Prosecution Insights
Last updated: April 19, 2026
Application No. 17/991,146

EPOXY COMPOSITION CONTAINING COPOLYAMIDE AND BLOCK COPOLYMER WITH POLYAMIDE AND POLYETHER BLOCKS

Final Rejection §103§112§DP
Filed
Nov 21, 2022
Examiner
WOODWARD, ANA LUCRECIA
Art Unit
1765
Tech Center
1700 — Chemical & Materials Engineering
Assignee
ZEPHYROS, INC.
OA Round
2 (Final)
73%
Grant Probability
Favorable
3-4
OA Rounds
2y 9m
To Grant
90%
With Interview

Examiner Intelligence

Grants 73% — above average
73%
Career Allow Rate
888 granted / 1216 resolved
+8.0% vs TC avg
Strong +17% interview lift
Without
With
+16.6%
Interview Lift
resolved cases with interview
Typical timeline
2y 9m
Avg Prosecution
39 currently pending
Career history
1255
Total Applications
across all art units

Statute-Specific Performance

§101
0.5%
-39.5% vs TC avg
§103
31.3%
-8.7% vs TC avg
§102
21.0%
-19.0% vs TC avg
§112
34.4%
-5.6% vs TC avg
Black line = Tech Center average estimate • Based on career data from 1216 resolved cases

Office Action

§103 §112 §DP
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 . Election/Restrictions Claims 19-27 are withdrawn from further consideration pursuant to 37 CFR 1.142(b) as being drawn to a nonelected group, there being no allowable generic or linking claim. Election was made without traverse in the reply filed on April 21, 2025. Claim Objections Claim 29 is objected to because of the following informalities: In line 3, the term “and” is confusing. Appropriate correction is required. Claim Rejections - 35 USC § 112 Claims 15-18 and 28-34 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. In claim 15, the intended use recitation is indefinite in that it is how the composition is “adapted”, such that it can be combined with an epoxy-based material. Claim Rejections - 35 USC § 103 In the event the determination of the status of the application as subject to AIA 35 U.S.C. 102 and 103 (or as subject to pre-AIA 35 U.S.C. 102 and 103) is incorrect, any correction of the statutory basis (i.e., changing from AIA to pre-AIA ) for the rejection will not be considered a new ground of rejection if the prior art relied upon, and the rationale supporting the rejection, would be the same under either status. 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 15-18 are rejected under 35 U.S.C. 103 as being unpatentable over US 2008/0182945 (Malet). Malet discloses a composition comprising: a block copolymer having polyamide blocks and polyether blocks (meets Applicant’s block copolymer a)); and an additional polymer inclusive of copolyamides which are not predominately composed of lauryl lactam and containing more than one polyamide unit [0050] (meets Applicant’s co-polyamide b)) (e.g., abstract, [0050]). As to claim 15, while not expressly exemplified in the examples, it is within the purview of Malet’s inventive disclosure, and obvious to one having ordinary skill in the art, to produce compositions comprising a copolyamide as component (B). The selection of a known material based on its suitability for its intended use supports a prima facie case of obviousness, Sinclair & Carroll Co. v. Interchemical Corp., 65 USPQ 297. Notably, Malet does not expressly disclose that the composition can be combined with an epoxy-based material, i.e., the presently claimed intended use. Given that Malet’s composition is compositionally the same as that presently claimed, it would be expected that the former would have the same intended use. A recitation of the intended use of the claimed invention must result in a structural difference between the claimed invention and the prior art in order to patentably distinguish the claimed invention from the prior art. If the prior art structure is capable of performing the intended use, then it meets the claim. As to claim 16, Malet is unlimited as regards the melting point of the copolyamide (B) and, as such implicitly suggests that any melting point (inclusive of that presently claimed) can be used with the reasonable expectation of success, absent evidence of criticality thereof. As to claim 17, Malet’s exemplified copolymers comprise polytetramethylene glycol (PTMG) polyether blocks. As to claim 18, Malet expressly discloses copolyamides comprising different polyamide units [0050] as a viable component (B), rendering their use obvious to one having ordinary skill in the art. 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 15-18 and 28-34 are rejected on the ground of nonstatutory double patenting as being unpatentable over the claims of U.S. Patent No. 10,501,619 and 11,505,695. Although the claims at issue are not identical, they are not patentably distinct from each other because the patented claims are directed to similarly-constituted compositions which include the presently claimed components. Response to Arguments Applicant's arguments filed December 15, 2025 have been fully considered but they are not persuasive. Applicant’s argument that Malet does not disclose the presently claimed combination of components per claim 15 is not well taken. Malet clearly provides compositions wherein component (B) is a copolyamide. While Malet does not expressly disclose that the composition can be combined with an epoxy-based material, i.e., the presently claimed intended use, Malet’s similarly-constituted composition would be expected to have the same intended use. There is at present no evidence to demonstrate that there is a structural difference between the claimed invention and the prior art. That is, a recitation of the intended use of the claimed invention must result in a structural difference between the claimed invention and the prior art in order to patentably distinguish the claimed invention from the prior art. If the prior art structure is capable of performing the intended use, then it meets the claim. Conclusion THIS ACTION IS MADE FINAL. 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 Ana L Woodward whose telephone number is (571)272-1082. The examiner can normally be reached M-F 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, Heidi 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. /ANA L. WOODWARD/Primary Examiner, Art Unit 1765
Read full office action

Prosecution Timeline

Nov 21, 2022
Application Filed
Jun 11, 2025
Non-Final Rejection — §103, §112, §DP
Dec 15, 2025
Response Filed
Jan 27, 2026
Final Rejection — §103, §112, §DP (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

3-4
Expected OA Rounds
73%
Grant Probability
90%
With Interview (+16.6%)
2y 9m
Median Time to Grant
Moderate
PTA Risk
Based on 1216 resolved cases by this examiner. Grant probability derived from career allow rate.

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