Prosecution Insights
Last updated: August 15, 2026
Application No. 18/278,932

STERICALLY HINDERED N-ALIPHATIC N-HETEROCYCLIC CARBENE CATALYSTS AND METHODS USING SAME

Final Rejection §102
Filed
Aug 25, 2023
Priority
Mar 02, 2021 — provisional 63/155,492 +1 more
Examiner
KUMAR, SRILAKSHMI K
Art Unit
1738
Tech Center
1700 — Chemical & Materials Engineering
Assignee
Rutgers, The State University of New Jersey
OA Round
2 (Final)
50%
Grant Probability
Moderate
3-4
OA Rounds
11m
Est. Remaining
66%
With Interview

Examiner Intelligence

Grants 50% of resolved cases
50%
Career Allowance Rate
305 granted / 604 resolved
-14.5% vs TC avg
Strong +16% interview lift
Without
With
+16.0%
Interview Lift
resolved cases with interview
Typical timeline
3y 11m
Avg Prosecution
118 currently pending
Career history
812
Total Applications
across all art units

Statute-Specific Performance

§101
2.2%
-37.8% vs TC avg
§103
50.0%
+10.0% vs TC avg
§102
19.9%
-20.1% vs TC avg
§112
18.8%
-21.2% vs TC avg
Black line = Tech Center average estimate • Based on career data from 604 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 . 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. Status of Claims Claims 1-3, 12 and 69-75 are currently under examination. Claims 29-30are withdrawn from consideration. Claims 4-11, 13-28 and 31-68 have been cancelled. Claims 69-75 are newly added. Claims 1-3 and 12 are amended. Previous Grounds of Rejection In the light of the amendments, the rejection under 35 U.S.C. 112(b) or 35 U.S.C. 112 (pre-AIA ), second paragraph, with respect to claims 1-3 and 12 is withdrawn. In the light of the amendments, the rejection under 35 U.S.C. 103 as being unpatentable over Archer et al. (WO 2010/118377 A2) with respect to claims 1-3 and 12 is withdrawn. New grounds of rejections are set forth below. New Grounds of Rejections 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 1-3 and 74-75 are rejected under 35 U.S.C. 102(a)(1) as being anticipated by Lohre et al. (Tetrahedron, 68, 2012, 7636-7644). Regarding claim 1, Lohre et al. teach a ligand 6 having the structure as shown below (Scheme 3 on page 7638): PNG media_image1.png 132 158 media_image1.png Greyscale As we see above, the compound 6 taught by Lohre et al. corresponds to the instant claimed compound formula (I), wherein X=BF4-, a=single bond, m=1, R1=R2=H, R3, R4 are substituted C6 cycloalkyl groups as the instant claim. Regarding claims 2-3, as discussed above, the compound 6 taught by Lohre et al. has X as being BF4- and m is 1. Regarding claims 74-75, as discussed above, the R1, R2 groups, and R3 and R4 groups are identical. Allowable Subject Matter Claims 12 and 69-73 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. Response to Arguments With regards to the previous Grounds of Rejection Applicant's arguments filed on 06/19/2026 have been considered but are moot in view of the new grounds of rejections. 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 YUN QIAN whose telephone number is (571)270-5834. The examiner can normally be reached Monday-Thursday 10:00am-4:00pm. 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, Sally A Merkling can be reached at 571-272-6297. 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. YUN . QIAN Examiner Art Unit 1732 /YUN QIAN/ Primary Examiner, Art Unit 1738
Read full office action

Prosecution Timeline

Aug 25, 2023
Application Filed
Mar 19, 2026
Non-Final Rejection mailed — §102
Jun 19, 2026
Response Filed
Jul 02, 2026
Final Rejection mailed — §102 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

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2y 7m to grant Granted Jun 02, 2026
Patent 12420336
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3y 8m to grant Granted Sep 16, 2025
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
50%
Grant Probability
66%
With Interview (+16.0%)
3y 11m (~11m remaining)
Median Time to Grant
Moderate
PTA Risk
Based on 604 resolved cases by this examiner. Grant probability derived from career allowance rate.

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