Prosecution Insights
Last updated: July 17, 2026
Application No. 18/114,488

RECYCLED GRAPHITE FOR LI-ION BATTERIES

Non-Final OA §112
Filed
Feb 27, 2023
Examiner
RUMP, RICHARD M
Art Unit
1759
Tech Center
1700 — Chemical & Materials Engineering
Assignee
Mexichem Fluor Inc.
OA Round
3 (Non-Final)
74%
Grant Probability
Favorable
3-4
OA Rounds
0m
Est. Remaining
95%
With Interview

Examiner Intelligence

Grants 74% — above average
74%
Career Allowance Rate
800 granted / 1074 resolved
+9.5% vs TC avg
Strong +20% interview lift
Without
With
+20.1%
Interview Lift
resolved cases with interview
Typical timeline
2y 6m
Avg Prosecution
34 currently pending
Career history
1109
Total Applications
across all art units

Statute-Specific Performance

§101
0.6%
-39.4% vs TC avg
§103
78.3%
+38.3% vs TC avg
§102
12.0%
-28.0% vs TC avg
§112
5.0%
-35.0% vs TC avg
Black line = Tech Center average estimate • Based on career data from 1074 resolved cases

Office Action

§112
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 . Status of Application Claims 2-20 are pending and presented for examination. A request for continued examination under 37 CFR 1.114, including the fee set forth in 37 CFR 1.17(e), was filed in this application after final rejection. Since this application is eligible for continued examination under 37 CFR 1.114, and the fee set forth in 37 CFR 1.17(e) has been timely paid, the finality of the previous Office action has been withdrawn pursuant to 37 CFR 1.114. Applicant's submission filed on 14 April 2026 has been entered. Response to Arguments Applicant’s remarks dated 14 April 2026 (hereinafter, “Remarks at __”) are acknowledged and entered. The rejection of claims 1-14 and 16-20 under 35 U.S.C. 103 over Ma in view of Turner and Lu with Li as an evidentiary reference is WITHDRAWN as claims 2-14 and 16-19 now depend upon allowed claim 15 and claim 20 recites the allowable subject matter of sintering at 180-220 C and alkaline solution washing with a solution of <=0.1 M alkaline hydroxide to a pH of 6-10. The rejection of claims 1-14 and 16-20 under 35 U.S.C. 103 over Li in view of Turner, Lu and Gao is WITHDRAWN as claims 2-14 and 16-19 now depend upon allowed claim 15 and claim 20 recites the allowable subject matter of sintering at 180-220 C and alkaline solution washing with a solution of <=0.1 M alkaline hydroxide to a pH of 6-10. 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. Claims 13 and 14 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. It is unclear if in claim 13 that this is a separate washing step, then it should be claimed as such. It is being construed as being the same washing step as at the end of claim 15 (This is in line with the instant specification at [0016]. This is which is why the following rejection under 35 U.S.C. 112(d) is made over claim 14, claim 14 is also rejected under 35 U.S.C. 112(b) as it depends from claim 13). The following is a quotation of 35 U.S.C. 112(d): (d) REFERENCE IN DEPENDENT FORMS.—Subject to subsection (e), a claim in dependent form shall contain a reference to a claim previously set forth and then specify a further limitation of the subject matter claimed. A claim in dependent form shall be construed to incorporate by reference all the limitations of the claim to which it refers. The following is a quotation of pre-AIA 35 U.S.C. 112, fourth paragraph: Subject to the following paragraph [i.e., the fifth paragraph of pre-AIA 35 U.S.C. 112], a claim in dependent form shall contain a reference to a claim previously set forth and then specify a further limitation of the subject matter claimed. A claim in dependent form shall be construed to incorporate by reference all the limitations of the claim to which it refers. Claim 14 is rejected under 35 U.S.C. 112(d) or pre-AIA 35 U.S.C. 112, 4th paragraph, as being of improper dependent form for failing to further limit the subject matter of the claim upon which it depends, or for failing to include all the limitations of the claim upon which it depends. Claim 15 recites that the aqueous wash solution is an alkaline hydroxide, but claim 14 is trying to limit such to just water which it cannot do as water is not an aqueous alkaline solution. Applicant may cancel the claim(s), amend the claim(s) to place the claim(s) in proper dependent form, rewrite the claim(s) in independent form, or present a sufficient showing that the dependent claim(s) complies with the statutory requirements. Allowable Subject Matter Claims 2-13 and 15-20 are allowed as they now depend on allowed claim 15 which is allowable for reasons already of record. Claim 20 recites allowable subject matter of sintering at 150-220 C which ishten washed with an aqueous wash solution toa pH of 6-10 wherein the wash solution is <=0.1 M aqueous alkaline solution. Conclusion Claims 13 and 14 are rejected. Claims 2-12 and 15-20 are allowed. Any inquiry concerning this communication or earlier communications from the examiner should be directed to RICHARD M RUMP whose telephone number is (571)270-5848. The examiner can normally be reached Monday-Thursday 06:45 AM to 04:45 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, Curtis Mayes can be reached at 571-272-1234. 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. RICHARD M. RUMP Primary Examiner Art Unit 1759 /RICHARD M RUMP/Primary Examiner, Art Unit 1759
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Prosecution Timeline

Feb 27, 2023
Application Filed
Aug 14, 2025
Non-Final Rejection mailed — §112
Nov 13, 2025
Response Filed
Jan 14, 2026
Final Rejection mailed — §112
Apr 14, 2026
Request for Continued Examination
Apr 20, 2026
Response after Non-Final Action
May 07, 2026
Non-Final Rejection mailed — §112 (current)

Precedent Cases

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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
95%
With Interview (+20.1%)
2y 6m (~0m remaining)
Median Time to Grant
High
PTA Risk
Based on 1074 resolved cases by this examiner. Grant probability derived from career allowance rate.

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