Prosecution Insights
Last updated: July 17, 2026
Application No. 18/832,682

METHOD FOR PRODUCING CHEMICAL PRODUCT

Non-Final OA §103§112
Filed
Jul 24, 2024
Priority
Jan 27, 2022 — JP 2022-010857 +1 more
Examiner
CAMPANELL, FRANCIS C
Art Unit
Tech Center
Assignee
Bridgestone Corporation
OA Round
1 (Non-Final)
73%
Grant Probability
Favorable
1-2
OA Rounds
10m
Est. Remaining
82%
With Interview

Examiner Intelligence

Grants 73% — above average
73%
Career Allowance Rate
643 granted / 881 resolved
+13.0% vs TC avg
Moderate +9% lift
Without
With
+9.0%
Interview Lift
resolved cases with interview
Typical timeline
2y 9m
Avg Prosecution
27 currently pending
Career history
905
Total Applications
across all art units

Statute-Specific Performance

§101
0.4%
-39.6% vs TC avg
§103
77.6%
+37.6% vs TC avg
§102
16.7%
-23.3% vs TC avg
§112
2.8%
-37.2% vs TC avg
Black line = Tech Center average estimate • Based on career data from 881 resolved cases

Office Action

§103 §112
CTNF 18/832,682 CTNF 83859 Notice of Pre-AIA or AIA Status 07-03-aia AIA 15-10-aia The present application, filed on or after March 16, 2013, is being examined under the first inventor to file provisions of the AIA. Claim Rejections - 35 USC § 112 07-30-02 AIA 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. 07-34-01 Claims 1-11 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 1 required that the raw material oil undergoes steam cracking. P 148-149 of the specification makes clear that the oil steam cracked is the effluent from the hydrogenolysis step. The hydrogenolysis step is done with the raw material oil. As such it can no longer be called the raw material oil after the hydrogenolysis step as it is fundamentally changed, and the wording is confusing. This applies to all dependent claims. Claim 5 states “wherein the pyrolysis oil, a 10%...”. It is assumed for the purpose of this office action the pyrolysis oil in its entirety must have the required distillation temperature. Clarification should be put in the claim to 1. Make the sentence work in English and 2. If the distillation temperature requirements apply to the total pyrolysis oil and not individually the light fraction or the heavy fraction. Claim Rejections - 35 USC § 103 07-20-aia AIA 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. 07-23-aia AIA The factual inquiries for establishing a background for determining obviousness under 35 U.S.C. 103 are summarized as follows: 1. Determining the scope and contents of the prior art. 2. Ascertaining the differences between the prior art and the claims at issue. 3. Resolving the level of ordinary skill in the pertinent art. 4. Considering objective evidence present in the application indicating obviousness or nonobviousness. 07-21-aia AIA Claim (s) 1-4, 7-8 and 10-11 is/are rejected under 35 U.S.C. 103 as being unpatentable over JP 2019533041 A (hereafter ‘041). A translated copy of this will be provided with the office action . ‘041 teaches a method of making chemical products. The process starts with a feedstock that may be entirely tires, see paragraph 4 down after description of Fig. 1 in description of embodiments section. Other plastic waste including rubbers and plastics may also be used. The feed undergoes pyrolysis to obtain a gas and liquid phase. See Fig. 1 description in embodiments section. This is separated. This is done at 570 C, see example 5. The pyrolysis process can be temperature modified to produce differing amount the desired products in terms of gas and oil. See pyrolysis section under unit 10 description which is under the section which describes the feed. Thus, the amount of the pyrolysis oil may be 45% or more and 80% or less. The amount of gas may be 25% or less. In a case where the claimed ranges overlap or lie inside ranges disclosed by the prior art a prima facie case of obviousness exists. See In re Wertheim , 541 F.2d 257, 191 USPQ 90 (CCPA 1946), and MPEP 2144.05. The oil portion undergo hydrogenolysis This is referred to as hydrodealkylation. See hydrodeaklyation section under the scrubber section in the embodiments section. This uses a nickel catalyst. See the catalyst paragraphs in the further disclosure section. It is the 7 th paragraph down. This is separated by boiling point into desired cuts. This constitutes the low and high boiling point fraction. The effluent from this sorted by desired boiling point. Any portion of the boiling point may then undergo steam cracking. See fig .1 and the three paragraphs above the steam cracker 50 section in the in description of embodiments section. Allowable Subject Matter There is no allowable subject matter due to 112 rejections. The following claims are not rejected over prior art. Regarding claims 5, the distillation temperature of the pyrolysis oil is not taught or suggested. Regarding claim 6 the amount of the high boiling point raw material is not taught or suggested. Regarding claim 9 the nitrogen content of the light fraction is not taught or suggested. Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to FRANK C CAMPANELL whose telephone number is (571)270-3165. The examiner can normally be reached Monday-Friday 9:00-5:00. 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, Prem Singh can be reached at 571-272-6381. 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. /FRANCIS C CAMPANELL/Examiner, Art Unit 1771 /PREM C SINGH/Supervisory Patent Examiner, Art Unit 1771 Application/Control Number: 18/832,682 Page 2 Art Unit: 1771 Application/Control Number: 18/832,682 Page 3 Art Unit: 1771 Application/Control Number: 18/832,682 Page 4 Art Unit: 1771 Application/Control Number: 18/832,682 Page 5 Art Unit: 1771
Read full office action

Prosecution Timeline

Jul 24, 2024
Application Filed
Jun 17, 2026
Non-Final Rejection mailed — §103, §112 (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
73%
Grant Probability
82%
With Interview (+9.0%)
2y 9m (~10m remaining)
Median Time to Grant
Low
PTA Risk
Based on 881 resolved cases by this examiner. Grant probability derived from career allowance rate.

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