Prosecution Insights
Last updated: October 02, 2026
Application No. 18/292,092

Compound and Method for Preparing Same

Final Rejection §102
Filed
Jan 25, 2024
Priority
Aug 13, 2021 — RE 10-2021-0107249 +1 more
Examiner
CHEN, PO-CHIH
Art Unit
1621
Tech Center
1600 — Biotechnology & Organic Chemistry
Assignee
LG Energy Solution Ltd.
OA Round
2 (Final)
74%
Grant Probability
Favorable
3-4
OA Rounds
0m
Est. Remaining
89%
With Interview

Examiner Intelligence

Grants 74% — above average
74%
Career Allowance Rate
572 granted / 771 resolved
+14.2% vs TC avg
Moderate +15% lift
Without
With
+14.8%
Interview Lift
resolved cases with interview
Typical timeline
2y 5m
Avg Prosecution
51 currently pending
Career history
806
Total Applications
across all art units

Statute-Specific Performance

§101
1.0%
-39.0% vs TC avg
§103
33.4%
-6.6% vs TC avg
§102
19.0%
-21.0% vs TC avg
§112
30.8%
-9.2% vs TC avg
Black line = Tech Center average estimate • Based on career data from 771 resolved cases

Office Action

§102
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 This office action is a response to Applicant’s amendments/remarks after non-final rejection filed 7/6/2026. As filed, claims 1-9 are pending. Information Disclosure Statement The information disclosure statement (IDS) submitted on 8/6/2026 has been considered by the Examiner. Priority Acknowledgment is made of applicant's claim for foreign priority based on an application filed in Korea on 8/13/2021 (i.e. Application No. KR10-2021-0107249). It is noted that applicant has filed a certified English translation of the abovementioned foreign application on 7/6/2026. Accordingly, the Applicant acquired the benefit of foreign priority to application No. KR10-2021-0107249 filed on 8/13/2021 under 35 U.S.C. 119(a)-(d). Response to Amendments/Remarks Applicant’s amendments/remarks, filed 7/6/2026, with respect to claims 1-9, have been fully considered and are entered. The status for each rejection in the previous Office Action is set out below. The § 102(a)(1) rejection of claim 1 by Marquez is withdrawn per amendments. The § 102(a)(1) rejection of claims 1-3 by CAS729 is withdrawn because the effective filing date of claims 1-3 is now 8/13/2021 after Applicant’s submission of the certified English translation of the abovementioned foreign priority document. Because the publication date of CAS729 is 4/12/2022, which is after the abovementioned effective filing date of the instant application, CAS729 is disqualified as prior art. 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)(2) the claimed invention was described in a patent issued under section 151, or in an application for patent published or deemed published under section 122(b), in which the patent or application, as the case may be, names another inventor and was effectively filed before the effective filing date of the claimed invention. Claims 1-3 are rejected under 35 U.S.C. 102(a)(2) as being anticipated by U.S. Patent No. 12,573,661, hereinafter Kim. The applied reference has a common assignee/inventor with the instant application. Based upon the earlier effectively filed date of the reference, it constitutes prior art under 35 U.S.C. 102(a)(2). This rejection under 35 U.S.C. 102(a)(2) might be overcome by: (1) a showing under 37 CFR 1.130(a) that the subject matter disclosed in the reference was obtained directly or indirectly from the inventor or a joint inventor of this application and is thus not prior art in accordance with 35 U.S.C. 102(b)(2)(A); (2) a showing under 37 CFR 1.130(b) of a prior public disclosure under 35 U.S.C. 102(b)(2)(B) if the same invention is not being claimed; or (3) a statement pursuant to 35 U.S.C. 102(b)(2)(C) establishing that, not later than the effective filing date of the claimed invention, the subject matter disclosed in the reference and the claimed invention were either owned by the same person or subject to an obligation of assignment to the same person or subject to a joint research agreement. Regarding claims 1-3, Kim, for instance, teaches the compound of 5-(hydroxymethyl)-1,2-oxathiolane 2,2,-dioxide, which has the following structure. All of which meet all the limitation of these claims. PNG media_image1.png 104 164 media_image1.png Greyscale Wherein: instant variables R1-R8 are H; and instant variable m is 0. PNG media_image2.png 292 446 media_image2.png Greyscale (column 12, lines 45-60) Claims 1-3 