Prosecution Insights
Last updated: April 19, 2026
Application No. 18/865,549

GLASS ASSEMBLY AND WINDOW ASSEMBLY

Final Rejection §102§103
Filed
Nov 13, 2024
Examiner
DELAHOUSSAYE, KEITH G
Art Unit
2875
Tech Center
2800 — Semiconductors & Electrical Systems
Assignee
Saint-Gobain
OA Round
3 (Final)
80%
Grant Probability
Favorable
4-5
OA Rounds
1y 8m
To Grant
99%
With Interview

Examiner Intelligence

Grants 80% — above average
80%
Career Allow Rate
339 granted / 424 resolved
+12.0% vs TC avg
Strong +19% interview lift
Without
With
+18.9%
Interview Lift
resolved cases with interview
Fast prosecutor
1y 8m
Avg Prosecution
11 currently pending
Career history
435
Total Applications
across all art units

Statute-Specific Performance

§101
0.3%
-39.7% vs TC avg
§103
50.0%
+10.0% vs TC avg
§102
25.6%
-14.4% vs TC avg
§112
16.9%
-23.1% vs TC avg
Black line = Tech Center average estimate • Based on career data from 424 resolved cases

Office Action

§102 §103
DETAILED ACTION Response to Arguments Applicant’s arguments, see Pages 5-10, file 02/13/2026, with respect to the rejection of claim 1 under Decourcelle (WO 2016102799 A1) have been fully considered and are persuasive, specifically, Decourcelle does not disclose, teach, suggest, or render obvious that the light extraction structure is completely encapsulated. Applicant’s specific persuasive argument is on Page 6, described by at least “wholly buried within the glass and spaced away from both major surfaces”. Therefore, the rejection has been withdrawn. However, upon further consideration, a new ground(s) of rejection is made in view of Zheng et al. (US 20080266902 A1). Further, there are claims objections, below, as well. The Examiner regrets any inconvenience caused to Applicant by this consecutive final rejection. The Examiner notes that Applicant did not traverse the Official Notice taken regarding the laser engraving in claim 2 on Page 4 of the Office Action filed on 11/19/2025. Accordingly, the laser engraving is admitted prior art under MPEP § 2144.03 (C). Claim Objections Claims 6-10 objected to because of the following informalities, below. Re Claim 6: On lines 1-2, “wherein the glass assembly comprises” should be changed to – wherein the class assembly further comprises – in order to put the claim in proper form. Re Claims 7-10: The claims are objected to due to their dependence on intervening claim 6. Re Claim 7: On line 1, “wherein the glass assembly comprises” should be changed to – wherein the class assembly further comprises – in order to put the claim in proper form. Re Claim 8: On line 1, “wherein the glass assembly comprises” should be changed to – wherein the class assembly further comprises – in order to put the claim in proper form. Appropriate correction is required. 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)(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 and 6-7 are rejected under 35 U.S.C. 102(a)(1) as being anticipated by Zheng. Re Claim 1: Zheng discloses a glass assembly (shown in at least Fig 2 and described in at least ¶ 0020 as well as below) comprising: a first glass body (lower light guide plate 2) having a first surface (surface facing toward plurality of concave or convex microstructures 5) and a second surface (surface facing toward upper light guide plate 1) which are oppositely arranged (configured arrangement shown in Fig 2); a second glass body (1) having a third surface (surface facing toward 2) facing the second surface (Fig 2) and a fourth surface (surface facing away from 2) arranged oppositely (Fig 2); and a light extraction structure (light-diffusing particles 6) arranged in the second glass body (Fig 2) and having a light extraction surface (it necessarily occurs that particles have surfaces, specifically including the light extraction structure (6)), the light extraction structure (6) being completely encapsulated in the second glass body (6), spaced apart from the third and fourth surfaces (Fig 2); wherein incident light introduced into the second glass body (shown with a solid line on the left side in Fig 2) is extracted at the light extraction structure and is led out from the fourth surface (shown with an arrow in Fig 2). Re Claim 6: Zheng further discloses wherein the glass assembly comprises a light source (light source 3) arranged adjacent to the edge of the first glass body and the second glass body (arranged on the left side of both, 2 and 1; Fig 2). Re Claim 7: Zheng further discloses wherein the glass assembly comprises a light guide component (PMMA component structure of 1 described in ¶ 0021) configured to conduct the incident light at least toward the light extraction structure in the second glass body (shown in Fig 2). Claim Rejections - 35 USC § 103 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. Claims 2-4 are rejected under 35 U.S.C. 103 as being unpatentable over Zheng. Re Claim 2: Zheng further discloses the claimed light extraction structure (6) is