Prosecution Insights
Last updated: October 02, 2026
Application No. 18/260,105

A METHOD OF RECYCLING POLY(VINYL BUTYRAL) FROM MULTILAYER POLY(VINYL BUTYRAL) SHEETS

Final Rejection §DOUBLEPATENT
Filed
Jun 30, 2023
Priority
Jan 11, 2021 — provisional 63/135,847 +1 more
Examiner
RUNYAN, SILVANA C
Art Unit
3674
Tech Center
3600 — Transportation & Electronic Commerce
Assignee
Eastman Chemical Company
OA Round
2 (Final)
82%
Grant Probability
Favorable
3-4
OA Rounds
0m
Est. Remaining
99%
With Interview

Examiner Intelligence

Grants 82% — above average
82%
Career Allowance Rate
877 granted / 1064 resolved
+30.4% vs TC avg
Strong +17% interview lift
Without
With
+16.9%
Interview Lift
resolved cases with interview
Fast prosecutor
2y 2m
Avg Prosecution
37 currently pending
Career history
1117
Total Applications
across all art units

Statute-Specific Performance

§101
1.2%
-38.8% vs TC avg
§103
45.1%
+5.1% vs TC avg
§102
25.8%
-14.2% vs TC avg
§112
19.6%
-20.4% vs TC avg
Black line = Tech Center average estimate • Based on career data from 1064 resolved cases

