Prosecution Insights
Last updated: April 19, 2026
Application No. 18/147,693

RUBBER ANTI-DEGRADANTS AND PREPARATION METHOD THEREOF

Non-Final OA §102
Filed
Dec 28, 2022
Examiner
SCOTT, ANGELA C
Art Unit
1767
Tech Center
1700 — Chemical & Materials Engineering
Assignee
Sennics Co. Ltd.
OA Round
1 (Non-Final)
63%
Grant Probability
Moderate
1-2
OA Rounds
3y 3m
To Grant
83%
With Interview

Examiner Intelligence

Grants 63% of resolved cases
63%
Career Allow Rate
549 granted / 875 resolved
-2.3% vs TC avg
Strong +20% interview lift
Without
With
+20.1%
Interview Lift
resolved cases with interview
Typical timeline
3y 3m
Avg Prosecution
49 currently pending
Career history
924
Total Applications
across all art units

Statute-Specific Performance

§101
0.6%
-39.4% vs TC avg
§103
50.8%
+10.8% vs TC avg
§102
14.3%
-25.7% vs TC avg
§112
23.0%
-17.0% vs TC avg
Black line = Tech Center average estimate • Based on career data from 875 resolved cases

Office Action

§102
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 Applicant’s election of Group I, claims 1-9, 16, 18, and 19, in the reply filed on December 15, 2025 is acknowledged. Because applicant did not distinctly and specifically point out the supposed errors in the restriction requirement, the election has been treated as an election without traverse (MPEP § 818.01(a)). Claims 10-15, 17, and 20 are withdrawn from further consideration pursuant to 37 CFR 1.142(b) as being drawn to a nonelected invention, there being no allowable generic or linking claim. Election was made without traverse in the reply filed on December 15, 2025. Applicant's election with traverse of Species II, the compound of Formula A where Ra is a C1-C20 alkyloxy, a C3-C20 cycloalkyloxy, or a C7-C20 alkylphenyloxy, in the reply filed on December 15, 2025 is acknowledged. The traversal is on the ground that the structures in the non-elected claims have the same backbone structures and it would not pose an undue burden for search and examination. This is not found persuasive because while the backbone may be the same, the substituents are quite different. A group containing an oxygen atom will react differently than a hydrocarbon group, even on the same structural backbone. Therefore, it would be an undue burden for search and examination and applicant’s argument is unpersuasive. The requirement is still deemed proper and is therefore made FINAL. Claims 2-4 are withdrawn from further consideration pursuant to 37 CFR 1.142(b), as being drawn to a nonelected species, there being no allowable generic or linking claim. Applicant timely traversed the restriction (election) requirement in the reply filed on December 15, 2025. 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. Claims 1, 5, 6, 8, 9, 18 and 19 are rejected under 35 U.S.C. 102(a)(1) as being anticipated by Lober et al. (DE 1220124). The citations for Lober et al. are taken from an English language machine translation included herewith. Regarding claim 1, Lober et al. teaches a structure of PNG media_image1.png 106 484 media_image1.png Greyscale wherein R1 represents a lower alkyl group and R2 and R3 represent hydrogen or lower alkyl groups (¶3). Lower alkyl groups are understood to be those containing up to 5 carbon atoms (¶4). Table 1 in Lober et al. explicitly teaches compounds wherein R1 is methyl or ethyl and R2 and R3 are both hydrogens. This structure corresponds to claim 1 wherein R is a C3 chain hydrocarbon group (isopropyl), Ra is methoxy or ethoxy, and Rb is hydrogen. Regarding claim 5, Lober et al. teaches the structure of claim 5 wherein R1 is methyl or ethyl, R2 is hydrogen, and R is a C3 chain hydrocarbon (isopropyl). Regarding claim 6, Lober et al. teaches that R2 and R3 can be a lower alkyl group wherein a lower alkyl group is up to 5 carbon atoms. For R to be 1-methylpropyl, one of R2 or R3 in the structure of Lober et al. needs to be a methyl instead of a hydrogen. This structure can be at once envisaged from the disclosure of Lober et al. R can additionally be 1,3-dimethylbutyl when one of R2 or R3 is a C3 isopropyl group. Again, this structure can be at once envisaged from the disclosure. Regarding claim 8, Lober et al. also teaches the structure of Formula III wherein R1 is an alkyl group, R2 is hydrogen and R is isopropyl. Regarding claim 9, Lober et al. teaches the following structure: PNG media_image2.png 106 254 media_image2.png Greyscale . Regarding claims 18 and 19, Lober et al. teaches producing rubber mixtures for car tire treads (Example 3). Claims 1, 5-9, and 18 are rejected under 35 U.S.C. 102(a)(1) as being anticipated by FR 844402 (“the ‘402 reference”). Regarding claim 1, the ‘402 reference teaches PNG media_image3.png 86 374 media_image3.png Greyscale wherein Ra is a methoxy group, Rb is hydrogen, and R is a C6 alicyclic hydrocarbon. Regarding claims 5-8, the ‘402 reference teaches the structures of claims 5-7 wherein R1 is methyl, R2 is hydrogen, and R is a cyclohexyl group. Formula III of claim 8 is taught with the same variable definitions. Regarding claim 9, the ‘402 reference teaches the following structure: PNG media_image4.png 94 320 media_image4.png Greyscale . Regarding claim 18, the ‘402 reference teaches using this compound in a rubber composition (Page 2, Col. 1, lines 15-23). PNG media_image5.png 102 246 media_image5.png Greyscale This section of text is translated as (using Google translate): “The following examples illustrate the use of the new products in combination with natural and synthetic rubber, compared to similar known anti-aging agents; the parts mentioned in the examples refer to weights.” Claim 16 is rejected under 35 U.S.C. 102(a)(1) as being anticipated by The Merck Index. A printout of the information is included herewith. Regarding claim 16, the Merck Index teaches N-(p-methoxyphenyl)-p-phenylenediamine which has the structure PNG media_image6.png 166 344 media_image6.png Greyscale wherein Ra is methoxy and Rb is hydrogen. Correspondence Any inquiry concerning this communication or earlier communications from the examiner should be directed to ANGELA C SCOTT whose telephone number is (571)270-3303. The examiner can normally be reached Monday-Friday, 8:30-5:00, EST. 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, Mark Eashoo can be reached at 571-272-1197. 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. /ANGELA C SCOTT/Primary Examiner, Art Unit 1767
Read full office action

