Prosecution Insights
Last updated: October 25, 2026
Application No. 18/482,417

PHOTO-SWITCHABLE CHEMISTRY FOR REVERSIBLE HYDROGELS AND REUSABLE FLOW CELLS

Non-Final OA §102§DOUBLEPATENT
Filed
Oct 06, 2023
Priority
Oct 10, 2022 — provisional 63/378,943
Examiner
ROSWELL, JESSICA MARIE
Art Unit
1767
Tech Center
1700 — Chemical & Materials Engineering
Assignee
Illumina Inc.
OA Round
1 (Non-Final)
52%
Grant Probability
Moderate
1-2
OA Rounds
5m
Est. Remaining
88%
With Interview

Examiner Intelligence

Grants 52% of resolved cases
52%
Career Allowance Rate
417 granted / 800 resolved
-12.9% vs TC avg
Strong +36% interview lift
Without
With
+36.4%
Interview Lift
resolved cases with interview
Typical timeline
3y 6m
Avg Prosecution
38 currently pending
Career history
862
Total Applications
across all art units

Statute-Specific Performance

§101
1.0%
-39.0% vs TC avg
§103
55.7%
+15.7% vs TC avg
§102
15.2%
-24.8% vs TC avg
§112
17.0%
-23.0% vs TC avg
Black line = Tech Center average estimate • Based on career data from 800 resolved cases

Office Action

§102 §DOUBLEPATENT
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 species C, claims 1-5 and 13-29 in the reply filed on 06 July 2026 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 Claims 6-12 are withdrawn from further consideration pursuant to 37 CFR 1.142(b) as being drawn to a nonelected invention, there being no allowable generic or linking claim.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 06 July 2026. Claim Rejections - 35 USC § 102 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. 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. Claim(s) 1-3, 5, and 26-29 is/are rejected under 35 U.S.C. 102(a)(1) as being anticipated by Yang et al. (“Click” functionalization of dual stimuli-responsive polymer nanocapsules for drug delivery systems” Polym. Chem (2017) 8 (20): 3056-3065). Regarding claims 1-2, 5, and 26; Yang et al. teaches a hydrogel polymer nanocapsules (nanogel particles) prepared from the monomers below [p3056; 3059]: PNG media_image1.png 258 505 media_image1.png Greyscale wherein the propargyl methacrylate reads on instant Formula (I) and acrylic acid reads on instant Formula (II). Regarding claim 3; the limitations of the claim merely define optional limitations with respect to Formula (III), wherein Formula (III) is not explicitly required by the claim language. Regarding claim 27-28; Yang et al. teaches the process of making said polymer hydrogel by using alkyne-azide click chemistry [p3061]. Regarding claim 29; the limitations of the claim are directed to product-by-process limitations. The examiner notes that even though product-by-process claims are limited by and defined by the process, determination of patentability is based on the product itself. The patentability of a product does not depend on its method of production. If the product in the product-by-process claim is the same as or obvious from a product of the prior art, the claim is unpatentable even though the prior product was made by a different process.” See In re Thorpe, 777 F.2d 695, 698, 227 USPQ 964, 966 (Fed. Cir. 1985) ); see MPEP §2113. Claim(s) 1-5 and 27-29 is/are rejected under 35 U.S.C. 102(a)(1) as being anticipated by Ren et al. (US Patent No. 10919033). PNG media_image2.png 258 242 media_image2.png Greyscale Regarding claims 1, 2, 4, and 5; Ren et al. teaches an acrylamide copolymer, such as poly(N-(5-azidoacetamidylpentyl)acrylamide-co-acrylamide, represented by the following formula (I) [col11, line4-40]. Regarding claim 3; the limitations of the claim merely define optional limitations with respect to Formula (III), wherein Formula (III) is not explicitly required by the claim language. Regarding claims 27-28; Ren et al. teaches the hydrogel further comprise amplification primers [col13, line20-30]; wherein the primers include azide compounds [col5, lines63-67]. Regarding claim 29; the limitations of the claim are directed to product-by-process limitations. The examiner notes that even though product-by-process claims are limited by and defined by the process, determination of patentability is based on the product itself. The patentability of a product does not depend on its method of production. If the product in the product-by-process claim is the same as or obvious from a product of the prior art, the claim is unpatentable even though the prior product was made by a different process.” See In re Thorpe, 777 F.2d 695, 698, 227 USPQ 964, 966 (Fed. Cir. 1985) ); see MPEP §2113. 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 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); 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 nonstatutory double patenting provided the reference application or patent either is shown to be commonly owned with the examined application, or claims an invention made as a result of activities undertaken within the scope of a joint research agreement. See MPEP § 717.02 for applications subject to examination under the first inventor to file provisions of the AIA as explained in MPEP § 2159. See MPEP § 2146 et seq. for applications not subject to examination under the first inventor to file provisions of the AIA . A terminal disclaimer must be signed in compliance with 37 CFR 1.321(b). The filing of a terminal disclaimer by itself is not a complete reply to a nonstatutory double patenting (NSDP) rejection. A complete reply requires that the terminal disclaimer be accompanied by a reply requesting reconsideration of the prior Office action. Even where the NSDP rejection is provisional the reply must be complete. See MPEP § 804, subsection I.B.1. For a reply to a non-final Office action, see 37 CFR 1.111(a). For a reply to final Office action, see 37 CFR 1.113(c). A request for reconsideration while not provided for in 37 CFR 1.113(c) may be filed after final for consideration. See MPEP §§ 706.07(e) and 714.13. The USPTO Internet website contains terminal disclaimer forms which may be used. Please visit www.uspto.gov/patent/patents-forms. The actual filing date of the application in which the form is filed determines what form (e.g., PTO/SB/25, PTO/SB/26, PTO/AIA /25, or PTO/AIA /26) should be used. A web-based eTerminal Disclaimer may be filled out completely online using web-screens. An eTerminal Disclaimer that meets all requirements is auto-processed and approved immediately upon submission. For more information about eTerminal Disclaimers, refer to www.uspto.gov/patents/apply/applying-online/eterminal-disclaimer. Claims 1-5 and 25 are provisionally rejected on the ground of nonstatutory double patenting as being unpatentable over claims 1-6, 8 and 10 of copending Application No. 18/469440 (reference application). Although the claims at issue are not identical, they are not patentably distinct from each other because they are both directed to the same art specific subject matter, namely a hydrogel polymer comprising a first recurring unit of Formula (I) and a second recurring unit of Formula (II). All the elements of the instant application are found obvious in view of the copending application, but in varying embodiments. A reference may be relied upon for all that it would have reasonably suggested to one having ordinary skill the art, including the non-preferred embodiments. Merck & Co. v. Biocraft Laboratories, 874 F.2d 804, 10 USPQ2d 1843 (Fed. Cir.); see MPEP §2123. This is a provisional nonstatutory double patenting rejection because the patentably indistinct claims have not in fact been patented. Allowable Subject Matter Claims 13-25 are 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. Conclusion The prior art made of record and not relied upon is considered pertinent to applicant's disclosure. Du et al. (CN 109620965) teaches an amphiphilic temperature-sensitive block polymer is polyoxyethylene-block-poly(N-isopropylacrylamide-random-methylcoumarin hydroxyethyl methacrylate-block-polyacrylic acid [claim 1]. Du et al. does not teach the polymer as required by instant claim 1. Correspondence Any inquiry concerning this communication or earlier communications from the examiner should be directed to JESSICA ROSWELL whose telephone number is (571)270-5453. The examiner can normally be reached M-F 8:00 am to 5:00 pm. 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. /JESSICA M ROSWELL/ Primary Examiner, Art Unit 1767
Read full office action

