Prosecution Insights
Last updated: April 19, 2026
Application No. 18/640,760

OPTICAL ARTICLE WITH A HOLOGRAPHIC WAVEGUIDE

Non-Final OA §103
Filed
Apr 19, 2024
Examiner
CHANG, AUDREY Y
Art Unit
2872
Tech Center
2800 — Semiconductors & Electrical Systems
Assignee
Essilor International
OA Round
1 (Non-Final)
47%
Grant Probability
Moderate
1-2
OA Rounds
3y 4m
To Grant
68%
With Interview

Examiner Intelligence

Grants 47% of resolved cases
47%
Career Allow Rate
585 granted / 1249 resolved
-21.2% vs TC avg
Strong +21% interview lift
Without
With
+20.9%
Interview Lift
resolved cases with interview
Typical timeline
3y 4m
Avg Prosecution
60 currently pending
Career history
1309
Total Applications
across all art units

Statute-Specific Performance

§101
0.4%
-39.6% vs TC avg
§103
48.9%
+8.9% vs TC avg
§102
11.0%
-29.0% vs TC avg
§112
33.7%
-6.3% vs TC avg
Black line = Tech Center average estimate • Based on career data from 1249 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 . Claim Rejections - 35 USC § 103 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 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. Claim(s) 1 is/are rejected under 35 U.S.C. 103 as being unpatentable over the patent issued to Fujimoto (PN. 6,222,641). Fujimoto teaches, with regard to claim 1, a holographic system (20, Figures 2, 3, 10A and 10B), that is comprised of a photosensitive film, serves as the holographic waveguide, wherein the holographic waveguide (20) is comprised of two main surfaces. Fujimoto teaches that the holographic waveguide with the photosensitive film comprises a first zone with a first volume phase hologram superimposed on the single layer of the photosensitive film (20, Figure 2) and a second zone with a second volume phase hologram superimposed on the single layer of the photosensitive film, (please see Figure 3). Fujimoto teaches that light incoming on one of the first zone and second zone of the holographic waveguide is at least partially guided toward the other of the first and second zones, (please see Figures 10A and 10B). In a different embodiment, Fujimoto teaches that the holographic waveguide (20) may be provided to cover at least part of a substrate (110, Figures 12A and 12B) with at least one of the main surface of the holographic waveguide is conformed to a surface of the substrate (110). It would then have been obvious to one skilled in the art to apply the teachings to modify the holographic waveguide to be provided with a substrate for the benefit of allowing the combined holographic waveguide and the substrate to form an optical article that may be suitable for different application requirements. Any inquiry concerning this communication or earlier communications from the examiner should be directed to AUDREY Y CHANG whose telephone number is (571)272-2309. The examiner can normally be reached M-TH 9:00AM-4:30PM. 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, Stephone B Allen can be reached at 571-272-2434. 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. AUDREY Y. CHANG Primary Examiner Art Unit 2872 /AUDREY Y CHANG/ Primary Examiner, Art Unit 2872
Read full office action

Prosecution Timeline

Apr 19, 2024
Application Filed
Jan 27, 2026
Non-Final Rejection — §103 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12601917
GLASSES-TYPE AUGMENTED REALITY APPARATUS AND SYSTEM WITH COMPACT DIMENSIONS
2y 5m to grant Granted Apr 14, 2026
Patent 12585134
DISPLAY MODULE WITH THE DIVERGENCE ANGLE OF OUTGOING BEAM CONSTRAINED AGAIN BY THE CORRESPONDING DEFLECTION APERTURE
2y 5m to grant Granted Mar 24, 2026
Patent 12560814
HOLOGRAPHIC DISPLAY
2y 5m to grant Granted Feb 24, 2026
Patent 12546912
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2y 5m to grant Granted Feb 10, 2026
Patent 12541117
THREE-DIMENSIONAL CONVERSION MEMBER AND STEREOSCOPIC IMAGE DISPLAY DEVICE INCLUDING THE SAME
2y 5m to grant Granted Feb 03, 2026
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
47%
Grant Probability
68%
With Interview (+20.9%)
3y 4m
Median Time to Grant
Low
PTA Risk
Based on 1249 resolved cases by this examiner. Grant probability derived from career allow rate.

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