Prosecution Insights
Last updated: August 30, 2026
Application No. 18/478,252

PHTHALONITRILE MONOMERS AND CURABLE COMPOSITION COMPRISING THE PHTHALONITRILE MONOMERS

Final Rejection §102§103§112
Filed
Sep 29, 2023
Examiner
WHITELEY, JESSICA
Art Unit
1763
Tech Center
1700 — Chemical & Materials Engineering
Assignee
Canon Inc.
OA Round
2 (Final)
89%
Grant Probability
Favorable
3-4
OA Rounds
0m
Est. Remaining
96%
With Interview

Examiner Intelligence

Grants 89% — above average
89%
Career Allowance Rate
1352 granted / 1526 resolved
+23.6% vs TC avg
Moderate +7% lift
Without
With
+7.1%
Interview Lift
resolved cases with interview
Fast prosecutor
1y 11m
Avg Prosecution
42 currently pending
Career history
1553
Total Applications
across all art units

Statute-Specific Performance

§101
1.5%
-38.5% vs TC avg
§103
33.4%
-6.6% vs TC avg
§102
33.8%
-6.2% vs TC avg
§112
18.5%
-21.5% vs TC avg
Black line = Tech Center average estimate • Based on career data from 1526 resolved cases

Office Action

§102 §103 §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 . This Office Action is in response to the amendments and arguments filed July 10, 2026 wherein claims 1-12 and 14-23 are currently pending. 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. Claim 10 is 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. Claims 11 and 12 depend on claim 10 and, therefore, are also rejected. Claim 10 recites the limitation "the curable composition of claim 1" in line 1. There is insufficient antecedent basis for this limitation in the claim. Claim 10 recites the limitation "the second monomer" in line 1. There is insufficient antecedent basis for this limitation in the claim. Claim Rejections - 35 USC § 102 The following is a quotation of the appropriate paragraphs of 35 U.S.C. 102 that form the basis for the rejections under this section made in this Office action: A person shall be entitled to a patent unless – (a)(1) the claimed invention was patented, described in a printed publication, or in public use, on sale, or otherwise available to the public before the effective filing date of the claimed invention. (a)(2) the claimed invention was described in a patent issued under section 151, or in an application for patent published or deemed published under section 122(b), in which the patent or application, as the case may be, names another inventor and was effectively filed before the effective filing date of the claimed invention. Claim 1 is rejected under 35 U.S.C. 102(a)(1) as being anticipated by Zou et al (2014, J. Appl. Polym. Sci., 10, 41203, 1-7). PNG media_image1.png 110 362 media_image1.png Greyscale With regards to claim 1, Zou teaches the following monomer: (page 2). Claims 1 and 2 are rejected under 35 U.S.C. 102(a)(1) as being anticipated by Zhou et al (CN 113105599). With regards to claims 1 and 2, Zhou teaches the following monomer: PNG media_image2.png 69 331 media_image2.png Greyscale (page 3) wherein R7 and R8 are hydrogen atoms (page 4). 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 1-2, 4-5, 7-12, and 14-23 are rejected under 35 U.S.C. 103 as being unpatentable over Sumner et al (2004, Polymer, 45, 5199-5206) in view of Zhou et al (CN 113105599). With regards to claims 1 and 2, Sumner teaches the following compound: PNG media_image3.png 357 136 media_image3.png Greyscale (page 5202) reading on figure (I). Sumner does not teach the claimed monomer wherein the variable “n” is 2 to 4. The disclosure of Zhou is adequately set forth in paragraph 7 above and is herein incorporated by reference. Sumner teaches the motivation for using the monomer to be because it has a wide curing window and self-catalyzing curing behavior and has short curing time (abstract). Sumner and Zhou are analogous in the art of monomers used in curable compositions. In light of the benefit above, it would be obvious to one skilled in the art prior to the effective filing date of the present invention to use the monomer of Zhou in the composition of Sumner, thereby obtaining the present invention. With regards to claims 4-5 and 21-23, Sumner teaches the above compound to be combined with other monomers and benzoyl peroxide (reading on an initiator) (page 5203) and to have a viscosity of below 1,000 cps (page 5204). Sumner does not teach the claimed monomer wherein the variable “n” is 2 to 4. The disclosure of Zhou is adequately set forth in paragraph 7 above and is herein incorporated by reference. Sumner teaches the motivation for using the monomer to be because it has a wide curing window and self-catalyzing curing behavior and has short curing time (abstract). Sumner and Zhou are analogous in the art of monomers used in curable compositions. In light of the benefit above, it would be obvious to one skilled in the art prior to the effective filing date of the present invention to use the monomer of Zhou in the composition of Sumner, thereby obtaining the present invention. With regards to claim 7, Sumner teaches the amount of the phthalonitrile compound to be 20, 30, or 40% (page 5202). With regards to claim 8, Sumner teaches the amount of the phthalonitrile compound to be 20% (page 5202). With regards to claim 9, Sumner teaches the following compound to be added to the phthalonitrile compound: PNG media_image4.png 100 377 media_image4.png Greyscale (page 5203) reading on not containing a phthalonitrile group. With regards to claims 10 and 11, Sumner teaches the following compound to be added to the phthalonitrile compound: PNG media_image4.png 100 377 media_image4.png Greyscale (page 5203) reading on an aromatic multifunctional vinyl monomer. With regards to claim 12, Sumner teaches the amount of monomer to be 70% (page 5201). With regards to claim 13, Sumner teaches the viscosity of the resin to be less than about 1000 cps (reading on less than 1000 mPa·s) (page 5204). With regards to claim 14, Sumner teaches the phthalonitrile to be 20%, the amount of multifunctional monomer is 70% (page 5201) reading on 90% of polymerizable monomer. With regards to claim 15, Sumner teaches the amount of carbon atoms to be 52 in a composition having 10 non carbon atoms (page 5203) reading on 83.9%. With regards to claim 16, Sumner is silent on the use of the composition for a laminate. However, when the composition recited in the reference is substantially identical to that of the claims, the claimed properties or function are presumed inherent. MPEP 2112.01. Because the prior art exemplifies Applicant’s claimed composition in that the claimed components are used, the claimed physical properties relating to the claimed tests are inherently present in the prior art. Absent an objective showing to the contrary, the addition of the claimed physical properties to the claim language fails to provide patentable distinction over the prior art. With regards to claims 17 and 19, Sumner is silent on the composition’s thermal degradation temperature. However, when the composition recited in the reference is substantially identical to that of the claims, the claimed properties or function are presumed inherent. MPEP 2112.01. Because the prior art exemplifies Applicant’s claimed composition in that the claimed components are used, the claimed physical properties relating to the thermal degradation temperature are inherently present in the prior art. Absent an objective showing to the contrary, the addition of the claimed physical properties to the claim language fails to provide patentable distinction over the prior art. With regards to claims 18 and 20, Sumner teaches the composition to be polymerized with heat (page 5203) however does not teach the use of an imprint template or superstrate in order to impart a pattern to the polymerization. However, it would have been obvious to one skilled in the art prior to the effective filing date of the present invention to add an imprint template or superstrate in order to achieve a polymerization pattern or localize the polymerization to specific locations. Allowable Subject Matter Claims 3 and 6 are objected to as being dependent upon a rejected base claim, but would be allowable if rewritten in independent form including all of the limitations of the base claim and any intervening claims. The art on record does not teach the specifically claimed compounds. Response to Arguments Applicant’s arguments, see pages 7-11, filed July 10, 2026, with respect to the rejection(s) of claim(s) 1-2, 4-5, 7-12, and 14-23 under 35 USC 102(a)(1) with respect to Sumner et al (2004, 45, 5199-5206) have been fully considered and are persuasive. Therefore, the rejection has been withdrawn. However, upon further consideration, a new ground(s) of rejection is made in view of Zhou et al (2014, J. Appl. Polym. Sci., 10, 41203, 1-7). Conclusion The prior art made of record and not relied upon is considered pertinent to applicant's disclosure. The following references also teach the compound Zou et al: Zou et al (2017, Polymer Composites, 1591-1599), Wang et al (10/10/2022, ACS Omega, 7, 37170-37179), Zou et al (2016, J. POlym. Res, 23: 2, 1-9), Jiang et al (2017, High Performance Polymers, Vol 29(9), 1016-1026), and Liu et al (CN 103664699). Applicant's amendment necessitated the new ground(s) of rejection presented in this Office action. Accordingly, THIS ACTION IS MADE FINAL. See MPEP § 706.07(a). 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 JESSICA WHITELEY whose telephone number is (571)272-5203. The examiner can normally be reached 8 - 5:00. 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, Joseph Del Sole can be reached at 5712721130. 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. /JESSICA WHITELEY/Primary Examiner, Art Unit 1763
Read full office action

