Prosecution Insights
Last updated: July 17, 2026
Application No. 18/953,999

SYSTEMS AND METHODS FOR CROSS-LINKING TREATMENTS OF AN EYE

Non-Final OA §102
Filed
Nov 20, 2024
Priority
Feb 26, 2019 — provisional 62/810,509 +2 more
Examiner
HULBERT, AMANDA K
Art Unit
Tech Center
Assignee
Avedro Inc.
OA Round
1 (Non-Final)
84%
Grant Probability
Favorable
1-2
OA Rounds
1y 6m
Est. Remaining
88%
With Interview

Examiner Intelligence

Grants 84% — above average
84%
Career Allowance Rate
642 granted / 760 resolved
+24.5% vs TC avg
Minimal +4% lift
Without
With
+4.0%
Interview Lift
resolved cases with interview
Typical timeline
3y 1m
Avg Prosecution
34 currently pending
Career history
795
Total Applications
across all art units

Statute-Specific Performance

§101
1.6%
-38.4% vs TC avg
§103
67.5%
+27.5% vs TC avg
§102
12.9%
-27.1% vs TC avg
§112
10.7%
-29.3% vs TC avg
Black line = Tech Center average estimate • Based on career data from 760 resolved cases

Office Action

§102
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 . 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. (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. Claims 1-3, 5-6, 10-16 and 18 are rejected under 35 U.S.C. 102(a)(1) as being anticipated by Friedman (US 2016/0310319). Regarding claims 1 and 11-12, Friedman discloses a system and computer readable medium for corneal treatment for a subject comprising: an illumination system including a light source and optical elements, wherein the illumination system is configured to generate cross-linking in at least one selected region of a cornea treated with a cross-linking agent by delivering photoactivating light to the at least one selected region of the cornea according to one or more photoactivation parameters (claims 1, 14); and a controller configured to receive input relating to one or more treatment parameters including the one or more photoactivation parameters, wherein the controller is configured to execute program instructions stored on one or more non-transitory computer-readable storage media to output information for adjusting the one or more treatment parameters (claims 1, 14), wherein the program instructions include: a first set of program instructions that determines, from the input relating to the one or more treatment parameters, a distribution of cross-links for the at least one selected region of the cornea (claims 1, 14); a second set of program instructions the determines, from the distribution of cross-links, a shape change for the cornea ([0082]-[0084], claims 1, 14); and wherein, in response to the output from the controller, the illumination system is configured to adjust at least one of the one or more photoactivation parameters for delivering the photoactivating light (claims 1, 14) and wherein the controller determines the shape change for the cornea according to a biomechanical model, and at least one of a biochemical model or an optical model (e.g. finite element biomechanical computer model as disclosed in [0034] and claim 5; in combination with photochemical model of claim 14; [0034], [0079], [0080] and optical coherence tomography (OCT) of [0034] which can be considered an optical model). Regarding claim 2, Friedman additionally discloses a system wherein the one or more treatment parameters includes at least one of a soak time for the cross-linking agent, a pulse duration for the photoactivating light, an irradiance of the photoactivating light, a dose of the photoactivating light, an illumination pattern for the photoactivating light, or a concentration of oxygen applied to the cornea ( e.g. on/off duty cycle of the pulse light treatment, pulse rate frequency, irradiance and dose, as well as addition of oxidizers; [0048], [0049], [0051], [0057]), Regarding claims 3 and 15, Friedman additionally discloses a system wherein the second set of program instructions determines (i) a pre-treatment state of the cornea based on a pre-treatment shape and a pre-treatment intraocular pressure of the cornea, and (ii) the shape change for the cornea based on the pre-treatment state of the cornea and the distribution of cross-links (e.g. pre-and post treatment state of the cornea and modeling the refractive change; [0034], [0077], [0082]-[0084]). Regarding claim 5 and 14, Friedman additionally discloses a system further comprising an oxygen source and an oxygen delivery device configured to provide a concentration of oxygen from the oxygen source to the at least one selected region of the cornea, wherein the one or more treatment parameters further relates to the concentration of oxygen (e.g. oxygen source and oxygen delivery device of claim 2, wherein the treatment parameter relates to the concentration of oxygen; [0057], claim 2). Regarding claim 6, Friedman additionally teaches wherein the controller is further configured to calibrate the biomechanical model by calibrating, based on measured reference data, variable model parameters relating to the corneal elasticity and the stiffening associated with cross-links (e.g. photnokinetic model of claim 14; [0034], [0079], [0080], claims 5 and 14). Regarding claim 10 and 16, Friedman additionally discloses a system wherein the first set of program instructions determines the distribution of cross-links from (i) reactions involving reactive oxygen species (ROS) including at least singlet oxygen, peroxides, superoxides, and hydroxyl radicals, and (ii) reactions not involving oxygen (e.g. “The controller includes computer-readable storage media storing: (A) a first set of program instructions for determining, from the input, cross-linking resulting from reactions involving reactive oxygen species (ROS) including at least peroxides, superoxides, and hydroxyl radicals, and (B) a second set of program instructions for determining, from the input, cross-linking from reactions not involving oxygen”; [0024]) Regarding claim 13, Friedman additionally discloses a non-transitory computer-readable media wherein the one or more treatment parameters include one or more photoactivation parameters, and the computer-executable instructions further cause the controller to cause an adjustment to at least one of the one or more photoactivation parameters for an illumination system, the illumination system configured to generate the cross-linking in the at least one selected region of the cornea by delivering photoactivating light to the at least one selected region of the cornea according to the one or more photoactivation parameters (e.g. adjustment of photoactivation, [0033], also [0048], [0049], [0051], [0057]). Regarding claim 18, Friedman additionally discloses a non-transitory computer-readable media wherein the controller determines the shape change for the cornea according to a biomechanical model that models corneal elasticity and a stiffening associated with cross-links (e.g. models as taught in [0034], [0079], [0080], claims 5, 14). Allowable Subject Matter Claims 4, 7-9, 17, and 19-20 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 Any inquiry concerning this communication or earlier communications from the examiner should be directed to Amanda K Hulbert whose telephone number is (571)270-1912. The examiner can normally be reached Monday - Friday 9:00-5:00. 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, Unsu Jung can be reached on 571-272-8506. 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. /Amanda K Hulbert/ Primary Examiner, Art Unit 3792
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Prosecution Timeline

Nov 20, 2024
Application Filed
Jun 23, 2026
Non-Final Rejection mailed — §102 (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
84%
Grant Probability
88%
With Interview (+4.0%)
3y 1m (~1y 6m remaining)
Median Time to Grant
Low
PTA Risk
Based on 760 resolved cases by this examiner. Grant probability derived from career allowance rate.

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