Prosecution Timeline

Dec 28, 2022
Application Filed
Apr 04, 2026
Non-Final Rejection — §102 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12593762
PLANT FIBER BIOCOMPOSITES
2y 5m to grant Granted Apr 07, 2026
Patent 12552925
INJECTION MOLDED ARTICLE AND SHOE
2y 5m to grant Granted Feb 17, 2026
Patent 12545053
TIRES FOR VEHICLE WHEELS
2y 5m to grant Granted Feb 10, 2026
Patent 12540251
Thermoplastic polymer powder for 3D printing with improved recyclability
2y 5m to grant Granted Feb 03, 2026
Patent 12534408
IMPROVEMENT OF THE MECHANICAL PROPERTIES OF WATERPROOFED GYPSUM BOARDS WITH POLYDIMETHYLSILOXANES
2y 5m to grant Granted Jan 27, 2026
Study what changed to get past this examiner. Based on 5 most recent grants.

AI Strategy Recommendation

Get an AI-powered prosecution strategy using examiner precedents, rejection analysis, and claim mapping.
Powered by AI — typically takes 5-10 seconds

Prosecution Projections

1-2
Expected OA Rounds
63%
Grant Probability
83%
With Interview (+20.1%)
3y 3m
Median Time to Grant
Low
PTA Risk
Based on 875 resolved cases by this examiner. Grant probability derived from career allow 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