Prosecution Insights
Last updated: July 17, 2026
Application No. 18/262,512

CARBON BLACK, CARBON BLACK PRODUCTION METHOD, COMPOSITION FOR ELECTRODE, ELECTRODE, AND SECONDARY BATTERY

Non-Final OA §102§103
Filed
Jul 21, 2023
Priority
Feb 05, 2021 — JP 2021-017666 +1 more
Examiner
FIGUEROA, JOHN J
Art Unit
1763
Tech Center
1700 — Chemical & Materials Engineering
Assignee
Denka Company Limited
OA Round
1 (Non-Final)
83%
Grant Probability
Favorable
1-2
OA Rounds
0m
Est. Remaining
92%
With Interview

Examiner Intelligence

Grants 83% — above average
83%
Career Allowance Rate
919 granted / 1104 resolved
+18.2% vs TC avg
Moderate +9% lift
Without
With
+8.6%
Interview Lift
resolved cases with interview
Typical timeline
2y 10m
Avg Prosecution
26 currently pending
Career history
1124
Total Applications
across all art units

Statute-Specific Performance

§101
0.7%
-39.3% vs TC avg
§103
58.7%
+18.7% vs TC avg
§102
27.4%
-12.6% vs TC avg
§112
5.8%
-34.2% vs TC avg
Black line = Tech Center average estimate • Based on career data from 1104 resolved cases

Office Action

§102 §103
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 . Election/Restriction Applicant’s election, without traverse, of Group I (claims 1-7 and 13) in the reply filed on February 25, 2026, to the restriction requirement dated January 5, 2026, is hereby acknowledged. Accordingly, claims 1-7 and 13 have been examined in the instant Office action, whereas claims 8-10 have been withdrawn from consideration as drawn to a nonelected invention but remain pending with the present application. Claim Rejections - 35 USC § 103 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. The following is a quotation of 35 U.S.C. 103 which forms the basis for all obviousness rejections set forth in this Office action: A patent for a claimed invention may not be obtained, notwithstanding that the claimed invention is not identically disclosed as set forth in section 102, if the differences between the claimed invention and the prior art are such that the claimed invention as a whole would have been obvious before the effective filing date of the claimed invention to a person having ordinary skill in the art to which the claimed invention pertains. Patentability shall not be negated by the manner in which the invention was made. Claims 1-7 and 13 are rejected under 35 U.S.C. §102(a)(1) as unpatentable over Honma (US 2016/0190594 A1 to Honma, published June 30, 2016) and Speck (USPN 3,494,740 A to Speck, issued July 1, 1968). Honma discloses a carbon black composition, and an electricity storage device containing thereof, wherein the carbon black has a specified peak intensity of a main peak derived from an iron carbide and a peak intensity of a main peak derived from FeO(OH) in a radial distribution function, wherein the production method for the carbon black includes subjecting raw material of carbon black to a heat treatment at a temperature of 900°C to 1500°C for a specified period of time under a specified atmosphere, wherein the carbon black has excellent dispersibility, and wherein elution issues regarding the metal component is reduced during production (abstract; [0001]; [0016] to [0018]; [0024] to [0027]). The carbon black has a Di-Butyl Phthalate (DBP) oil absorption in an amount of 100 to 600 cm3 /100g ([0018] to [0020]; [0047]; [0048] and Table 1of Honma. The specific surface area ranges from 50 to 1600 m2/g ([0049];[0050]; Table 1 of Honma). Honma further discloses that its carbon black can also comprise acetylene black in the raw material ([0054]), and further that it can be used as a secondary battery ([0004]; [0070]; [0071]). Honma does not disclose the metal component containing cobalt. However, Speck teaches iron, nickel, vanadium and cobalt as metal additives metals used in carbon black production that are included in an amount of 1 to 80 ppm of the reactants, which serve to prevent/remove deposits of carbonaceous and coke materials and, further, to decrease the structure of the carbon black produced in the furnace and thus provide an enhanced carbon black material having a reduced structure, (col. 1, lines 13-24; col. 2, line 64 to col. 3, line 53; col. 4, lines 29-51 of Speck). Therefore, it would been obvious at the time of filing to include a content of cobalt in Honma’s raw carbon black material to provide a resultant carbon black having an enhanced structure for future use, in accordance with the teachings in Speck Although Honma may not expressly disclose all the concentration/ratios disclosed in the dependent claims 4-6, however, it would have been within the purview of one skilled in the art at the time of the filing of the present application to select optimal concentration/ratios of the various components used in production process to provide an enhanced carbon black product having a reduced structure, in accordance with the teachings in Honma and Speck. Therefore, the resultant concentrations/ratios recited in the present claims can be arrived by routine optimization of these component variable (See MPEP §2144.05 II A. Thus, the instant claims are unpatentable over Honma and Speck. Conclusion The prior art made of record and not relied upon is considered pertinent to applicant's disclosure. Any inquiry concerning this communication or earlier communications from the examiner should be directed to JOHN J FIGUEROA whose telephone number is (571)272-8916. The examiner can normally be reached on 8:30 am -6:00 pm. If attempts to reach the examiner by telephone are unsuccessful, the examiner’s supervisor, JOSEPH DEL SOLE can be reached on 571-272-1130. The fax phone number for the organization where this application or proceeding is assigned is 571-273-8300. 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. Information regarding the status of an application may be obtained from the Patent Application Information Retrieval (PAIR) system. Status information for published applications may be obtained from either Private PAIR or Public PAIR. Status information for unpublished applications is available through Private PAIR only. For more information about the PAIR system, see http://pair-direct.uspto.gov. Should you have questions on access to the Private PAIR system, contact the Electronic Business Center (EBC) at 866-217-9197 (toll-free). If you would like assistance from a USPTO Customer Service Representative or access to the automated information system, call 800-786-9199 (IN USA OR CANADA) or 571-272-1000. /JOHN J FIGUEROA/Primary Examiner, Art Unit 1763 March 31, 2026
Read full office action

Prosecution Timeline

Jul 21, 2023
Application Filed
Apr 15, 2026
Non-Final Rejection mailed — §102, §103 (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
83%
Grant Probability
92%
With Interview (+8.6%)
2y 10m (~0m remaining)
Median Time to Grant
Low
PTA Risk
Based on 1104 resolved cases by this examiner. Grant probability derived from career allowance rate.

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