Prosecution Insights
Last updated: October 04, 2026
Application No. 18/562,590

BIOSTABLE POLYMER BRUSHES WITH DEFINED VISCOSITY AND OPTICAL PROPERTIES FOR USE IN A NOVEL INTRAOCULAR LENS

Non-Final OA §103
Filed
Nov 20, 2023
Priority
May 20, 2021 — provisional 63/191,018 +1 more
Examiner
WHITELEY, JESSICA
Art Unit
3774
Tech Center
3700 — Mechanical Engineering & Manufacturing
Assignee
Adaptilens LLC
OA Round
1 (Non-Final)
89%
Grant Probability
Favorable
1-2
OA Rounds
0m
Est. Remaining
96%
With Interview

Examiner Intelligence

Grants 89% — above average
89%
Career Allowance Rate
1359 granted / 1533 resolved
+18.6% vs TC avg
Moderate +7% lift
Without
With
+7.0%
Interview Lift
resolved cases with interview
Fast prosecutor
1y 11m
Avg Prosecution
30 currently pending
Career history
1560
Total Applications
across all art units

Statute-Specific Performance

§101
1.5%
-38.5% vs TC avg
§103
33.4%
-6.6% vs TC avg
§102
34.0%
-6.0% vs TC avg
§112
18.4%
-21.6% vs TC avg
Black line = Tech Center average estimate • Based on career data from 1533 resolved cases

Office Action

§103
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 without traverse of Group III, claims 28, 34-36, 38, and 40-44 in the reply filed on July 13, 2026 is acknowledged. 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, 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. Claims 28, 34-36, 38, and 40-44 are rejected under 35 U.S.C. 103 as being unpatentable over Kearns et al (US 2019/0175497) in view of Flanders et al (2018, Polym. Chem., 9, 2328-2335). With regards to claims 28, 34-36, 38, and 40-44, Kearns teaches ophthalmic compositions (title) that contains a comb polymer having the following structure: PNG media_image1.png 291 214 media_image1.png Greyscale (0099). Kearns does not teach the exact polymer used in the lens. Flanders teaches the following bottlebrush block polymers (page 2328) that has the following structure: PNG media_image2.png 82 189 media_image2.png Greyscale (page 2329) wherein R is the following: PNG media_image3.png 79 310 media_image3.png Greyscale (page 2329). Flanders teaches the motivation for using this polymer to be because the polymer can depolymerize to the monomer’s inherent equilibrium monomer concentration without adding radical initiator and without the RAFT CTA degrading (page 2334). Kearns and Flanders are analogous in the art of comb/brush polymers. In light of the benefit above, it would have been obvious to one skilled in the art prior to the effective filing date of the present invention to use the polymer of Flanders in the composition of Kearns, thereby obtaining the present invention. Kearns and Flanders are silent on the refractive index and complex viscosity of the polymer composition. However, where the general conditions of a claim are disclosed in the prior art, it is not inventive to discover the optimum or workable ranges by routine experimentation. In re Aller, 220 F.2d 454, 456, 105 USPQ 233, 124 (CCPA 1955). In this case, one skilled in the art prior to the effective filing date of the present invention would know to alter the refractive index in order to match the eye’s optical system in order to minimize aberrations and restore clear vision and to alter the complex viscosity of the composition in order to optimize both drug delivery and patient comfort. Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to JESSICA WHITELEY whose telephone number is (571)272-5203. The examiner can normally be reached 8 - 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, Joseph Del Sole can be reached at 5712721130. 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. /JESSICA WHITELEY/Primary Examiner, Art Unit 1763
Read full office action

Prosecution Timeline

Nov 20, 2023
Application Filed
Sep 17, 2026
Non-Final Rejection mailed — §103 (current)

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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
89%
Grant Probability
96%
With Interview (+7.0%)
1y 11m (~0m remaining)
Median Time to Grant
Low
PTA Risk
Based on 1533 resolved cases by this examiner. Grant probability derived from career allowance rate.

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