Prosecution Insights
Last updated: October 04, 2026
Application No. 18/258,986

POROUS SILICON COMPOSITE, POROUS SILICON-CARBON COMPOSITE COMPRISING SAME, AND ANODE ACTIVE MATERIAL

Final Rejection §103§112
Filed
Jun 22, 2023
Priority
Dec 13, 2020 — RE 10-2020-0182263 +1 more
Examiner
USYATINSKY, ALEXANDER
Art Unit
1751
Tech Center
1700 — Chemical & Materials Engineering
Assignee
Daejoo Electronic Materials Co. Ltd.
OA Round
2 (Final)
83%
Grant Probability
Favorable
3-4
OA Rounds
0m
Est. Remaining
99%
With Interview

Examiner Intelligence

Grants 83% — above average
83%
Career Allowance Rate
754 granted / 907 resolved
+18.1% vs TC avg
Strong +19% interview lift
Without
With
+19.0%
Interview Lift
resolved cases with interview
Typical timeline
2y 9m
Avg Prosecution
35 currently pending
Career history
927
Total Applications
across all art units

Statute-Specific Performance

§101
0.2%
-39.8% vs TC avg
§103
48.4%
+8.4% vs TC avg
§102
17.2%
-22.8% vs TC avg
§112
26.2%
-13.8% vs TC avg
Black line = Tech Center average estimate • Based on career data from 907 resolved cases

Office Action

§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 Status. This Office Action is responsive to the amendment filed on 05/15/2026. Claims 1-4,7-8, 11-13, 15, 18-20,24 and 27 were pending.. Claims 1,2, 4, 7-8, 11-13, 15, 18-20, 24 and 27 are now pending. Claims 1 ,2, 4, 7-8, 11-13, 15, 18-20, 24 and 27 are presented for examination. Applicant's arguments have been considered. 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. Claim 1 is rejected under 35 U.S.C. 112(b) 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. In claim 1 it is not clear what silicon porous composites are claimed : a composition comprising: a) magnesium silicate magnesium orthosilicate or a mixture thereof, b) magnesium fluoride, magnesium fluoride silicate or a mixture thereof or c) mixture of magnesium silicate magnesium orthosilicate or a mixture thereof, b) magnesium fluoride, magnesium fluoride silicate. In other word, three different composition are claimed in claim 1, which makes claim 1 indefinite. MPEP 2173.06 states that First, where the degree of uncertainty is not great, and where the claim is subject to more than one interpretation and at least one interpretation would render the claim unpatentable over the prior art, an appropriate course of action would be for the examiner to enter two rejections: (A) a rejection based on indefiniteness under 35 U.S.C. 112, second paragraph; and (B) a rejection over the prior art based on the interpretation of the claims which renders the prior art applicable. See, e.g., Ex parte Ionescu, 222 USPQ 537 (Bd. App. 1984). When making a rejection over prior art in these circumstances, it is important for the examiner to point out how the claim is being interpreted. Second, where there is a great deal of confusion and uncertainty as to the proper interpretation of the limitations of a claim, it would not be proper to reject such a claim on the basis of prior art. As stated in In re Steele, 305 F.2d 859, 134 USPQ 292 (CCPA 1962), a rejection under 35 U.S.C. 103 should not be based on considerable speculation about the meaning of terms employed in a claim or assumptions that must be made as to the scope of the claims. Claims 2, 4, 7-8, 11-13, 15, 18-20, 24 and 27 depend from claim 1 directly or indirectly and fall therewith. In addition, claim 4 depends from cancelled claim 3. Response to Arguments Applicant’s arguments with respect to claims 1-4,7-8, 11-13, 15, 18-20,24 and 27 have been considered but are moot because the new ground of rejection (112 (b)) Conclusion The prior art made of record and not relied upon is considered pertinent to applicant's disclosure: JPO decision to grant a Patent for JP2023538777. 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. Any inquiry concerning this communication or earlier communications from the examiner should be directed to ALEXANDER USYATINSKY whose telephone number is (571)270-7703. The examiner can normally be reached IFP. 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, Jonathan Leong can be reached at (571) 270-1292. 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. /Alexander Usyatinsky/ Primary Examiner, Art Unit 1751
Read full office action

Prosecution Timeline

Jun 22, 2023
Application Filed
Feb 18, 2026
Non-Final Rejection mailed — §103, §112
May 15, 2026
Response Filed
Aug 05, 2026
Final Rejection mailed — §103, §112 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12749777
SECONDARY BATTERY
3y 8m to grant Granted Sep 29, 2026
Patent 12749728
CONFIGURING BATTERY PACKS FOR COMPUTER SYSTEMS
3y 6m to grant Granted Sep 29, 2026
Patent 12744273
BATTERY MODULE HAVING PRESSURE SENSOR FOR DETECTING THERMAL PROPAGATION
3y 4m to grant Granted Sep 22, 2026
Patent 12719073
REDOX RELAY FLOW BATTERIES AND METHODS OF MAKING THE SAME
3y 9m to grant Granted Aug 25, 2026
Patent 12719117
Battery Cell, and Battery Module, Battery Pack and Vehicle Including the Same
3y 10m to grant Granted Aug 25, 2026
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
83%
Grant Probability
99%
With Interview (+19.0%)
2y 9m (~0m remaining)
Median Time to Grant
Moderate
PTA Risk
Based on 907 resolved cases by this examiner. Grant probability derived from career allowance rate.

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