Prosecution Insights
Last updated: April 19, 2026
Application No. 18/610,315

OPTICAL FILTER

Non-Final OA §102
Filed
Mar 20, 2024
Examiner
WASHINGTON, TAMARA Y
Art Unit
2872
Tech Center
2800 — Semiconductors & Electrical Systems
Assignee
Seiko Epson Corporation
OA Round
1 (Non-Final)
81%
Grant Probability
Favorable
1-2
OA Rounds
2y 9m
To Grant
89%
With Interview

Examiner Intelligence

Grants 81% — above average
81%
Career Allow Rate
464 granted / 571 resolved
+13.3% vs TC avg
Moderate +8% lift
Without
With
+8.0%
Interview Lift
resolved cases with interview
Typical timeline
2y 9m
Avg Prosecution
52 currently pending
Career history
623
Total Applications
across all art units

Statute-Specific Performance

§101
0.8%
-39.2% vs TC avg
§103
41.7%
+1.7% vs TC avg
§102
29.7%
-10.3% vs TC avg
§112
17.6%
-22.4% vs TC avg
Black line = Tech Center average estimate • Based on career data from 571 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 . Priority Receipt is acknowledged of certified copies of papers required by 37 CFR 1.55. Information Disclosure Statement Acknowledgement is made of receipt of Information Disclosure Statement(s) (PTO-1449) filed 03/20/2024. An initialed copy is attached to this Office Action. Claim Rejections - 35 USC § 102 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)(2) the claimed invention was described in a patent issued under section 151, or in an application for patent published or deemed published under section 122(b), in which the patent or application, as the case may be, names another inventor and was effectively filed before the effective filing date of the claimed invention. The applied reference has a common assignee with the instant application. Based upon the earlier effectively filed date of the reference, it constitutes prior art under 35 U.S.C. 102(a)(2). This rejection under 35 U.S.C. 102(a)(2) might be overcome by: (1) a showing under 37 CFR 1.130(a) that the subject matter disclosed in the reference was obtained directly or indirectly from the inventor or a joint inventor of this application and is thus not prior art in accordance with 35 U.S.C. 102(b)(2)(A); (2) a showing under 37 CFR 1.130(b) of a prior public disclosure under 35 U.S.C. 102(b)(2)(B) if the same invention is not being claimed; or (3) a statement pursuant to 35 U.S.C. 102(b)(2)(C) establishing that, not later than the effective filing date of the claimed invention, the subject matter disclosed in the reference and the claimed invention were either owned by the same person or subject to an obligation of assignment to the same person or subject to a joint research agreement. Claim(s) 1-10 is/are rejected under 35 U.S.C. 102(a)(2) as being anticipated by Sano (US 2014/0268345 A1). With respect to Claim 1, Sano discloses an optical filter comprising: a first reflection film (54, Figure 5); and a second reflection film (55, Figure 5) placed to face the first reflection film (54, Figure 5) via a gap (G1, Figure 5), wherein as seen from a direction (optical axis O, direction, Figure 5) in which the first reflection film (54, Figure 5) and the second reflection film (55, Figure 5) face, a range in which the first reflection film (54, Figure 5) and the second reflection film (55, Figure 5) overlap forms a light transmission region (591 and 593, Figure 5), and a dimension (¶[0149) of the gap (G1, Figure 5) in a center portion (center of 591 and 593, Figure 5) of the light transmission region (591 and 593, Figure 5) is smaller than a dimension (¶[0149) of the gap (G1, Figure 5) in an outer peripheral portion (outside of 591 and 593, Figure 5) outside of the center portion (center of 591 and 593, Figure 5) within the light transmission region (591 and 593, Figure 5). With respect to Claim 2, Sano further discloses: a first substrate (51, Figure 5) on which the first reflection film (54, Figure 5) is provided; a second substrate (52, Figure 5) placed to face the first substrate (51, Figure 5), on which the second reflection film (55, Figure 5) is provided; and a first stress film (one of 59, Figure 5) provided on the first substrate (51, Figure 5), wherein the first stress film (one of 59, Figure 5) applies a stress to the first substrate (51, Figure 5) to