formed in the second glass body (shown in Fig 2). With further regard to the light extraction structure, it would have been obvious to a person having ordinary skill in the art before the effective filing date of the claimed invention (PHOSITA) to have recognized Zheng’s light extraction structure (6) as an equivalent structure to the claimed light extraction structure is formed in the second glass body by laser engraving for the purpose of extracting light and leading said light to the fourth surface. Re Claim 3: Zheng further discloses wherein the light extraction surface (surface of each 6) of the light extraction structure (each 6) is arranged toward the second glass body (surface of each 6 is arranged toward the middle of second glass body (2)). Re Claim 4: Zheng further discloses a process for forming a light extraction structure (evident by the structure of 6 shown in Fig 2). With further regard to the light extraction structure, it would have been obvious to a person having ordinary skill in the art before the effective filing date of the claimed invention (PHOSITA) to have recognized Zheng as at least suggesting an equivalent process to form the light extraction structure (6) to the claimed process of the light extraction structure is formed in the second glass body before or after hot bending process for the purpose of forming a light extraction structure. Allowable Subject Matter Claims 5 and 8-11 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. Below is a statement of reasons for the indication of allowable subject matter. Re Claim 5: The closest prior art of record (Zheng) fails to any one of disclose, teach, suggest, or render obvious the combined structure and functionality of the intermediate layer having a gray scale as set forth in the claim. Re Claim 8: The closest prior art of record (Zheng) fails to any one of disclose, teach, suggest, or render obvious the combined structure and functionality of the light source as set forth in the claim. Re Claims 9-10: The claims contain allowable subject matter due to their dependence on intervening claim 8. Re Claim 11: The closest prior art of record (Zheng) fails to any one of disclose, teach, suggest, or render obvious the combined structure and functionality of the window assembly as set forth in the claim. The Examiner notes that window assemblies were well-known in the art before the effective filing date of the claimed invention; however, it would not have been obvious to a PHOSITA to incorporate the glass assembly of Zheng into a well-known window assembly for at least the reason of lacking an expectation of success. A PHOSITA would recognize reflection film 4 in Fig 2 of being incompatible with a window assembly. Re Claim 12: The claim contains allowable subject matter due to its dependence on intervening claim 11. Conclusion THIS ACTION IS MADE FINAL. Applicant is reminded of the extension of time policy as set forth in 37 CFR 1.136(a). A shortened statutory period for reply to this final action is set to expire THREE MONTHS from the mailing date of this action. In the event a first reply is filed within TWO MONTHS of the mailing date of this final action and the advisory action is not mailed until after the end of the THREE-MONTH shortened statutory period, then the shortened statutory period will expire on the date the advisory action is mailed, and any nonprovisional extension fee (37 CFR 1.17(a)) pursuant to 37 CFR 1.136(a) will be calculated from the mailing date of the advisory action. In no event, however, will the statutory period for reply expire later than SIX MONTHS from the mailing date of this final action. Any inquiry concerning this communication or earlier communications from the examiner should be directed to KEITH G DELAHOUSSAYE whose telephone number is (469)295-9088. The examiner can normally be reached Monday-Friday: 9:00 am-5:00 pm CST. 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, James Greece can be reached at (571) 272-3711. 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. KEITH G. DELAHOUSSAYE JR. Primary Examiner Art Unit 2875 /KEITH G. DELAHOUSSAYE/Primary Examiner, Art Unit 2875
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Prosecution Timeline

Nov 13, 2024
Application Filed
Aug 07, 2025
Non-Final Rejection — §102, §103
Nov 07, 2025
Response Filed
Nov 17, 2025
Final Rejection — §102, §103
Feb 13, 2026
Response after Non-Final Action
Feb 23, 2026
Final Rejection — §102, §103 (current)

Precedent Cases

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Study what changed to get past this examiner. Based on 5 most recent grants.

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Prosecution Projections

4-5
Expected OA Rounds
80%
Grant Probability
99%
With Interview (+18.9%)
1y 8m
Median Time to Grant
High
PTA Risk
Based on 424 resolved cases by this examiner. Grant probability derived from career allow rate.

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