Prosecution Insights
Last updated: October 02, 2026
Application No. 17/565,962

CARBON MATERIAL, METHOD FOR PRODUCING CARBON MATERIAL, AND NON-AQUEOUS SECONDARY BATTERY USING CARBON MATERIAL

Final Rejection §DP
Filed
Dec 30, 2021
Priority
Jul 07, 2014 — JP 2014-139782 +11 more
Examiner
ZHANG, HAIXIA
Art Unit
1723
Tech Center
1700 — Chemical & Materials Engineering
Assignee
Mitsubishi Chemical Corporation
OA Round
4 (Final)
63%
Grant Probability
Moderate
5-6
OA Rounds
0m
Est. Remaining
81%
With Interview

Examiner Intelligence

Grants 63% of resolved cases
63%
Career Allowance Rate
195 granted / 310 resolved
-2.1% vs TC avg
Strong +18% interview lift
Without
With
+17.8%
Interview Lift
resolved cases with interview
Typical timeline
3y 3m
Avg Prosecution
12 currently pending
Career history
323
Total Applications
across all art units

Statute-Specific Performance

§101
0.2%
-39.8% vs TC avg
§103
49.7%
+9.7% vs TC avg
§102
11.5%
-28.5% vs TC avg
§112
27.9%
-12.1% vs TC avg
Black line = Tech Center average estimate • Based on career data from 310 resolved cases

Office Action

§DP
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 Double Patenting The nonstatutory double patenting rejection is based on a judicially created doctrine grounded in public policy (a policy reflected in the statute) so as to prevent the unjustified or improper timewise extension of the “right to exclude” granted by a patent and to prevent possible harassment by multiple assignees. A nonstatutory double patenting rejection is appropriate where the conflicting claims are not identical, but at least one examined application claim is not patentably distinct from the reference claim(s) because the examined application claim is either anticipated by, or would have been obvious over, the reference claim(s). See, e.g., In re Berg, 140 F.3d 1428, 46 USPQ2d 1226 (Fed. Cir. 1998); In re Goodman, 11 F.3d 1046, 29 USPQ2d 2010 (Fed. Cir. 1993); In re Longi, 759 F.2d 887, 225 USPQ 645 (Fed. Cir. 1985); In re Van Ornum, 686 F.2d 937, 214 USPQ 761 (CCPA 1982); In re Vogel, 422 F.2d 438, 164 USPQ 619 (CCPA 1970); In re Thorington, 418 F.2d 528, 163 USPQ 644 (CCPA 1969). A timely filed terminal disclaimer in compliance with 37 CFR 1.321(c) or 1.321(d) may be used to overcome an actual or provisional rejection based on nonstatutory double patenting provided the reference application or patent either is shown to be commonly owned with the examined application, or claims an invention made as a result of activities undertaken within the scope of a joint research agreement. See MPEP § 717.02 for applications subject to examination under the first inventor to file provisions of the AIA as explained in MPEP § 2159. See MPEP § 2146 et seq. for applications not subject to examination under the first inventor to file provisions of the AIA . A terminal disclaimer must be signed in compliance with 37 CFR 1.321(b). The filing of a terminal disclaimer by itself is not a complete reply to a nonstatutory double patenting (NSDP) rejection. A complete reply requires that the terminal disclaimer be accompanied by a reply requesting reconsideration of the prior Office action. Even where the NSDP rejection is provisional the reply must be complete. See MPEP § 804, subsection I.B.1. For a reply to a non-final Office action, see 37 CFR 1.111(a). For a reply to final Office action, see 37 CFR 1.113(c). A request for reconsideration while not provided for in 37 CFR 1.113(c) may be filed after final for consideration. See MPEP §§ 706.07(e) and 714.13. The USPTO Internet website contains terminal disclaimer forms which may be used. Please visit www.uspto.gov/patent/patents-forms. The actual filing date of the application in which the form is filed determines what form (e.g., PTO/SB/25, PTO/SB/26, PTO/AIA /25, or PTO/AIA /26) should be used. A web-based eTerminal Disclaimer may be filled out completely online using web-screens. An eTerminal Disclaimer that meets all requirements is auto-processed and approved immediately upon submission. For more information about eTerminal Disclaimers, refer to www.uspto.gov/patents/apply/applying-online/eterminal-disclaimer. Claims 1-2, 4-6, 10-14 and 17-21 are provisionally rejected on the ground of nonstatutory double patenting as being unpatentable over claims 1-2, 5-7, 12-16 and 21 of U.S. Patent No. 12646717. Although the claims at issue are not identical, they are not patentably distinct from each other because the subject matter of claims 1, 4-6, 10-14 and 17-21 of the present application are fully anticipated by claims 1-2, 5-7, 12-16 and 21 of U.S. Patent No. 12646717. Claim 1 is considered product-by-process claim. Claims 1-2, 5-7, 12-16 and 21 of U.S. Patent No. 12646717 teaches all of the positively recited structure of the claimed product - carbon material. The determination of patentability is based upon the product structure itself. The patentability of a carbon material does not depend on its method/ process of determination. If the product in the product-by-process claim is the same as or obvious from a product of the prior art, the claim is unpatentable even though the prior product was made by a different process. (See MPEP § 2113). Claim 1 as written does not distinguish the carbon material of the instant application from the carbon material of the claims 1-2, 5-7, 12-16 and 21 of U.S. Patent No. 12646717. Expectation E, dispersity D and gross area A are directed to compartment(s) used to determine X1, which are being interpreted as product-by-process limitations and does not distinguish the carbon material of the instant application from the carbon material of the claims 1-2, 5-7, 12-16 and 21 of U.S. Patent No. 12646717. Regarding claims 3 and 16, claims 1-2, 5-7, 12-16 and 21 of U.S. Patent No. 12646717 teach the carbon material as disclosed above. Claims 1-2, 5-7, 12-16 and 21 of U.S. Patent No. 12646717 do not teach wherein the granulated particles satisfy the equation of claims 3 and 16, wherein R is a roundness determined with a flow-based particle image analyzer, and R1 is a roundness determined from a cross-sectional SEM image. However, in the same field of endeavor, Matsumoto teaches a carbon material having a roundness (R), determined by flow-based particle image analysis, of 0.90 (Matsumoto, Title, Table 1, [0057]-[0061], e.g., the average degree of circularity is determined with flow type particle image analyzer; the average degree of circularity is 0.90 (see Ex. 2 and 3 of Table 1)). It would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention to have the carbon material having a roundness (R), determined by flow-based particle image analysis, of 0.90, for the purpose of optimizing interparticle interstices and/or load characteristics (Matsumoto, [0061]). Claims 1-2, 5-7, 12-16 and 21 of U.S. Patent No. 12646717 in view of Matsumoto does not teach wherein the granulated particles satisfy the equation of claims 3 and 16, wherein R is a roundness determined with a flow-based particle image analyzer, and R1 is a roundness determined from a cross-sectional SEM image. However, in the same field of endeavor, Suenaga teaches a carbon material having a roundness R1, determined from a cross-sectional SEM image, of 0.90 or more and 1.00 in a perfect circle (Suenaga, Title, [0019], e.g., "spherical" means that when the particle image of the graphite particles is observed in an SEM image, it has a rounded shape; preferably, the circularity is 0.9 or more (which is being interpreted as roundness R1 determined from a cross-sectional SEM image); by making such a configuration, the negative electrode active material layer formed can be densified; the "circularity" is a circle equivalent diameter that is the diameter of a circle having the same area as the projected area of the graphite particles, or the perimeter as a circle calculated by dividing it by the perimeter measured from the projected image of the graphite particles, and is 1.00 in a perfect circle). It would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention to have the carbon material having a roundness (R1), determined from a cross-sectional SEM image, of 0.90 or more, with 1.00 being a perfect circle, for the purpose of densify (Suenaga, [0019]). Claims 1-2, 5-7, 12-16 and 21 of U.S. Patent No. 12646717 in view of Matsumoto and Suenaga teaches wherein the granulated particles satisfies the equation of claims 3 and 16, wherein R is a roundness determined with a flow-based particle image analyzer (R is 0.90 (Matsumoto, (see Ex. 2 and 3 of Table 1))), and R1 is a roundness determined from a cross-sectional SEM image (R1 is 0.90-1.00 (Suenaga, [0019])). Conclusion 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 HAIXIA ZHANG whose telephone number is (571)272-5697. The examiner can normally be reached Monday and Tuesday 9-5. 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 at (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. /HAIXIA ZHANG/Primary Examiner, Art Unit 1723
Read full office action