deform the first reflection film (54, Figure 5) toward the second reflection film (55, Figure 5) side. With respect to Claim 3, Sano further discloses wherein the first substrate (51, Figure 5) includes a first surface (51 facing 52, Figure 5) facing the second substrate (52, Figure 5) and a second surface (51 facing away from 52, Figure 5) at an opposite side to the first surface (51 facing 52, Figure 5), and the first stress film (one of 59, Figure 5) is a compressive stress film provided between the first surface of the first substrate (51, Figure 5) and the first reflection film (54, Figure 5) or a tensile stress film provided on the second surface of the first substrate (51, Figure 5). With respect to Claim 4, Sano further discloses further comprising a second stress film (second of 59, Figure 5) provided on the second substrate (52, Figure 5), wherein the second stress film (second of 59, Figure 5) applies a stress to the second substrate (52, Figure 5) to deform the second reflection film (55, Figure 5) toward the first reflection film (54, Figure 5) side. With respect to Claim 5, Sano further discloses wherein the second substrate (52, Figure 5) includes a first surface facing the first substrate (51, Figure 5) and a second surface at an opposite side to the first surface, and the second stress film (second of 59, Figure 5) is a compressive stress film provided between the first surface of the second substrate (52, Figure 5) and the second reflection film (55, Figure 5) or a tensile stress film provided on the second surface of the second substrate (52, Figure 5). With respect to Claim 6, Sano further discloses wherein the second reflection film (55, Figure 5) is deformed to an opposite side to the first substrate (51, Figure 5) side, and an amount of deformation of the first reflection film (54, Figure 5) is larger than an amount of deformation of the second reflection film (55, Figure 5). With respect to Claim 7, Sano further discloses wherein at least a part of the first stress film (one of 59, Figure 5) is placed to overlap with the light transmission region (591 and 593, Figure 5) as seen from the direction (optical axis O, direction, Figure 5) in which the first reflection film (54, Figure 5) and the second reflection film (55, Figure 5) face. With respect to Claim 8, Sano further discloses wherein a center portion (center of one of 59, Figure 5) of the first stress film (one of 59, Figure 5) coincides with the center portion (center of 591 and 593, Figure 5) of the light transmission region (591 and 593, Figure 5) as seen from the direction (optical axis O, direction, Figure 5) in which the first reflection film (54, Figure 5) and the second reflection film (55, Figure 5) face. With respect to Claim 9, Sano further discloses wherein the first stress film (one of 59, Figure 5) has a ring shape (¶[0149] mentions 59 has a diameter and circumferential edge which is a ring shape). With respect to Claim 10, Sano further discloses wherein an inner circumference (¶[0149] mentions 59 has a circumferential edge) and an outer circumference (¶[0149] mentions 59 has a circumferential edge) of the first stress film (one of 59, Figure 5) have circular shapes (¶[0149] mentions 59 has a diameter and circumferential edge which is a circular shape) around the center portion (center of 591 and 593, Figure 5) of the light transmission region (591 and 593, Figure 5). Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to TAMARA Y WASHINGTON whose telephone number is (571)270-3887. The examiner can normally be reached Mon-Thur 730-530 EST. 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 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. /TYW/Patent Examiner, Art Unit 2872 /STEPHONE B ALLEN/Supervisory Patent Examiner, Art Unit 2872
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Prosecution Timeline

Mar 20, 2024
Application Filed
Jan 10, 2026
Non-Final Rejection — §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
81%
Grant Probability
89%
With Interview (+8.0%)
2y 9m
Median Time to Grant
Low
PTA Risk
Based on 571 resolved cases by this examiner. Grant probability derived from career allow rate.

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