Prosecution Insights
Last updated: October 27, 2026
Application No. 17/996,668

PARTIAL OXIDATION GASIFICATION OF WET WASTE PLASTIC

Non-Final OA §112
Filed
Oct 20, 2022
Priority
Apr 13, 2020 — provisional 63/008,923 +1 more
Examiner
CORALLO, CATRIONA MARY
Art Unit
1732
Tech Center
1700 — Chemical & Materials Engineering
Assignee
Eastman Chemical Company
OA Round
3 (Non-Final)
67%
Grant Probability
Favorable
3-4
OA Rounds
0m
Est. Remaining
80%
With Interview

Examiner Intelligence

Grants 67% — above average
67%
Career Allowance Rate
69 granted / 103 resolved
+2.0% vs TC avg
Moderate +13% lift
Without
With
+12.9%
Interview Lift
resolved cases with interview
Typical timeline
3y 3m
Avg Prosecution
25 currently pending
Career history
130
Total Applications
across all art units

Statute-Specific Performance

§103
59.6%
+19.6% vs TC avg
§102
9.2%
-30.8% vs TC avg
§112
25.1%
-14.9% vs TC avg
Black line = Tech Center average estimate • Based on career data from 103 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 . Continued Examination Under 37 CFR 1.114 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and the fee set forth in 37 CFR 1.17(e) has been timely paid, the finality of the previous Office action has been withdrawn pursuant to 37 CFR 1.114.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 06/10/2026 has been entered. Claim Rejections - 35 USC § 112 The following is a quotation of the first paragraph of 35 U.S.C. 112(a): (a) IN GENERAL.—The specification shall contain a written description of the invention, and of the manner and process of making and using it, in such full, clear, concise, and exact terms as to enable any person skilled in the art to which it pertains, or with which it is most nearly connected, to make and use the same, and shall set forth the best mode contemplated by the inventor or joint inventor of carrying out the invention. The following is a quotation of the first paragraph of pre-AIA 35 U.S.C. 112: The specification shall contain a written description of the invention, and of the manner and process of making and using it, in such full, clear, concise, and exact terms as to enable any person skilled in the art to which it pertains, or with which it is most nearly connected, to make and use the same, and shall set forth the best mode contemplated by the inventor of carrying out his invention. Claims 1-2, 6, and 11 are rejected under 35 U.S.C. 112(a) or 35 U.S.C. 112 (pre-AIA ), first paragraph, as failing to comply with the written description requirement. The claim(s) contains subject matter which was not described in the specification in such a way as to reasonably convey to one skilled in the relevant art that the inventor or a joint inventor, or for applications subject to pre-AIA 35 U.S.C. 112, the inventor(s), at the time the application was filed, had possession of the claimed invention. Claim 1 recites, “size-reducing said separated wet waste plastic and producing a size-reduced wet waste plastic”. However, there is no support for a wet waste plastic being size-reduced, rather there is only support for “the wet waste plastic fed to the POX gasifier may comprise a plastic-containing product, coproduct, by-product, and/or waste stream from one or more size reduction, washing, and/or density separation process within the preprocessing facility” (Specification, [0164]; [0169]) (emphasis added). Therefore, the wet waste plastic may be formed after a size reduction but is not taught to be the waste plastic fed to the size reduction. Regarding dependent claims 2, 6, and 11, these claims do not remedy the deficiencies of parent claim 1 noted above, and are rejected for the same rationale. Response to Arguments In response to applicant’s amendments, a new set of 35 U.S.C. 112(a) new matter rejections are set forth above. Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to Catriona Corallo whose telephone number is (571)272-8957. The examiner can normally be reached Monday-Friday, 8am-5pm. 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, Ching-Yiu Fung can be reached at (571)270-5713. 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. /C.M.C./Examiner, Art Unit 1732 /CORIS FUNG/Supervisory Patent Examiner, Art Unit 1732
Read full office action

Prosecution Timeline

Oct 20, 2022
Application Filed
Oct 20, 2022
Response after Non-Final Action
Nov 03, 2025
Non-Final Rejection mailed — §112
Feb 02, 2026
Response Filed
Mar 10, 2026
Final Rejection mailed — §112
Jun 10, 2026
Request for Continued Examination
Jun 12, 2026
Response after Non-Final Action
Sep 30, 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
67%
Grant Probability
80%
With Interview (+12.9%)
3y 3m (~0m remaining)
Median Time to Grant
High
PTA Risk
Based on 103 resolved cases by this examiner. Grant probability derived from career allowance rate.

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