Prosecution Insights
Last updated: April 18, 2026
Application No. 17/999,014

CROSSLINKER FOR ELECTROLYTE, ELECTROLYTE COMPOSITIONS AND LITHIUM-ION BATTERY INCLUDING THE SAME

Final Rejection §102
Filed
Nov 16, 2022
Examiner
PARK, LISA S
Art Unit
1729
Tech Center
1700 — Chemical & Materials Engineering
Assignee
National Cheng Kung University
OA Round
2 (Final)
77%
Grant Probability
Favorable
3-4
OA Rounds
3y 0m
To Grant
99%
With Interview

Examiner Intelligence

Grants 77% — above average
77%
Career Allow Rate
551 granted / 716 resolved
+12.0% vs TC avg
Strong +24% interview lift
Without
With
+23.8%
Interview Lift
resolved cases with interview
Typical timeline
3y 0m
Avg Prosecution
45 currently pending
Career history
761
Total Applications
across all art units

Statute-Specific Performance

§101
0.9%
-39.1% vs TC avg
§103
50.3%
+10.3% vs TC avg
§102
20.0%
-20.0% vs TC avg
§112
21.5%
-18.5% vs TC avg
Black line = Tech Center average estimate • Based on career data from 716 resolved cases

Office Action

§102
DETAILED CORRESPONDENCE 1. The text of those sections of Title 35, U.S. Code not included in this action can be found in a prior Office action. Notice of Pre-AIA or AIA Status 2. 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 Amendment 3. In response to the amendment received on 11/12/2025: Claims 1-4 and 7-24 are pending in the current application. Claims 1-4, 7-, 9-19 and 23-24 have been amended, Claims 5-6 are cancelled, and Claims 7-24 stand withdrawn. The cores of the previous prior art-based rejections have been overcome in light of the amendment. All changes made to the rejection are necessitated by the amendment. Claim Interpretation 4. All “wherein” clauses are given patentable weight unless otherwise noted. Please see MPEP 2111.04 regarding optional claim language. 5. The pending claims recite “a crosslinker” and “for electrolytes”. The Office notes that neither term gives patentable weight to the claims. They are only seen as intended uses for which the cited materials are capable. Please see MPEP 2111.02 for more on the effect of the preamble. Claim Rejections - 35 USC § 102 6. Claims 1-4 are rejected under 35 U.S.C. 102(a)(1) as being anticipated by Gao CN108558598. Regarding Claims 1-4, Gao discloses in paras 0014-0017 the following crosslinker formula where in formula (1), R is polyethoxy with a degree of polymerization of 2 (in accordance with the scope described by the instant application in para 0037 of the submitted disclosure) and M is a monovalent imidazolium ion (meeting Claim 2) and X is a monovalent halogen-containing anion, Br- (meeting Claims 3 and 4): 1H-Imidazolium, 1,1'-[1,2-ethanediylbis(oxy-2,1-ethanediyl)]bis[3-ethenyl-, bromide PNG media_image1.png 93 655 media_image1.png Greyscale Response to Arguments 7. Applicant's arguments with respect to the claims are based on the claims as amended. The amended claims have been addressed in the new rejection above. Conclusion 8. Applicant's amendment necessitated the new ground(s) 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 extension fee 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 date of this final action. Any inquiry concerning this communication or earlier communications from the examiner should be directed to LISA S PARK whose telephone number is (571)270-3597. The examiner can normally be reached M-Th 5:30a to 3p Eastern Time. 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, Ula Tavares-Crockett can be reached on 5712721481. 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. /LISA S PARK/Primary Examiner, Art Unit 1729
Read full office action

Prosecution Timeline

Nov 16, 2022
Application Filed
Aug 09, 2025
Non-Final Rejection — §102
Nov 12, 2025
Response Filed
Jan 08, 2026
Final Rejection — §102
Apr 13, 2026
Request for Continued Examination
Apr 16, 2026
Response after Non-Final Action

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12603356
MULTI-LAYER PROTECTION ELEMENT FOR A BATTERY
2y 5m to grant Granted Apr 14, 2026
Patent 12603358
BATTERY HOUSING AND BATTERY SYSTEM COMPRISING SUCH A HOUSING
2y 5m to grant Granted Apr 14, 2026
Patent 12603292
ENERGY STORAGE DEVICE
2y 5m to grant Granted Apr 14, 2026
Patent 12597626
Apparatus for Adhering of Tape for Rechargeable Battery and Method Using the Same
2y 5m to grant Granted Apr 07, 2026
Patent 12586842
SWAPPABLE BATTERY MODULES COMPRISING IMMERSION-THERMALLY CONTROLLED PRISMATIC BATTERY CELLS AND METHODS OF FABRICATING THEREOF
2y 5m to grant Granted Mar 24, 2026
Study what changed to get past this examiner. Based on 5 most recent grants.

AI Strategy Recommendation

Get an AI-powered prosecution strategy using examiner precedents, rejection analysis, and claim mapping.
Powered by AI — typically takes 5-10 seconds

Prosecution Projections

3-4
Expected OA Rounds
77%
Grant Probability
99%
With Interview (+23.8%)
3y 0m
Median Time to Grant
Moderate
PTA Risk
Based on 716 resolved cases by this examiner. Grant probability derived from career allow rate.

Sign in with your work email

Enter your email to receive a magic link. No password needed.

Personal email addresses (Gmail, Yahoo, etc.) are not accepted.

Free tier: 3 strategy analyses per month