Prosecution Insights
Last updated: April 19, 2026
Application No. 18/282,472

METHOD FOR THE DETERMINATION OF RECYCLED POLYETHYLENE TEREPHTHALATE

Non-Final OA §101§112
Filed
Sep 15, 2023
Examiner
TURK, NEIL N
Art Unit
1798
Tech Center
1700 — Chemical & Materials Engineering
Assignee
Worms Safety Europe
OA Round
1 (Non-Final)
51%
Grant Probability
Moderate
1-2
OA Rounds
3y 11m
To Grant
96%
With Interview

Examiner Intelligence

Grants 51% of resolved cases
51%
Career Allow Rate
381 granted / 745 resolved
-13.9% vs TC avg
Strong +45% interview lift
Without
With
+44.9%
Interview Lift
resolved cases with interview
Typical timeline
3y 11m
Avg Prosecution
50 currently pending
Career history
795
Total Applications
across all art units

Statute-Specific Performance

§101
3.1%
-36.9% vs TC avg
§103
35.3%
-4.7% vs TC avg
§102
21.3%
-18.7% vs TC avg
§112
38.2%
-1.8% vs TC avg
Black line = Tech Center average estimate • Based on career data from 745 resolved cases

Office Action

§101 §112
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 . Claim Rejections - 35 USC § 101 35 U.S.C. 101 reads as follows: Whoever invents or discovers any new and useful process, machine, manufacture, or composition of matter, or any new and useful improvement thereof, may obtain a patent therefor, subject to the conditions and requirements of this title. Claims 1-18 are rejected under 35 U.S.C. 101 because the claimed invention, individually and as an ordered combination, is directed to mathematical concepts without significantly more. The claim(s) recite(s) mathematical concepts (steps a, b, e) to determine a percentage of r-PET within a given material M (Step 2A, Prong 1). This judicial exception is not integrated into a practical application because there is nothing additional beyond the steps that integrates the abstract idea as in informing particular application by way of the calculated percentage of r-PET found for a given material M (Step 2A, Prong 2). The claim(s) does/do not include additional elements that are sufficient to amount to significantly more than the judicial exception because step c is drawn to insignificant extra-solution activity wherein providing a material for analysis is a ubiquitous step that would always be required and is not particular to the present abstract idea at-hand. Further, step d is drawn to a data gathering step that is accomplished by way of well-known analytical chemistry techniques (*see below exemplary prior art to the well-understood, routine, and conventional analytical chemistry techniques recited herein) for substance identification/molecular characterization and quantitation (Step 2B). The dependents claims do not provide particular integration or significantly more beyond the idea of assessing a percentage of r-PET in a given material by mathematical calculation. The dependent claims are drawn to definition of the compositional weights to the at least one PET of the reference material, solubility of the material M, as well as providing choosing of ones of those the analytical chemistry techniques (NMR, 1H-NMR [proton NMR]) , data gathering therewith the techniques (‘acquiring spectrum’) and providing further, additional mathematical concepts (i.e. further abstract ideas) in the various ‘calculations’ and ‘determinations’ of the molar ratio(s), and molar percentage(s) provided therein. This does not provide particular integration or significantly more than the abstract idea(s) at-hand. *See, for example: US 2017/0003264, US 2015/0260695, US 2012/0262178, US 2011/0068262, US 2011/0001477, US 2008/0188003, US 2007/0055456, US 2007/0055456, US 2004/0071860, US 2002/0173920, USPN 5,538,643. 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 2-4 and 6-18 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. Throughout the above-cited claims, the language of “preferably,” “more preferably,” “even more preferably,” and “in particular” (with respect to ‘a peak’ as in cls. 12-18) present indefinite metes and bounds to the claims. It appears Applicant may desire additional dependent claims that provide further delineations from an initial, broader point. A broad range or limitation together with a narrow range or limitation that falls within the broad range or limitation (in the same claim) may be considered indefinite if the resulting claim does not clearly set forth the metes and bounds of the patent protection desired. See MPEP § 2173.05(c). In the present instance, claim 11 recites the broad recitation “at least partially soluble”, and the claim also recites “totally soluble” which is the narrower statement of the range/limitation as well as providing a genus organic solvent as well as species of organic solvents. The claim(s) are considered indefinite because there is a question or doubt as to whether the feature introduced by such narrower language is (a) merely exemplary of the remainder of the claim, and therefore not required, or (b) a required feature of the claims. Claim 11 is likewise rejected under 35 USC 112 b/2nd for the use of “more preferably.” Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to NEIL N TURK whose telephone number is (571)272-8914. The examiner can normally be reached M-F 930-630. 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, Charles Capozzi can be reached at 571-270-3638. 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. /NEIL N TURK/ Primary Examiner, Art Unit 1798
Read full office action

Prosecution Timeline

Sep 15, 2023
Application Filed
Feb 24, 2026
Non-Final Rejection — §101, §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
51%
Grant Probability
96%
With Interview (+44.9%)
3y 11m
Median Time to Grant
Low
PTA Risk
Based on 745 resolved cases by this examiner. Grant probability derived from career allow rate.

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