Prosecution Insights
Last updated: April 19, 2026
Application No. 18/030,836

COMPOSITION, AND OPTICAL MATERIAL AND LENS USING SAID COMPOSITION

Non-Final OA §103§DP
Filed
Apr 07, 2023
Examiner
FANG, SHANE
Art Unit
1766
Tech Center
1700 — Chemical & Materials Engineering
Assignee
Mitsubishi Gas Chemical Company Inc.
OA Round
1 (Non-Final)
76%
Grant Probability
Favorable
1-2
OA Rounds
2y 6m
To Grant
95%
With Interview

Examiner Intelligence

Grants 76% — above average
76%
Career Allow Rate
1136 granted / 1491 resolved
+11.2% vs TC avg
Strong +19% interview lift
Without
With
+19.0%
Interview Lift
resolved cases with interview
Typical timeline
2y 6m
Avg Prosecution
51 currently pending
Career history
1542
Total Applications
across all art units

Statute-Specific Performance

§101
0.4%
-39.6% vs TC avg
§103
43.9%
+3.9% vs TC avg
§102
24.3%
-15.7% vs TC avg
§112
16.5%
-23.5% vs TC avg
Black line = Tech Center average estimate • Based on career data from 1491 resolved cases

Office Action

§103 §DP
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 . DETAILED ACTION All the references cited in the International Search Report have been considered. None is anticipatory. Election/Restrictions The applicant has elected Group I (claims 1-6) and the species of 1,2,6,7-tetramercapto-4-thiaheptane without traverse. This restriction is made FINAL. See previous action for the reasons of applying restriction. Claim Rejections - Double Patenting The nonstatutory double patenting rejection is based on a judicially created doctrine grounded in public policy (a policy reflected in the statute) so as to prevent the unjustified or improper timewise extension of the “right to exclude” granted by a patent and to prevent possible harassment by multiple assignees. A nonstatutory obviousness-type double patenting rejection is appropriate where the conflicting claims are not identical, but at least one examined application claim is not patentably distinct from the reference claim(s) because the examined application claim is either anticipated by, or would have been obvious over, the reference claim(s). See, e.g., In re Berg, 140 F.3d 1428, 46 USPQ2d 1226 (Fed. Cir. 1998); In re Goodman, 11 F.3d 1046, 29 USPQ2d 2010 (Fed. Cir. 1993); In re Longi, 759 F.2d 887, 225 USPQ 645 (Fed. Cir. 1985); In re Van Ornum, 686 F.2d 937, 214 USPQ 761 (CCPA 1982); In re Vogel, 422 F.2d 438, 164 USPQ 619 (CCPA 1970); and In re Thorington, 418 F.2d 528, 163 USPQ 644 (CCPA 1969). A timely filed terminal disclaimer in compliance with 37 CFR 1.321(c) or 1.321(d) may be used to overcome an actual or provisional rejection based on a nonstatutory double patenting ground provided the conflicting application or patent either is shown to be commonly owned with this application, or claims an invention made as a result of activities undertaken within the scope of a joint research agreement. Effective January 1, 1994, a registered attorney or agent of record may sign a terminal disclaimer. A terminal disclaimer signed by the assignee must fully comply with 37 CFR 3.73(b). Claim(s) 1-6 is (are) rejected on the ground of nonstatutory obviousness-type double patenting as being unpatentable over claims 1-4 and 8-9 of copending Application No. 18/030847. This is a provisional obviousness-type double patenting rejection because the conflicting claims have not in fact been patented. ‘847 (claims 1-4 and 8-9) meets instant claims 1-6, because it discloses a composition comprising a polythiol, such as 1,2,6,7-tetramercapto-4-thiaheptane (out of 12 candidates), and 20-80 wt% (meets the loading of claim 5) of PNG media_image1.png 200 400 media_image1.png Greyscale that meets the formulae of claims 1-4. One having ordinary skill in the art would obviously recognize to prepare the claimed composition by selecting 1,2,6,7-tetramercapto-4-thiaheptane as the polythiol, because although many compositions are disclosed in the reference and therefore anticipation does not appear to be present, it has been held that the mere fact that a reference suggests a multitude of possible combinations does not in and of itself make any one of these combination less obvious (Merck & Co. v. Biocraft Laboratories, 874 F.2d 804, 10 USPQ2d 1843 (Fed. Cir. 1989). 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 of this title, 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. Claim(s) 1-6 is (are) rejected under 35 U.S.C. 103 as being unpatentable over Omagawa et al. (US 20180127549). As to claims 1-6, Omagawa (abs., claims, examples) discloses a composition for producing plastic lens (1) having excellent light and heat resistance (117, 124) comprising a polythiol of 1,2,6,7-tetramercapto-4-thiaheptane (the elected species of claim 6) and bis(β-epithiopropyl)sulfide (Ex.13 and 17-19, Table 1) at about 56 wt% (meets the range of claim 5) of the total mass of the composition. Omagawa (26-34) discloses bis(β-epithiopropyl)sulfide and 1,3- and 1,4-bis(β-epithiopropylthio)benzene (both meet the formulae in claims 1-4) are functionally equivalent episulfide compounds for producing plastic lens (1) having excellent light and heat resistance. Therefore, it would have been obvious to one of ordinary skill in the art to have replaced phenol of bis(β-epithiopropyl)sulfide in Ex. 13 and 17-19 with 1,3- or 1,4-bis(β-epithiopropylthio)benzene because of their equivalent functionality as episulfide compounds for producing plastic lens having excellent light and heat resistance. These conditions appear to equally apply to both productions using similar phenoplast raw materials. This adaptation would have obviously yielded instantly claimed compositions of claims 1-6. Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to SHANE FANG whose telephone number is (571)270-7378. The examiner can normally be reached on Mon-Thurs. 8am-6pm. The fax phone number for the organization where this application or proceeding is assigned is 571-273-8300. If attempts to reach the examiner by telephone are unsuccessful, the examiner’s supervisor, Randy Gulakowski can be reached on 571.572.1302. Information regarding the status of an application may be obtained from the Patent Application Information Retrieval (PAIR) system. Status information for published applications may be obtained from either Private PAIR or Public PAIR. Status information for unpublished applications is available through Private PAIR only. For more information about the PAIR system, see http://pair-direct.uspto.gov. Should you have questions on access to the Private PAIR system, contact the Electronic Business Center (EBC) at 866-217-9197 (toll-free). If you would like assistance from a USPTO Customer Service Representative or access to the automated information system, call 800-786-9199 (IN USA OR CANADA) or 571-272-1000. /SHANE FANG/Primary Examiner, Art Unit 1766
Read full office action

Prosecution Timeline

Apr 07, 2023
Application Filed
Feb 02, 2026
Non-Final Rejection — §103, §DP (current)

Precedent Cases

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Study what changed to get past this examiner. Based on 5 most recent grants.

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Prosecution Projections

1-2
Expected OA Rounds
76%
Grant Probability
95%
With Interview (+19.0%)
2y 6m
Median Time to Grant
Low
PTA Risk
Based on 1491 resolved cases by this examiner. Grant probability derived from career allow rate.

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