Prosecution Timeline

Sep 29, 2023
Application Filed
Apr 14, 2026
Non-Final Rejection mailed — §102, §103, §112
Jul 10, 2026
Response Filed
Aug 05, 2026
Final Rejection mailed — §102, §103, §112 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12716004
THERMAL-CURABLE COMPOSITION FOR INKJET ADAPTIVE PLANARIZATION
2y 11m to grant Granted Aug 25, 2026
Patent 12709703
COMPOSITION
3y 5m to grant Granted Aug 18, 2026
Patent 12702729
RESORBABLE COMPLEX SHAPE MEMORY POLY(PROPYLENE FUMARATE) STAR SCAFFOLDS FOR 4D PRINTING APPLICATIONS
3y 5m to grant Granted Aug 11, 2026
Patent 12703799
COMPOSITION FOR FORMING COLORED LAYER, OPTICAL FILM, AND DISPLAY DEVICE
2y 6m to grant Granted Aug 11, 2026
Patent 12692410
High temperature stability epoxy resin composition and encapsulation material comprising the same
4y 3m to grant Granted Jul 28, 2026
Study what changed to get past this examiner. Based on 5 most recent grants.

Strategy Recommendation AI-generated — please review before filing

Get a prosecution strategy drawn from examiner precedents, rejection analysis, and claim mapping.
Typically takes 5-10 seconds — AI-generated, attorney review required before filing

Prosecution Projections

3-4
Expected OA Rounds
89%
Grant Probability
96%
With Interview (+7.1%)
1y 11m (~0m remaining)
Median Time to Grant
Moderate
PTA Risk
Based on 1526 resolved cases by this examiner. Grant probability derived from career allowance rate.

Sign in with your work email

Enter your email to receive a magic link. No password needed.

Personal email addresses (Gmail, Yahoo, etc.) are not accepted.

Free tier: 3 strategy analyses per month