Prosecution Insights
Last updated: July 17, 2026
Application No. 18/567,251

GRAPHITE NEGATIVE ELECTRODE MATERIAL, PREPARATION METHOD THEREFOR AND USE THEREOF

Non-Final OA §102§112
Filed
Dec 05, 2023
Priority
Jun 10, 2021 — CN 202110646868.9 +1 more
Examiner
MCCRACKEN, DANIEL
Art Unit
1736
Tech Center
1700 — Chemical & Materials Engineering
Assignee
National Institute Of Clean-And-Low-Carbon Energy
OA Round
1 (Non-Final)
72%
Grant Probability
Favorable
1-2
OA Rounds
3m
Est. Remaining
88%
With Interview

Examiner Intelligence

Grants 72% — above average
72%
Career Allowance Rate
853 granted / 1188 resolved
+6.8% vs TC avg
Strong +16% interview lift
Without
With
+16.4%
Interview Lift
resolved cases with interview
Typical timeline
2y 11m
Avg Prosecution
39 currently pending
Career history
1220
Total Applications
across all art units

Statute-Specific Performance

§101
1.0%
-39.0% vs TC avg
§103
79.0%
+39.0% vs TC avg
§102
10.1%
-29.9% vs TC avg
§112
7.3%
-32.7% vs TC avg
Black line = Tech Center average estimate • Based on career data from 1188 resolved cases

