Prosecution Insights
Last updated: August 16, 2026
Application No. 18/258,972

OPTICAL DEVICE FORMING AN ELECTROCHROMIC OPHTHALMIC LENS, SPECTACLE GLASSES INCORPORATING IT AND METHOD FOR MANUFACTURING THE SAME

Final Rejection §112
Filed
Jun 22, 2023
Priority
Dec 23, 2020 — EU 20306667.5 +1 more
Examiner
TRA, TUYEN Q
Art Unit
2872
Tech Center
2800 — Semiconductors & Electrical Systems
Assignee
Essilor International
OA Round
2 (Final)
86%
Grant Probability
Favorable
3-4
OA Rounds
0m
Est. Remaining
95%
With Interview

Examiner Intelligence

Grants 86% — above average
86%
Career Allowance Rate
879 granted / 1025 resolved
+17.8% vs TC avg
Moderate +9% lift
Without
With
+9.0%
Interview Lift
resolved cases with interview
Typical timeline
2y 3m
Avg Prosecution
17 currently pending
Career history
1036
Total Applications
across all art units

Statute-Specific Performance

§101
1.7%
-38.3% vs TC avg
§103
44.7%
+4.7% vs TC avg
§102
35.9%
-4.1% vs TC avg
§112
13.0%
-27.0% vs TC avg
Black line = Tech Center average estimate • Based on career data from 1025 resolved cases

Office Action

§112
DETAILED ACTION 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 § 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 1 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. Claim 1 recites four electrodes “at least one pair of transparent electrodes”, “a front electrode” and “a rear electrode”; however, specification does not clearly disclose how each electrode is located in the device. An appropriate correction is required. Dependent claims 1-3,6-13,16 and 18-20 are also rejected since they are inherited the above rejection. Allowable Subject Matter Claims 1-3,6-13,16 and 18-20 would be allowable if rewritten or amended to overcome the rejection(s) under 35 U.S.C. 112(b) or 35 U.S.C. 112 (pre-AIA ), 2nd paragraph, set forth in this Office action. Response to Amendment Applicant’s arguments with respect to claims 1-3,6-13,16 and 18-20 have been considered but are moot because the new ground of rejection does not rely on any reference applied in the prior rejection of record for any teaching or matter specifically challenged in the argument. 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. Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to TUYEN TRA whose telephone number is (571)272-2343. The examiner can normally be reached M-F 10-6. 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, Bumsuk Won can be reached at 571-272-2713. 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. /TUYEN TRA/Primary Examiner, Art Unit 2872
Read full office action

Prosecution Timeline

Jun 22, 2023
Application Filed
Jan 27, 2026
Non-Final Rejection mailed — §112
Apr 27, 2026
Response Filed
Jul 29, 2026
Final Rejection mailed — §112 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12699285
EYEWEAR LENS ATTACHMENT SYSTEM
2y 8m to grant Granted Aug 04, 2026
Patent 12693553
MELANOPSIN BLOCKER
2y 6m to grant Granted Jul 28, 2026
Patent 12693491
LENS APPARATUS AND IMAGE PICKUP APPARATUS
2y 6m to grant Granted Jul 28, 2026
Patent 12681332
PHOTOCHROMIC LENS WITH BIFOCAL FILM LAYER AND PREPARATION METHOD FOR PHOTOCHROMIC LENS
2y 8m to grant Granted Jul 14, 2026
Patent 12681331
ELECTROCHROMIC ELEMENT AND LENS FOR SPECTACLES
2y 8m to grant Granted Jul 14, 2026
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
86%
Grant Probability
95%
With Interview (+9.0%)
2y 3m (~0m remaining)
Median Time to Grant
Moderate
PTA Risk
Based on 1025 resolved cases by this examiner. Grant probability derived from career allowance rate.

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