Prosecution Insights
Last updated: April 19, 2026
Application No. 18/032,430

A METHOD FOR MANUFACTURING A RECYCLABLE ARTICLE FROM MUNICIPAL SOLID WASTE

Non-Final OA §112
Filed
Apr 18, 2023
Examiner
LEE, EDMUND H
Art Unit
1744
Tech Center
1700 — Chemical & Materials Engineering
Assignee
Trashcon Labs Private Limited
OA Round
1 (Non-Final)
69%
Grant Probability
Favorable
1-2
OA Rounds
3y 2m
To Grant
87%
With Interview

Examiner Intelligence

Grants 69% — above average
69%
Career Allow Rate
790 granted / 1143 resolved
+4.1% vs TC avg
Strong +18% interview lift
Without
With
+18.2%
Interview Lift
resolved cases with interview
Typical timeline
3y 2m
Avg Prosecution
41 currently pending
Career history
1184
Total Applications
across all art units

Statute-Specific Performance

§101
0.1%
-39.9% vs TC avg
§103
73.4%
+33.4% vs TC avg
§102
6.2%
-33.8% vs TC avg
§112
13.7%
-26.3% vs TC avg
Black line = Tech Center average estimate • Based on career data from 1143 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 . Claims 13-16 are withdrawn from further consideration pursuant to 37 CFR 1.142(b) as being drawn to a nonelected invention, there being no allowable generic or linking claim. Election was made without traverse in the reply filed on 11/17/25. Applicant’s election without traverse of claims 1-12 in the reply filed on 11/17/25 is acknowledged. Claims 1-12 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. The phrase “processed mixture” (cl 1:5) is indefinite because it is inaccurate. It is the biodegradable waste and non-biodegradable waste that are processed and not the mixture. The mixture is the result of processing the wastes. Thus, it appears the phrase should be changed to –the mixture--. Subsequently, all occurrences of the phrase “the processed mixture” in claims 1, 2, and 7-8 should be changed to –the mixture--. The phrase “wherein the processed mixture is obtained by a method” (cl 2:1-2) is indefinite because it is unclear whether the method to obtain the processed mixture is related to the processing step of claim 1 that results in the formation of the mixture. If the method of claim 2 is meant to further define the processing step of claim 1, it should be clearly recited as such. The phrase “the grinded waste” (cl 2:8) is indefinite because it is unclear which grinded waste is meant, grinded biodegradable waste and/or grinded non-biodegradable waste. If both grinded wastes were meant, it should be clearly and positively recited as such. It should be known the instant specification recites extruding, at the same time, both grinded biodegradable waste and grinded non-biodegradable waste. The phrase “the extruded waste” (cl 2:10) lacks antecedent basis in the claim. The phrase “the grinded waste” (cl 3:2) is indefinite because it is unclear which grinded waste is meant, grinded biodegradable waste and/or grinded non-biodegradable waste. If both grinded wastes were meant, it should be clearly and positively recited as such. It should be known the instant specification recites extruding, at the same time, both the grinded biodegradable waste and the grinded non-biodegradable waste. The phrase “the waste” (cl 9:1) is indefinite because it is unclear which waste is meant, the biodegradable waste and/or the non-biodegradable waste. If both wastes were meant, it should be clearly and positively recited as such. It should be known the instant specification recites compression molding both the biodegradable waste and the non-biodegradable waste. The phrase “the grinded waste” (cl 3:2) is indefinite because it is unclear which grinded waste is meant, grinded biodegradable waste and/or grinded non-biodegradable waste. If both grinded wastes were meant, it should be clearly and positively recited as such. It should be known the instant specification recites extruding, at the same time, both the grinded biodegradable waste and the grinded non-biodegradable waste. Corrections are required. Claims 1-12 would be allowable if rewritten or amended to overcome the rejection(s) under 35 U.S.C. 112(b) or 35 U.S.C. 112 (pre-AIA ), 2nd paragraph, set forth in this Office action. The following is an examiner’s statement of reasons for allowance: the prior art of record including the closest prior art WO2014/033502 neither teaches nor renders obvious every claimed limitation including manufacturing a recyclable article from municipal solid waste without the addition of binders; melting the mixture of processed biodegradable waste and non-biodegradable waste in a melter at a pre-determined temperature and pre-determined pressure so that the non-biodegradable waste circumscribes and forms a bond with the biodegradable waste during melting; and compressing the melted mixture in a compression molding device at a pressure ranging from 0.1Kg/cm2 to 3.0Kg/cm2. Any comments considered necessary by applicant must be submitted no later than the payment of the issue fee and, to avoid processing delays, should preferably accompany the issue fee. Such submissions should be clearly labeled “Comments on Statement of Reasons for Allowance.” The prior art made of record and not relied upon is considered pertinent to applicant's disclosure. The following references teach encapsulating waste with a polymer: WO2014/033502 (uses binder and explicitly does not use heat and compacting/pressing); USPN 4234632 (adds polymer to encapsulate); USPN 9978470 (adds polymer to encapsulate; radioactive waste); USPN 5649323 (adds polymer to encapsulate; radioactive waste); and USPN 5962630 (adds polymer to encapsulate; radioactive waste); and 5190226 . Any inquiry concerning this communication or earlier communications from the examiner should be directed to EDMUND H LEE whose telephone number is (571)272-1204. The examiner can normally be reached M-Th 9AM-4PM. 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, Xiao (Sam) Zhao can be reached at 571-270-5343. 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. EHL /EDMUND H LEE/Primary Examiner, Art Unit 1744
Read full office action

Prosecution Timeline

Apr 18, 2023
Application Filed
Feb 10, 2026
Non-Final Rejection — §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

1-2
Expected OA Rounds
69%
Grant Probability
87%
With Interview (+18.2%)
3y 2m
Median Time to Grant
Low
PTA Risk
Based on 1143 resolved cases by this examiner. Grant probability derived from career allow rate.

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