Prosecution Timeline

Show 1 earlier event
Feb 27, 2025
Non-Final Rejection mailed — §DP
Jun 26, 2025
Response Filed
Oct 01, 2025
Final Rejection mailed — §DP
Jan 23, 2026
Request for Continued Examination
Jan 28, 2026
Response after Non-Final Action
Mar 25, 2026
Non-Final Rejection mailed — §DP
Jun 25, 2026
Response Filed
Sep 10, 2026
Final Rejection mailed — §DP (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12744289
SECONDARY BATTERY
4y 8m to grant Granted Sep 22, 2026
Patent 12738575
Packaging for Flexible Secondary Battery and Flexible Secondary Battery Comprising the Same
5y 9m to grant Granted Sep 15, 2026
Patent 12731830
BATTERY CELL, BATTERY, AND ELECTRIC APPARATUS
1y 6m to grant Granted Sep 08, 2026
Patent 12668504
POSITIVE ELECTRODE ACTIVE MATERIAL AND PREPARATION METHOD THEREFOR, POSITIVE ELECTRODE SHEET, SECONDARY BATTERY, AND ELECTRICAL DEVICE
10m to grant Granted Jun 30, 2026
Patent 12646717
CARBON MATERIAL, METHOD FOR PRODUCING CARBON MATERIAL, AND NON-AQUEOUS SECONDARY BATTERY USING CARBON MATERIAL
4y 5m to grant Granted Jun 02, 2026
Study what changed to get past this examiner. Based on 5 most recent grants.

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Prosecution Projections

5-6
Expected OA Rounds
63%
Grant Probability
81%
With Interview (+17.8%)
3y 3m (~0m remaining)
Median Time to Grant
High
PTA Risk
Based on 310 resolved cases by this examiner. Grant probability derived from career allowance rate.

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