Prosecution Insights
Last updated: July 17, 2026
Application No. 18/852,150

DEVICE AND METHOD FOR DETERMINING A SHIFT IN A REFRACTION VALUE OF AN EYE OF A SUBJECT INDUCED BY AN OPTICAL FILTER

Non-Final OA §112
Filed
Sep 27, 2024
Priority
Mar 31, 2022 — EU 22305423.0 +1 more
Examiner
PICHLER, MARIN
Art Unit
Tech Center
Assignee
Essilor International
OA Round
1 (Non-Final)
63%
Grant Probability
Moderate
1-2
OA Rounds
1y 2m
Est. Remaining
72%
With Interview

Examiner Intelligence

Grants 63% of resolved cases
63%
Career Allowance Rate
429 granted / 677 resolved
+3.4% vs TC avg
Moderate +9% lift
Without
With
+8.8%
Interview Lift
resolved cases with interview
Typical timeline
3y 0m
Avg Prosecution
54 currently pending
Career history
720
Total Applications
across all art units

Statute-Specific Performance

§103
78.3%
+38.3% vs TC avg
§102
16.7%
-23.3% vs TC avg
§112
4.2%
-35.8% vs TC avg
Black line = Tech Center average estimate • Based on career data from 677 resolved cases

Office Action

§112
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 The instant application having Application No. 18852150 filed on 09/27/2024 is presented for examination by the examiner. Examiner Notes Examiner cites particular columns and line numbers in the references as applied to the claims below for the convenience of the applicant. Although the specified citations are representative of the teachings in the art and are applied to the specific limitations within the individual claim, other passages and figures may apply as well. It is respectfully requested that, in preparing responses, the applicant fully consider the references in entirety as potentially teaching all or part of the claimed invention, as well as the context of the passage as taught by the prior art or disclosed by the examiner. Priority As required by e M.P.E.P. 210, 214.03, acknowledgement is made of applicant’s claim for priority based on application of National Stage entry of PCT/EP2023/058358, with international filing date of 03/30/2023 that claims foreign priority to EP 22305423.0, filed on 03/31/2022 (Europe). Receipt is acknowledged of papers submitted under 35 U.S.C. 119(a)-(d), which papers have been placed of record in the file. Drawings The applicant’s drawings submitted are acceptable for examination purposes. Claim Rejections - 35 USC § 112 The following is a quotation of 35 U.S.C. 112(b): (b) CONCLUSION.—The specification shall conclude with one or more claims particularly pointing out and distinctly claiming the subject matter which the inventor or a joint inventor regards as the invention. The following is a quotation of 35 U.S.C. 112 (pre-AIA ), second paragraph: The specification shall conclude with one or more claims particularly pointing out and distinctly claiming the subject matter which the applicant regards as his invention. Claim 16 is rejected under 35 U.S.C. 112(b) or 35 U.S.C. 112 (pre-AIA ), second paragraph, as being indefinite for failing to particularly point out and distinctly claim the subject matter which the inventor or a joint inventor (or for applications subject to pre-AIA 35 U.S.C. 112, the applicant), regards as the invention. Claim 16 recites the limitation "said device" in line 5. There is insufficient antecedent basis for this limitation in the claim. Specifically it is unclear as to what specific device does this limitation refer to, given that no “device” was recited in the method claim 16? It is suggested to amend the claim and provide explanations in order to remove the indefiniteness issue. Allowable Subject Matter Claims 1-15 allowed. Reasons for Allowable Subject Matter The following is an examiner’s statement of reasons for allowance: The prior art taken either singly or in combination fails to anticipate or fairly suggest the limitations of the independent claims, in such a manner that a rejection under 35 USC 102 or 103 would be improper. Dubail et al. (hereafter Dubail, of record, see IDS dated 09/27/2024) US 20200315448 A1. In regard to independent claim 1, directed towards a device for determining a shift in a refraction value of an eye of a subject lighted by a light beam emitted by a light source, the closest prior art of Dubail et al. (hereafter Dubail, of record, see IDS dated 09/27/2024) US 20200315448 A1, teaches (see Figs. 1-8) a device for determining a shift in a refraction value of an eye of a subject lighted by a light beam emitted by a light source (i.e. as system 10,20,30 and method determining refraction, defocusing, of eye(s) of a person under specific spectral conditions, and refraction defocus, abstract, paragraphs [02-04,08-39, 66-81, 94-102, 104-126, 