Prosecution Insights
Last updated: May 29, 2026
Application No. 17/595,107

RECYCLABLE MOLDED ARTICLES FROM BLENDS OF COPOLYESTERS AND RECYCLED PET

Non-Final OA §103
Filed
Nov 09, 2021
Priority
May 10, 2019 — provisional 62/846,194 +1 more
Examiner
LISTVOYB, GREGORY
Art Unit
1765
Tech Center
1700 — Chemical & Materials Engineering
Assignee
Eastman Chemical Company
OA Round
5 (Non-Final)
67%
Grant Probability
Favorable
5-6
OA Rounds
0m
Est. Remaining
96%
With Interview

Examiner Intelligence

Grants 67% — above average
67%
Career Allowance Rate
806 granted / 1206 resolved
+1.8% vs TC avg
Strong +30% interview lift
Without
With
+29.6%
Interview Lift
resolved cases with interview
Typical timeline
3y 0m
Avg Prosecution
22 currently pending
Career history
1239
Total Applications
across all art units

Statute-Specific Performance

§101
0.2%
-39.8% vs TC avg
§103
72.7%
+32.7% vs TC avg
§102
9.0%
-31.0% vs TC avg
§112
2.8%
-37.2% vs TC avg
Black line = Tech Center average estimate • Based on career data from 1206 resolved cases

Office Action

§103
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and the fee set forth in 37 CFR 1.17(e) has been timely paid, the finality of the previous Office action has been withdrawn pursuant to 37 CFR 1.114.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 1/26/2026 has been entered. The previous prior art rejection under Treece et al (US 20130029068 in view of Garriga et al (US 20180194117) and Treece in view of Garriga and further in view of Shell Tung et al (US 6025405), maintained. Claim Rejections - 35 USC § 103 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. Claims 5, 7, 14 and 18 are rejected under 35 U.S.C. 103 as being unpatentable over Treece et al (US 20130029068), cited in IDS and previous Office Action in view of Garriga et al (US 20180194117), cited in previous Office Action. Claims 8-9 are rejected under 35 U.S.C. 103 as being unpatentable over Treece in view of Garriga as applied to claims 5, 7, 14 and 18 above, and further in view of Shell Tung et al (US 6025405) cited in previous Office Action. The rejection can be found in the FINAL office action mailed 7/28/2025 and is herein incorporated by reference Response to Arguments Applicant's arguments filed 1/26/2026 have been fully considered but they are not persuasive. Applicant argues that Treece teaches away from a copolyester comprising 65-85 mole% of ethylene glycol (EG) residues, because the reference discloses 88- 93 mole% range for the component above and Garriga cannot be properly combined with Treece. Examiner disagrees. As stated in the previous Office Action, Garriga discloses that 2, 2, 4, 4 - tetramethyl 1,3 -cyclobutanediol - modified polyesters is resistant against bending and kinking under mechanical load (see 0007). Therefore, it would have been obvious toa person of ordinary skills in the art to use polyester at the claimed EG/2, 2, 4, 4 - tetramethyl 1,3 -cyclobutanediol ratios in order to obtain a polymer are resistant against bending and kinking under mechanical load. Any inquiry concerning this communication or earlier communications from the examiner should be directed to GREGORY LISTVOYB whose telephone number is (571)272-6105. The examiner can normally be reached 9am-5pm EST M-F. 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, Heidi Riviere Kelley can be reached at (571) 270-1831. 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. GL /GREGORY LISTVOYB/Primary Examiner, Art Unit 1765
Read full office action

Prosecution Timeline

Show 4 earlier events
Mar 12, 2025
Request for Continued Examination
Mar 13, 2025
Response after Non-Final Action
Apr 24, 2025
Non-Final Rejection mailed — §103
Jul 11, 2025
Response Filed
Jul 28, 2025
Final Rejection mailed — §103
Jan 26, 2026
Request for Continued Examination
Jan 29, 2026
Response after Non-Final Action
Mar 19, 2026
Non-Final Rejection mailed — §103 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12637526
Dual Catalyst System for Producing High Density Polyethylenes With Long Chain Branching
2y 6m to grant Granted May 26, 2026
Patent 12630674
A Polymer and a Product or Article Comprising or Consisting of the Polymer
3y 3m to grant Granted May 19, 2026
Patent 12630800
SELF-ASSEMBLED COPOLYMERIC 3D NANOWIRE SCAFFOLD FOR CELL GROWTH AND PROLIFERATION, AND A METHOD FOR PRODUCING THEREOF
3y 4m to grant Granted May 19, 2026
Patent 12617888
POLY(LACTIC ACID-B-3-HYDROXYPROPIONIC ACID) BLOCK COPOLYMER HAVING EXCELLENT TRANSPARENCY PROPERTY AND PRODUCTS CONTAINING THE SAME
3y 2m to grant Granted May 05, 2026
Patent 12617937
RESIN COMPOSITION AND GAS-BARRIER FILM USING SAME
3y 2m to grant Granted May 05, 2026
Study what changed to get past this examiner. Based on 5 most recent grants.

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Prosecution Projections

5-6
Expected OA Rounds
67%
Grant Probability
96%
With Interview (+29.6%)
3y 0m (~0m remaining)
Median Time to Grant
High
PTA Risk
Based on 1206 resolved cases by this examiner. Grant probability derived from career allowance rate.

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