Office Action

§DOUBLEPATENT
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 . Response to Arguments Applicant’s arguments, filed on 07/01/2026, with respect to objection to the specification and claims 2, 3, 6, 8-11, 14, and 17 have been fully considered and are persuasive. The objection of the specification and claims has been withdrawn. Applicant’s arguments, filed on 07/01/2026, with respect to rejection of claims 1, 2, 3, 10, 11, 14 under 35 USC 112 (b) 2nd have been fully considered and are persuasive. The rejection of the claims has been withdrawn. Applicant’s arguments, filed on 07/01/2026, with respect to Double Patenting Rejection as being unpatentable over copending Application No. 18/875,462 has have been fully considered and are persuasive. The Double Patenting Rejection has been withdrawn. Double Patenting The nonstatutory double patenting rejection is based on a judicially created doctrine grounded in public policy (a policy reflected in the statute) so as to prevent the unjustified or improper timewise extension of the “right to exclude” granted by a patent and to prevent possible harassment by multiple assignees. A nonstatutory double patenting rejection is appropriate where the conflicting claims are not identical, but at least one examined application claim is not patentably distinct from the reference claim(s) because the examined application claim is either anticipated by, or would have been obvious over, the reference claim(s). See, e.g., In re Berg, 140 F.3d 1428, 46 USPQ2d 1226 (Fed. Cir. 1998); In re Goodman, 11 F.3d 1046, 29 USPQ2d 2010 (Fed. Cir. 1993); In re Longi, 759 F.2d 887, 225 USPQ 645 (Fed. Cir. 1985); In re Van Ornum, 686 F.2d 937, 214 USPQ 761 (CCPA 1982); In re Vogel, 422 F.2d 438, 164 USPQ 619 (CCPA 1970); In re Thorington, 418 F.2d 528, 163 USPQ 644 (CCPA 1969). A timely filed terminal disclaimer in compliance with 37 CFR 1.321(c) or 1.321(d) may be used to overcome an actual or provisional rejection based on nonstatutory double patenting provided the reference application or patent either is shown to be commonly owned with the examined application, or claims an invention made as a result of activities undertaken within the scope of a joint research agreement. See MPEP § 717.02 for applications subject to examination under the first inventor to file provisions of the AIA as explained in MPEP § 2159. See MPEP § 2146 et seq. for applications not subject to examination under the first inventor to file provisions of the AIA . A terminal disclaimer must be signed in compliance with 37 CFR 1.321(b). The filing of a terminal disclaimer by itself is not a complete reply to a nonstatutory double patenting (NSDP) rejection. A complete reply requires that the terminal disclaimer be accompanied by a reply requesting reconsideration of the prior Office action. Even where the NSDP rejection is provisional the reply must be complete. See MPEP § 804, subsection I.B.1. For a reply to a non-final Office action, see 37 CFR 1.111(a). For a reply to final Office action, see 37 CFR 1.113(c). A request for reconsideration while not provided for in 37 CFR 1.113(c) may be filed after final for consideration. See MPEP §§ 706.07(e) and 714.13. The USPTO Internet website contains terminal disclaimer forms which may be used. Please visit www.uspto.gov/patent/patents-forms. The actual filing date of the application in which the form is filed determines what form (e.g., PTO/SB/25, PTO/SB/26, PTO/AIA /25, or PTO/AIA /26) should be used. A web-based eTerminal Disclaimer may be filled out completely online using web-screens. An eTerminal Disclaimer that meets all requirements is auto-processed and approved immediately upon submission. For more information about eTerminal Disclaimers, refer to www.uspto.gov/patents/apply/applying-online/eterminal-disclaimer. Claims 1, 3, and 5-12 are provisionally rejected on the ground of nonstatutory double patenting as being unpatentable over claims 1, and 7-20 of copending Application No. 19/163,434 (‘434 herein). Although the claims at issue are not identical, they are not patentably distinct from each other because the instant application independent claim 1 including its dependent claims are contained in the patent application ‘404 with exception of step a) of grinding the plasticizer poly(vinyl butyral) multilayer, however, ‘434 recites the poly(vinyl butyral) granular. It would have been obvious to a person of ordinary skill in the art before the effective filling date of the claimed invention that poly(vinyl butyral) multilayer would be ground in order to produce the granular form of poly(vinyl butyral), therefore, it would be part of the process of recovering poly(vinyl butyral). All the claims dependent of rejected claim 1 are also rejected. This is a provisional nonstatutory double patenting rejection because the patentably indistinct claims have not in fact been patented. Conclusion Applicant's submission of an information disclosure statement under 37 CFR 1.97(c) with the timing fee set forth in 37 CFR 1.17(p) on 07/01/2026 prompted the new ground(s) of rejection presented in this Office action. Accordingly, THIS ACTION IS MADE FINAL. See MPEP § 609.04(b). Applicant is reminded of the extension of time policy as set forth in 37 CFR 1.136(a). A shortened statutory period for reply to this final action is set to expire THREE MONTHS from the mailing date of this action. In the event a first reply is filed within TWO MONTHS of the mailing date of this final action and the advisory action is not mailed until after the end of the THREE-MONTH shortened statutory period, then the shortened statutory period will expire on the date the advisory action is mailed, and any nonprovisional extension fee (37 CFR 1.17(a)) pursuant to 37 CFR 1.136(a) will be calculated from the mailing date of the advisory action. In no event, however, will the statutory period for reply expire later than SIX MONTHS from the mailing date of this final action. Any inquiry concerning this communication or earlier communications from the examiner should be directed to SILVANA C RUNYAN whose telephone number is (571)270-5415. The examiner can normally be reached M-F 7:30-4:30. 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, Sue Liu Hutton can be reached at 571-272-5539. 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. /SILVANA C RUNYAN/Primary Examiner, Art Unit 1616 08/19/2026
Read full office action

Prosecution Timeline

Jun 30, 2023
Application Filed
Feb 02, 2026
Non-Final Rejection mailed — §DOUBLEPATENT
Jul 01, 2026
Response Filed
Aug 21, 2026
Final Rejection mailed — §DOUBLEPATENT (current)

Precedent Cases

Applications granted by this same examiner with similar technology

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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
82%
Grant Probability
99%
With Interview (+16.9%)
2y 2m (~0m remaining)
Median Time to Grant
Moderate
PTA Risk
Based on 1064 resolved cases by this examiner. Grant probability derived from career allowance rate.

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