Office Action

§102 §112
DETAILED ACTION Citation to the Specification will be in the following format: (S. # : ¶) where # denotes the page number and ¶ denotes the paragraph number of the pregrant publication corresponding to this application, US 2024/0282965. Citation to patent literature will be in the form (Inventor # : LL) where # is the column number and LL is the line number. Citation to the pre-grant publication literature will be in the following format (Inventor # : ¶) where # denotes the page number and ¶ denotes the paragraph number. 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 . Status of Application; Restriction Applicant’s election without traverse of Group I (Claims 1-7) in the reply filed on 6/18/2026 is acknowledged. The Remarks do not account for Group VI, but clearly elect Group I (Claims 1-7). Claim(s) 1-18 is/are pending. Claims 8-18 are withdrawn from further consideration pursuant to 37 CFR 1.142(b) as being drawn to a nonelected methods, materials, etc., there being no allowable generic or linking claim. Election was made without traverse in the reply filed on 6/18/2026. Priority Receipt is acknowledged of certified copies of papers required by 37 CFR 1.55. Information Disclosure Statement The information disclosure statements (IDS) submitted on: 6/23/2025 1/9/2025 12/5/2023 are in compliance with the provisions of 37 CFR 1.97-1.98, except as noted below: Non-Patent Literature Cite No. 1 on the 6/23/2025 IDS was filed without a translation. The reference is crossed off and is not considered. 37 CFR 1.98(a)(3). Accordingly, the information disclosure statement is being considered by the examiner. 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. The following is a quotation of 35 U.S.C. 112 (pre-AIA ), second paragraph: The specification shall conclude with one or more claims particularly pointing out and distinctly claiming the subject matter which the applicant regards as his invention. I. Claims 5-7 – or as stated below – is/are rejected under 35 U.S.C. 112(b) or 35 U.S.C. 112 (pre-AIA ), second paragraph, 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. Claim 5 recites “0.3350 nm ≤ d002 ≤ 0.3380 nm formula (IV); and preferably, 0.3360 nm ≤ d002 ≤ 0.3370 nm.” Broad and narrow ranges in the same claim are indefinite. MPEP 2173.05(c). Claim 6 recites “I1 PNG media_image1.png 87 3 media_image1.png Greyscale 10/I004 is greater than or equal to 0.30 formula (V); and preferably, 0.35 <I110/I004 0.85.” Broad and narrow ranges in the same claim are indefinite. MPEP 2173.05(c). Claim 7 recites “an ash content of the graphite negative electrode material is less than or equal to 1000 ppm, and preferably, less than or equal to 500 ppm.” Broad and narrow ranges in the same claim are indefinite. MPEP 2173.05(c). 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)(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. I. Claim(s) 1-7 – or as stated below - is/are rejected under 35 U.S.C. 102(a)(1) as being anticipated by Wang, et al., Catalytic Graphitization of Anthracite as an Anode for Lithium-Ion Batteries, Energy Fuels 2020; 34: 8911-8918 (hereinafter “Wang at __”). With respect to Claim 1, this claim requires “[a] graphite negative electrode material.” Graphite is taught. (Sotowa 2: [0022]; passim). The “negative electrode material” is interpreted as an intended use, and is not accorded patentable weight. MPEP 2111.02. If the Applicant disagrees, please explain what this language requires beyond graphite. Alternatively or additionally, note anodes are taught. (Wang “Title,” passim). Claim 1 further requires “wherein a crystal size Lc in a c-axis direction and a crystal size La in an a-axis direction, which are obtained by XRD, of the graphite negative electrode material, satisfy the following conditions: 30 nm ≤ Lc ≤ 70 nm formula (I); and 50 nm ≤ La ≤ 120 nm formula (II).” An Lc of 45.1 nm is taught. (Wang at 8913 Table 3, sample TXG/Ce). An La of 81.5 nm is taught. Id. Claim 1 further requires “a graphitization degree of the graphite negative electrode material satisfies the following condition: 85 ≤ graphitization degree ≤ 93 formula (III).” A graphitization degree (G) of 89.53 is taught. Id. As to Claim 2, an Lc of 45.1 nm is taught. Id. As to Claim 3, an La of 81.5 nm is taught. Id. As to Claim 4, a graphitization degree (G) of 89.53 is taught. Id. As to Claim 5, notwithstanding the issues above, a d002 value of 0.3363 is taught. Id. As to Claim 6, notwithstanding the issues above, the values appear taught. (Wang at 8913, Fig. 1). As to Claim 7, Wang teaches “[t]he ash in anthracite was removed,” which is interpreted as reading on the claimed range. (Wang at 8912, col. 1). II. Claim(s) 1, 2 and 5 – or as stated below - is/are rejected under 35 U.S.C. 102(a)(1) as being anticipated by JPH07296814 to Sonobe, et al. (cited by Applicants; B82Y 99/00; 11-10-1995). Citation is to the machine translation accompanying the office action. With respect to Claim 1, this claim requires “[a] graphite negative electrode material.” A graphite negative electrode material is taught. (Sonobe at 3: “A secondary battery including a negative electrode made of such a graphite material…,” passim). Claim 1 further requires “wherein a crystal size Lc in a c-axis direction and a crystal size La in an a-axis direction, which are obtained by XRD, of the graphite negative electrode material, satisfy the following conditions: 30 nm ≤ Lc ≤ 70 nm formula (I); and 50 nm ≤ La ≤ 120 nm formula (II).” Sonobe teaches Lc values of 15-50 nm and La values of 5-50 nm. (Sonobe at 3: “The crystallite size Lc (002) is more than 15 nm and not more than 50 nm, and the crystallite size La (110) in the a-axis direction is 5 to 50 nm.”). Claim 1 further requires “a graphitization degree of the graphite negative electrode material satisfies the following condition: 85 ≤ graphitization degree ≤ 93 formula (III).” The graphitization degree (G) is calculated by the formula in the Specification, where d002 is a variable. (S. 2: [0027]). Sonobe teaches d002 values between 0.336-0.345 nm. (Sonobe 3: “Preferably, d002 is 0.336 to 0.345 nm, Lc (002) is more than 15 nm to 40 nm or less, La (110) is 10 to 50 nm, more preferably d002 is 0.337 to 0.342 nm, and Lc (002) is 20-40 nm and La (110) is 15-50 nm.”). Substituting 0.336 into the equation in the Specification gives a graphitization degree of 93. As to Claim 2, the Lc values are taught. (Sonobe 3: “Preferably, d002 is 0.336 to 0.345 nm, Lc (002) is more than 15 nm to 40 nm or less, La (110) is 10 to 50 nm, more preferably d002 is 0.337 to 0.342 nm, and Lc (002) is 20-40 nm and La (110) is 15-50 nm.”). As to Claim 5, notwithstanding the ambiguities noted above, the values are taught. (Sonobe 3: “Preferably, d002 is 0.336 to 0.345 nm, Lc (002) is more than 15 nm to 40 nm or less, La (110) is 10 to 50 nm, more preferably d002 is 0.337 to 0.342 nm, and Lc (002) is 20-40 nm and La (110) is 15-50 nm.”). Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to DANIEL C. MCCRACKEN whose telephone number is (571) 272-6537. The examiner can normally be reached on Monday-Friday (9-6). 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, Anthony J. Zimmer can be reached on 571-270-3591. The fax phone number for the organization where this application or proceeding is assigned is 571-273-8300. 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 https://ppair-my.uspto.gov/pair/PrivatePair. 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. /DANIEL C. MCCRACKEN/Primary Examiner, Art Unit 1736
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Prosecution Timeline

Dec 05, 2023
Application Filed
Jun 29, 2026
Non-Final Rejection mailed — §102, §112 (current)

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Prosecution Projections

1-2
Expected OA Rounds
72%
Grant Probability
88%
With Interview (+16.4%)
2y 11m (~3m remaining)
Median Time to Grant
Low
PTA Risk
Based on 1188 resolved cases by this examiner. Grant probability derived from career allowance rate.

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