Prosecution Timeline

Oct 06, 2023
Application Filed
Oct 08, 2026
Non-Final Rejection mailed — §102, §DOUBLEPATENT (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12735523
PRECURSOR COMPOSITION FOR ACRYLIC THERMOPLASTIC COMPOSITES AND ITS METHOD OF PREPARATION AND USE
6y 0m to grant Granted Sep 15, 2026
Patent 12735607
METHOD TO IMPROVE TOUGHNESS OF ADHESIVELY BONDED COMPOSITE JOINTS
4y 2m to grant Granted Sep 15, 2026
Patent 12735521
SULFATE-CONTAINING OR PHOSPHATE-CONTAINING, SELF-ADHESIVE DENTAL COMPOSITE CEMENT WITH GOOD TRANSPARENCY
3y 8m to grant Granted Sep 15, 2026
Patent 12729260
Hybrid Resins For High Voltage Applications
5y 5m to grant Granted Sep 08, 2026
Patent 12729303
CURABLE POLYURETHANE BASED RESIN FOR USE IN ADDITIVE MANUFACTURING
4y 9m to grant Granted Sep 08, 2026
Study what changed to get past this examiner. Based on 5 most recent grants.

Strategy Recommendation AI-generated — please review before filing

Get a prosecution strategy drawn from examiner precedents, rejection analysis, and claim mapping.
Typically takes 5-10 seconds — AI-generated, attorney review required before filing

Prosecution Projections

1-2
Expected OA Rounds
52%
Grant Probability
88%
With Interview (+36.4%)
3y 6m (~5m remaining)
Median Time to Grant
Low
PTA Risk
Based on 800 resolved cases by this examiner. Grant probability derived from career allowance 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