Prosecution Insights
Last updated: April 19, 2026
Application No. 18/295,074

METHODS, SYSTEMS, AND COMPOSITIONS FOR MAINTAINING FUNCTIONING DRAINAGE BLEBS ASSOCIATED WITH FOREIGN BODIES

Non-Final OA §DP
Filed
Apr 03, 2023
Examiner
LANNU, JOSHUA DARYL DEANON
Art Unit
3791
Tech Center
3700 — Mechanical Engineering & Manufacturing
Assignee
Radiance Therapeutics Inc.
OA Round
1 (Non-Final)
82%
Grant Probability
Favorable
1-2
OA Rounds
2y 11m
To Grant
99%
With Interview

Examiner Intelligence

Grants 82% — above average
82%
Career Allow Rate
761 granted / 924 resolved
+12.4% vs TC avg
Strong +24% interview lift
Without
With
+23.9%
Interview Lift
resolved cases with interview
Typical timeline
2y 11m
Avg Prosecution
45 currently pending
Career history
969
Total Applications
across all art units

Statute-Specific Performance

§101
9.8%
-30.2% vs TC avg
§103
28.1%
-11.9% vs TC avg
§102
22.5%
-17.5% vs TC avg
§112
32.3%
-7.7% vs TC avg
Black line = Tech Center average estimate • Based on career data from 924 resolved cases

Office Action

§DP
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 . Information Disclosure Statement The information disclosure statement (IDS) submitted on 6/30/2023, 11/14/2023, 5/7/2024, and 8/8/2024 are being considered by the examiner. Specification The lengthy specification has not been checked to the extent necessary to determine the presence of all possible minor errors. Applicant’s cooperation is requested in correcting any errors of which applicant may become aware in the specification. 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 1-6 are rejected on the ground of nonstatutory double patenting as being unpatentable over claims 1, 4, 5, 8, 11, and 12 of U.S. Patent No. US 11,628,310 in view of US 2011/0071458 (Rickard). The mapping of the claims are as follows. Claim 1 maps to claim 1 of US 11,628,310. Claim 2 maps to claim 4 of US 11,628,310. Claim 3 maps to claim 5 of US 11,628,310. Claim 4 maps to claim 8 of US 11,628,310. Claim 5 maps to claim 11 of US 11,628,310. Claim 6 maps to claim 12 of US 11,628,310. US 11,628,310 meets the limitations of the claims except for the implant being “flow-controlled”. In a related area, Rickard discloses a glaucoma drainage pump (title and abstract) and states that valves are used in an implant to control flow of aqueous from the anterior chamber and that it is used to control pressure in the anterior chamber to prevent complications like hypotony (paragraphs 56-59). Thus, it would have been obvious to one of ordinary skill in the art before the filing date of the claimed invention to modify US 11,628,310 to have the implants have valves as taught by Rickard in order to control pressures within the eye and prevent complications such as hypotony. Conclusion The examiner notes that, though no art has been applied against claims 1-6 at this time, they are not presently allowable. The question of prior art will be revisited upon resolution of the numerous issues noted above. The prior art made of record and not relied upon is considered pertinent to applicant's disclosure. US 2009/0124955 (Ayyala). KIRWAN et al. "Beta irradiation: new uses for an old treatment: a review." Eye 17.2 (2003): 207-215. ASSMANN et al. "Biodegradable radioactive implants for glaucoma filtering surgery produced by ion implantation.” Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms 267 .1-2 (2007): 108-113. KIRWAN et al. "Effect of B radiation on success of glaucoma drainage surgery in South Africa: randomised controlled trial". BMJ (published 5 October 2006). The applied prior art discloses the radioactive implants used in glaucoma surgery but fail to provide the specifics in the present claims. Any inquiry concerning this communication or earlier communications from the examiner should be directed to JOSHUA DARYL DEANON LANNU whose telephone number is (571)270-1986. The examiner can normally be reached Monday-Thursday 8 AM - 5 PM, Friday 8 AM -12 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, Charles Marmor can be reached at (571) 272-4730. 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. /JOSHUA DARYL D LANNU/Examiner, Art Unit 3791 /CARRIE R DORNA/Primary Examiner, Art Unit 3791
Read full office action

Prosecution Timeline

Apr 03, 2023
Application Filed
Jan 13, 2026
Non-Final Rejection — §DP (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
82%
Grant Probability
99%
With Interview (+23.9%)
2y 11m
Median Time to Grant
Low
PTA Risk
Based on 924 resolved cases by this examiner. Grant probability derived from career allow rate.

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