Prosecution Insights
Last updated: October 01, 2026
Application No. 19/367,994

CURE ACCELERATORS FOR ANAEROBIC CURABLE COMPOSITIONS

Final Rejection §103
Filed
Oct 24, 2025
Priority
Aug 18, 2020 — provisional 63/066,980 +2 more
Examiner
FOSS, DAVID ROGER
Art Unit
1764
Tech Center
1700 — Chemical & Materials Engineering
Assignee
Henkel AG & Co. KGaA
OA Round
4 (Final)
74%
Grant Probability
Favorable
5-6
OA Rounds
2y 5m
Est. Remaining
99%
With Interview

Examiner Intelligence

Grants 74% — above average
74%
Career Allowance Rate
94 granted / 127 resolved
+9.0% vs TC avg
Strong +34% interview lift
Without
With
+34.5%
Interview Lift
resolved cases with interview
Typical timeline
3y 4m
Avg Prosecution
29 currently pending
Career history
157
Total Applications
across all art units

Statute-Specific Performance

§101
0.7%
-39.3% vs TC avg
§103
50.5%
+10.5% vs TC avg
§102
15.6%
-24.4% vs TC avg
§112
25.0%
-15.0% vs TC avg
Black line = Tech Center average estimate • Based on career data from 127 resolved cases

Office Action

§103
DETAILED ACTION Summary Applicant’s amendment dated 10 August 2026 is acknowledged. Claims 6-10 are pending. The text of those sections of Title 35, U.S. Code not included in this action can be found in a prior Office action. New grounds of rejection set forth below are necessitated by applicant’s amendment dated 10 August 2026. For this reason, this action is properly made final. 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 § 103 Claims 6 and 10 are rejected under 35 U.S.C. 103 as being unpatentable over NEWBERTH (US-6596808-B1) in view of KIM (WO-2012046917-A1). Regarding Claims 6 and 10, NEWBERTH teaches an anaerobic adhesive composition (Abstract) comprising an anaerobically curable (meth)acrylate monomer and a cure system for said (meth)acrylate monomer (Col 4: 8-10). This satisfies components (a) and (b) recited by the claim. NEWBERTH teaches that it is desirable to include a monofunctional acrylate ester which has a relatively polar alcoholic moiety as the polar group tends to provide intermolecular attraction during and after the cure resulting in a more desirable cure properties as well as a more durable adhesive (Col 5: 41-48). NEWBERTH teaches that particularly desirable polar groups include heterocyclic rings (Col 5: 48-50). NEWBERTH teaches that this monomers are often incorporated as reactive diluents capable of copolymerization with other materials (Col 5:55-57). NEWBERTH exemplifies a heterocyclic methacrylate in combination with an alkyl methacrylate (Composition H: Col 12: 63) but does not exemplify a heterocyclic methacrylate which would satisfy structure I recited by Claim 6, exemplifying tetrahydrofurfuryl methacrylate (2455-24-5, Col 5: 52) instead. KIM, in an invention of a (meth)acrylate-based polymer (Abstract), teaches many (meth)acrylate monomers with heterocyclic side groups with 2-20 carbon atoms (p. 5, center of page) including tetrafurfuryl methacrylate (Example 7) and the isomers of piperidinyl methacrylate including the following structure (p. 6 of Korean document, structure 18): PNG media_image1.png 248 316 media_image1.png Greyscale which satisfies structure I recited by the claim where R is a methacryl unit, R6, A and A’ are hydrogen, X is CH2 and n is 1, and satisfies the structure recited in Claim 10. The structure above shows the polymerized repeat unit. KIM teaches that its (meth)acrylate polymer is formed from (meth)acrylic monomers (p. 12, par. 1). KIM exemplifies its heterocyclic (meth)acrylate in combination with other methacrylates such as t-butyl (meth)acrylate (p. 12, Example 7 referring to Example 1). KIM teaches that its (meth)acrylate compounds promote adhesion to a substrate (p. 2, par. 4; p. 11, par. 2) which is relevant to the invention of NEWBERTH. It would be obvious to one of ordinary skill in the art at the time of the effective filing date of the current invention to modify the invention of NEWBERTH with the teachings of KIM and use a piperidinyl methacrylate monomer as its heterocyclic monomer as it is an equivalent and interchangeable monomer and promotes adhesion to a substrate. Case law holds that the mere substitution of an equivalent (something equal in value or meaning, as taught by analogous prior art) is not an act of invention; where equivalency is known to the prior art, the substitution of one equivalent for another is not patentable. See In re Ruff 118 USPQ 343 (CCPA 1958). NEWBERTH and KIM do not characterize its heterocyclic methacrylates as curing accelerators, but NEWBERTH teaches that these monomers produce more desirable cure properties (Col 5: 41-48) and the instant specification uses the same piperidin-3-methacrylate structure as an accelerator in its instant examples (cur spec: [00102]) so it is presumed to have cure-accelerator functionality. Allowable Subject Matter Claims 7-9 are allowed. The following is a statement of reasons for the indication of allowable subject matter: Claims 7-9 were deemed allowable in the previous office action and the status of these claims is unchanged. Claims 7-8 are allowable for the same reasons set forth in the non-final action dated 14 May 2026. Claim 9 is allowable for the same reason set forth in the final action dated 18 February 2026. Response to Arguments Applicant's arguments filed 10 August 2026 have been fully considered but they are not persuasive. Applicant argues that the amendment specifying that the cure accelerator is a compound present in addition to the (a) component overcomes the rejections of the previous office action. In response, both NEWBERTH and KIM, teach that its (meth)acrylate component may contain multiple monomers. NEWBERTH teaches an anaerobically curable composition containing a heterocyclic methacrylate in combination with an alkyl methacrylate and methacrylic acid as monomer compounds (Col 12: Composition H). KIM also teaches examples containing a combination of a heterocyclic methacrylate and other methacrylates as monomer compounds (Example 7) and includes general teachings which make obvious the heterocyclic methacrylate recited in Claim 10. Although neither NEWBERTH nor KIM characterizes their heterocyclic methacrylates as cure accelerators. This characterization is an 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. The prior art makes obvious the recited Claim 10 compound in an anaerobically curable composition which include other methacrylate. This compound is presumed capable of performing the intended use of a cure accelerator because it is the same compound used in the instant examples and is recited by Claim 10. Note that the claims do not recite any amounts for the (c) component, either absolute or relative to the other components, that could be used to distinguish the compositions taught in the prior art with those disclosed in the instant invention. Conclusion 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 DAVID R FOSS whose telephone number is (571)272-4821. The examiner can normally be reached Monday - Friday 8:00 - 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, ARRIE LANEE REUTHER can be reached at (571)270-7026. 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. /D.R.F./Examiner, Art Unit 1764 /KREGG T BROOKS/Primary Examiner, Art Unit 1764
Read full office action

Prosecution Timeline

Show 2 earlier events
Jan 21, 2026
Response Filed
Feb 18, 2026
Final Rejection mailed — §103
Apr 09, 2026
Response after Non-Final Action
May 05, 2026
Request for Continued Examination
May 07, 2026
Response after Non-Final Action
May 14, 2026
Non-Final Rejection mailed — §103
Aug 10, 2026
Response Filed
Aug 25, 2026
Final Rejection mailed — §103 (current)

Precedent Cases

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FILM
4y 1m to grant Granted May 12, 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
74%
Grant Probability
99%
With Interview (+34.5%)
3y 4m (~2y 5m remaining)
Median Time to Grant
High
PTA Risk
Based on 127 resolved cases by this examiner. Grant probability derived from career allowance rate.

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