101
0.2%
-39.8% vs TC avg
§103
91.2%
+51.2% vs TC avg
§102
6.9%
-33.1% vs TC avg
§112
0.5%
-39.5% vs TC avg
Black line = Tech Center average estimate • Based on career data from 534 resolved cases

Office Action

§102
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 . Priority Receipt is acknowledged of certified copies of papers required by 37 CFR 1.55. Information Disclosure Statement The information disclosure statements (IDS) were submitted on 12/22/2023 and 04/23/2026. The submission is in compliance with the provisions of 37 CFR 1.97. Accordingly, the information disclosure statement is being considered by the examiner. Claim Rejections - 35 USC § 102 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 19-36 are rejected under 35 U.S.C. 102 (a) (1) as being anticipated by US Patent Application Publication 2019/0006713 to Takahashi et al. With respect to claim 19, Takahashi et al. teach a nonaqueous electrolyte solution for a sodium ion battery or a potassium ion battery comprising: (I) a nonaqueous organic solvent; (II) a solute of an ionic salt; and (III) a phosphorus compound having a P—Cl bond (Takahashi et al.: Sections [0039]-[0045]). With respect to claim 20, Takahashi et al. teach the nonaqueous electrolyte solution, wherein a concentration x of the (III) satisfies 0.01 mass %≤x≤3.20 mass % in terms of a chlorine atom (Takahashi et al.: Sections [0044] and ). With respect to claim 21, instant claim is proviso upon limitation, an organochlorine compound, which is not positively required by the claim 19; therefore, the limitation of instant claims do not come into force. With respect to claim 20, Takahashi et al. teach the nonaqueous electrolyte solution, wherein the phosphorus compound having a P—Cl bond comprises phosphorus trichloride (Takahashi et al.: Section [0047]). With respect to claim 23, instant claim is proviso upon limitation, a sulfone compound having an S(=O)2-Cl, which is not positively required by the claim 19; therefore, the limitation of instant claims do not come into force. With respect to claim 24, instant claim is proviso upon limitation, a sulfine compound having an S(=O)-Cl bond, which is not positively required by the claim 19; therefore, the limitation of instant claims do not come into force. With respect to claim 25, instant claim is proviso upon limitation, a silicon compound having a Si-Cl bond, which is not positively required by the claim 19; therefore, the limitation of instant claims do not come into force. With respect to claim 26, Takahashi et al. teach the nonaqueous electrolyte solution, wherein the (II) is an ionic salt containing a pair of a cation consisting of sodium, and a hexafluorophosphate anion (Takahashi et al.: Sections [0053] and [0055]). With respect to claim 27, Takahashi et al. teach the nonaqueous electrolyte solution, wherein the (II) is an ionic salt containing a pair of a cation consisting of potassium, and a hexafluorophosphate anion (Takahashi et al.: Sections [0053] and [0055]). With respect to claim 28, Takahashi et al. teach the nonaqueous electrolyte solution, wherein the (I) comprises dibutyl ether (a chain ether) (Takahashi et al.: Section [0056]). With respect to claim 29, instant claim is proviso upon limitation, a cyclic ester, which is not positively required by the claim 28; therefore, the limitation of instant claims do not come into force. With respect to claim 30, instant claim is proviso upon limitation, a chain ester, which is not positively required by the claim 28; therefore, the limitation of instant claims do not come into force. With respect to claim 31, Takahashi et al. teach the nonaqueous electrolyte solution, wherein the (I) comprises ethylene carbonate (Takahashi et al.: Section [0056]). With respect to claim 32, Takahashi et al. teach the nonaqueous electrolyte solution, further comprising cyclohexylbenzene (Takahashi et al.: Section [0093]). With respect to claim 33, Takahashi et al. teach a nonaqueous sodium ion battery comprising: at least a positive electrode; a negative electrode; and the nonaqueous electrolyte solution (Takahashi et al.: Sections [0055] and [0059]). With respect to claim 34, Takahashi et al. teach a nonaqueous potassium ion battery comprising: at least a positive electrode; a negative electrode; and the nonaqueous electrolyte solution (Takahashi et al.: Sections [0055] and [0059]). With respect to claim 35, Takahashi et al. teach a method for producing a nonaqueous sodium ion battery, comprising: preparing the nonaqueous electrolyte solution; and filling an empty cell including at least a positive electrode and a negative electrode with the nonaqueous electrolyte solution (Takahashi et al.: Sections [0055] and [0059]). With respect to claim 36, Takahashi et al. teach a method for producing a nonaqueous potassium ion battery, comprising: preparing the nonaqueous electrolyte solution; and filling an empty cell including at least a positive electrode and a negative electrode with the nonaqueous electrolyte solution (Takahashi et al.: Sections [0055] and [0059]). Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to LINGWEN R ZENG whose telephone number is (571)272-6649. The examiner can normally be reached 8am-5pm. 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, Tiffany Legette can be reached on (571) 270-7078. 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. /LINGWEN R ZENG/Examiner, Art Unit 1723 6/13/2026
Read full office action

Prosecution Timeline

Dec 22, 2023
Application Filed
Dec 22, 2023
Response after Non-Final Action
Jun 17, 2026
Non-Final Rejection mailed — §102 (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
76%
Grant Probability
97%
With Interview (+20.7%)
3y 1m (~7m remaining)
Median Time to Grant
Low
PTA Risk
Based on 534 resolved cases by this examiner. Grant probability derived from career allowance rate.

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