are rejected under 35 U.S.C. 102(a)(2) as being anticipated by U.S. Patent No. 12,686,670, hereinafter Kim1. The applied reference has a common assignee/inventor with the instant application. Based upon the earlier effectively filed date of the reference, it constitutes prior art under 35 U.S.C. 102(a)(2). This rejection under 35 U.S.C. 102(a)(2) might be overcome by: (1) a showing under 37 CFR 1.130(a) that the subject matter disclosed in the reference was obtained directly or indirectly from the inventor or a joint inventor of this application and is thus not prior art in accordance with 35 U.S.C. 102(b)(2)(A); (2) a showing under 37 CFR 1.130(b) of a prior public disclosure under 35 U.S.C. 102(b)(2)(B) if the same invention is not being claimed; or (3) a statement pursuant to 35 U.S.C. 102(b)(2)(C) establishing that, not later than the effective filing date of the claimed invention, the subject matter disclosed in the reference and the claimed invention were either owned by the same person or subject to an obligation of assignment to the same person or subject to a joint research agreement. Regarding claims 1-3, Kim1, for instance, teaches the compound of 5-(hydroxymethyl)-1,2-oxathiolane 2,2,-dioxide, which has the following structure. All of which meet all the limitation of these claims. PNG media_image1.png 104 164 media_image1.png Greyscale Wherein: instant variables R1-R8 are H; and instant variable m is 0. PNG media_image3.png 310 426 media_image3.png Greyscale (column 14, lines 22-37) Claims 1-3 are rejected under 35 U.S.C. 102(a)(2) as being anticipated by U.S. Patent Application Publication No. 2024/0014443, hereinafter Kim2. The applied reference has a common assignee/inventor with the instant application. Based upon the earlier effectively filed date of the reference, it constitutes prior art under 35 U.S.C. 102(a)(2). This rejection under 35 U.S.C. 102(a)(2) might be overcome by: (1) a showing under 37 CFR 1.130(a) that the subject matter disclosed in the reference was obtained directly or indirectly from the inventor or a joint inventor of this application and is thus not prior art in accordance with 35 U.S.C. 102(b)(2)(A); (2) a showing under 37 CFR 1.130(b) of a prior public disclosure under 35 U.S.C. 102(b)(2)(B) if the same invention is not being claimed; or (3) a statement pursuant to 35 U.S.C. 102(b)(2)(C) establishing that, not later than the effective filing date of the claimed invention, the subject matter disclosed in the reference and the claimed invention were either owned by the same person or subject to an obligation of assignment to the same person or subject to a joint research agreement. Regarding claims 1-3, Kim2, for instance, teaches the compound of 3-hydroxymethyl-1,3-propane sultone, which has the following structure. All of which meet all the limitation of these claims. PNG media_image1.png 104 164 media_image1.png Greyscale Wherein: instant variables R1-R8 are H; and instant variable m is 0. PNG media_image4.png 174 420 media_image4.png Greyscale (pg. 12, paragraph 0136) Allowable Subject Matter Claims 4-9 are objected to as being dependent upon a rejected base claim, but would be allowable if rewritten in independent form including all of the limitations of the base claim and any intervening claims. Conclusion Claims 1-3 are rejected. Claims 4-9 are objected. 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 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. Telephone Inquiry Any inquiry concerning this communication or earlier communications from the examiner should be directed to PO-CHIH CHEN whose telephone number is (571)270-7243. The examiner can normally be reached Monday - Friday 10:00 am to 6:00 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, Clinton Brooks can be reached at (571)270-7682. 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. /PO-CHIH CHEN/Primary Examiner, Art Unit 1621
Read full office action

Prosecution Timeline

Jan 25, 2024
Application Filed
Mar 12, 2026
Non-Final Rejection mailed — §102
Jul 06, 2026
Response Filed
Sep 21, 2026
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

3-4
Expected OA Rounds
74%
Grant Probability
89%
With Interview (+14.8%)
2y 5m (~0m remaining)
Median Time to Grant
Moderate
PTA Risk
Based on 771 resolved cases by this examiner. Grant probability derived from career allowance rate.

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