132-146,149-159,162-170]) said shift being induced by an optical filter (i.e. chromatic filter, e.g. 8, paragraphs [79-84, 134, 147,160-165]) through which said light beam is transmitted to the eye of the subject (eye 2, of person, paragraphs [79-84, 134, 147,160-165]), said device (system and associated method) comprising; one or more memories, and one or more processors (i.e. as system for determining eye refraction includes memory and processor(s) programmed to collect and process data and perform calculations for obtaining and using the spectral-refraction model(s) e.g. paragraphs [66-81, 94-102, 104-126, 132-146,149-159,162-170]), wherein: said one or more memories store: one or more values of one or more initial spectral features of said light source (i.e. specific spectral condition of light source 4 (6), spectrum , light intensity, see paragraphs [66-81, 94-102, 104-126]),one or more values of one or more optical features of said optical filter (i.e. specific spectral conditions of filter 8, e.g. transmission spectrum, see paragraphs [66-81, 94-102, 104-126]), and a refraction shift model linking said shift and one or more spectral features of the light beam transmitted to the eye of the subject (i.e. as spectral-refraction model linking spectral refraction to specific spectral conditions and spectral parameter i.e. spectrum or light intensity, e.g. paragraphs [66-81, 94-102, 104-126, also 132-146, 162-170], Figs. 2,3,4); and wherein said one or more processors are programmed (i.e. system programmed), to perform the following steps: determining one or more values of one or more spectral features of said light beam transmitted to the eye of the subject through said optical filter based on said one or more values of one or more initial spectral features of said light source and said one or more values of one or more optical features of said optical filter (i.e. as determined specific spectral conditions and spectral parameters of light source 4 (6), and spectral parameters, transmission spectra of chromatic filter 8, paragraphs [66-81, 94-102, 104-126, 132-146, 162-170]); and determining said shift in the refraction of the eye (2) of the subject (person) based on said refraction shift model and said values of the spectral features of said light beam transmitted to the eye of the subject through the optical filter (i.e. determining refraction, defocusing of eye based on spectral-refraction model linking spectral refraction to specific spectral conditions and spectral parameter i.e. spectrum or light intensity, e.g. paragraphs [66-81, 94-102, 104-126, also 132-146, 162-170], Figs. 3-4,6). However, regarding claim 1, the prior art of Dubail taken either singly or in combination with any other prior art fails to anticipate or fairly suggest such a device for determining a shift in a refraction value of an eye of a subject lighted by a light beam emitted by a light source including the specific arrangement where refraction shift model linking a magnitude associated with said shift and one or more spectral features of the light beam transmitted to the eye of the subject, and in combination with all other claimed limitations of claim 1. With respect to claims 2-15, these claims depend on claim 1 and are allowable at least for the reasons stated supra. Claim 16 would be allowable if rewritten or amended to overcome the rejection(s) under 35 U.S.C. 112(b) or 35 U.S.C. 112 (pre-AIA ), 2nd paragraph, set forth in this Office action. Conclusion The prior art made of record and not relied upon is considered pertinent to applicant's disclosure. Bonnin et al. US 20160154255 A1 (see Figs. 1-3 and their descriptions), and Barrau US 20190094135 A1 (see Figs. 1-5 and their descriptions) also describe features relative to the invention. Any inquiry concerning this communication or earlier communications from the examiner should be directed to MARIN PICHLER whose telephone number is (571)272-4015. The examiner can normally be reached Monday-Friday 8:30am -5:00pm. 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, Thomas K Pham can be reached at (571)272-3689. 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. /MARIN PICHLER/Primary Examiner, Art Unit 2872
Read full office action

Prosecution Timeline

Sep 27, 2024
Application Filed
Jun 10, 2026
Non-Final Rejection mailed — §112 (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
63%
Grant Probability
72%
With Interview (+8.8%)
3y 0m (~1y 2m remaining)
Median Time to Grant
Low
PTA Risk
Based on 677 resolved cases by this examiner. Grant probability derived from career allowance rate.

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