Prosecution Insights
Last updated: May 29, 2026
Application No. 18/994,973

VEHICLE WINDOW GLASS AND VEHICLE-MOUNTED PROJECTION SYSTEM

Final Rejection §102§103§112
Filed
Jan 15, 2025
Priority
Aug 11, 2022 — CN 202210960647.3 +1 more
Examiner
SHEN, YUZHEN
Art Unit
2623
Tech Center
2600 — Communications
Assignee
Saint-Gobain
OA Round
2 (Final)
71%
Grant Probability
Favorable
3-4
OA Rounds
1y 1m
Est. Remaining
84%
With Interview

Examiner Intelligence

Grants 71% — above average
71%
Career Allowance Rate
515 granted / 728 resolved
+8.7% vs TC avg
Moderate +13% lift
Without
With
+13.2%
Interview Lift
resolved cases with interview
Typical timeline
2y 5m
Avg Prosecution
37 currently pending
Career history
766
Total Applications
across all art units

Statute-Specific Performance

§101
0.2%
-39.8% vs TC avg
§103
90.3%
+50.3% vs TC avg
§102
3.8%
-36.2% vs TC avg
§112
5.4%
-34.6% vs TC avg
Black line = Tech Center average estimate • Based on career data from 728 resolved cases

Office Action

§102 §103 §112
Detailed Action 1. The present application, filed on or after March 16, 2013, is being examined under the first inventor to file provisions of the AIA . Response to Amendment 2. The Amendment filed on 03/18/2026 has been entered. Claim 1 has been amended. Claims 1-15 remain pending in the application. Objections to the drawings are withdrawn. Claim Rejections - 35 USC § 112 3. The following is a quotation of the first paragraph of 35 U.S.C. 112(a): (a) IN GENERAL.—The specification shall contain a written description of the invention, and of the manner and process of making and using it, in such full, clear, concise, and exact terms as to enable any person skilled in the art to which it pertains, or with which it is most nearly connected, to make and use the same, and shall set forth the best mode contemplated by the inventor or joint inventor of carrying out the invention. The following is a quotation of the first paragraph of pre-AIA 35 U.S.C. 112: The specification shall contain a written description of the invention, and of the manner and process of making and using it, in such full, clear, concise, and exact terms as to enable any person skilled in the art to which it pertains, or with which it is most nearly connected, to make and use the same, and shall set forth the best mode contemplated by the inventor of carrying out his invention. 4. Claims 1-15 are rejected under 35 U.S.C. 112(a) or 35 U.S.C. 112 (pre-AIA ), first paragraph, as failing to comply with the written description requirement. The claim(s) contains subject matter which was not described in the specification in such a way as to reasonably convey to one skilled in the relevant art that the inventor or a joint inventor, or for pre-AIA the inventor(s), at the time the application was filed, had possession of the claimed invention. Claim 1 recites the new limitations “… wherein the vehicle window glass has a first side configured to face a vehicle interior and a second side configured to face a vehicle exterior, and wherein the imaging layer and the dimming film are configured such that, in a haze state or opaque state of the dimming film, an image projected by the projection device from the first side is displayed on the second side with enhanced projection effect via the imaging layer, …”, which are not supported by the original disclosure. According to Fig. 6 of the drawing, which is reproduced below for reference, when the dimming film 160 is in a haze state or opaque state, it blocks light transmission, as a result, no projected image light transmits through the dimming film 160 and is displayed on the exterior side or second side of the vehicle. In another word, when the dimming film 160 is in a haze state or opaque state, it is impossible to see image 190 from outside of the vehicle. Furthermore, the specification filed on 03/18/2026 discloses “when the power supply to the PDLC dimming film 160 is stopped to make it hazed (opaque), both the hazed PDLC film and the transparent back projection film are good outward scattering media, and the image projected by the projection device in the vehicle are intercepted by the imaging layer 170 and the PDLC dimming film 160 at the same time. The enhanced superposition of the image makes the image brighter and clearer, and enhances the brightness of the image displayed by the outward projection, thus enhancing the effect of the outward projection ……”. According to the specification, the projected image passes through the dimming film 160 when the dimming film 160 is not in a hazed or opaque state. Therefore, the new limitations in claim 1 is in contradictory with the specification, and claim 1 contains subject matter which was not described in the specification in such a way as to reasonably convey to one skilled in the relevant art, at the time the application was filed, had possession of the claimed invention. Claims 2-14 are rejected as being dependent upon rejected base claims. PNG media_image1.png 752 1076 media_image1.png Greyscale Annotated version of Applicant’s Fig. 6 5. Claims 1-15 are rejected under 35 U.S.C. 112(a) or 35 U.S.C. 112 (pre-AIA ), first paragraph, as failing to comply with the enablement requirement. The claim(s) contains subject matter which was not described in the specification in such a way as to enable one skilled in the art to which it pertains, or with which it is most nearly connected, to make and/or use the invention. Claim 1 recites the new limitations “… wherein the vehicle window glass has a first side configured to face a vehicle interior and a second side configured to face a vehicle exterior, and wherein the imaging layer and the dimming film are configured such that, in a haze state or opaque state of the dimming film, an image projected by the projection device from the first side is displayed on the second side with enhanced projection effect via the imaging layer, …”, which are not supported by the original disclosure. According to Fig. 6 of the drawing, which is reproduced below for reference, when the dimming film 160 is in a haze state or opaque state, it blocks light transmission, as a result, no projected image light transmits through the dimming film 160 and is displayed on the exterior side or second side of the vehicle. In another word, when the dimming film 160 is in a haze state or opaque state, it is impossible to see image 190 from outside of the vehicle. Furthermore, the specification filed on 03/18/2026 discloses “when the power supply to the PDLC dimming film 160 is stopped to make it hazed (opaque), both the hazed PDLC film and the transparent back projection film are good outward scattering media, and the image projected by the projection device in the vehicle are intercepted by the imaging layer 170 and the PDLC dimming film 160 at the same time. The enhanced superposition of the image makes the image brighter and clearer, and enhances the brightness of the image displayed by the outward projection, thus enhancing the effect of the outward projection ……”. According to the specification, the projected image passes through the dimming film 160 when the dimming film 160 is not in a hazed or opaque state. Therefore, the new limitations in claim 1 is in contradictory with the specification, and the claimed subject matters in claim 1 are not described in the specification in such a way as to enable one skilled in the art to which it pertains, or with which it is most nearly connected, to make and/or use the invention. Claim Rejections - 35 USC § 102 6. 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. 7. Claims 1-4 and 7-15 are rejected under 35 U.S.C. 102(a)(1) as being anticipated by CHEN (CN 111660769 A). Regarding claim 1, CHEN discloses a vehicle window glass (Figs. 1-4; vehicle window glass) suitable for cooperating with a projection device (projection device 7) to provide a projection function, wherein the vehicle window glass comprises a first glass body (glass substrate 6), a second glass body (glass substrate 1), and an imaging layer (projection image layer 2) and a dimming film (dimming film 3) sandwiched between the first glass body (glass substrate 6) and the second glass body (glass substrate 1), and wherein an image projected by the projection device (projection device 7) on one side of the vehicle window glass displays the projected image on the other side via the vehicle window glass (Figs. 1-3), and the dimming film (dimming film 3) is configured to be capable of adjusting light transmittance and/or haze to enhance a projection effect of the imaging layer and/or provide privacy effect ([0034]-[0035]), wherein the vehicle window glass (e.g., Fig. 2 is reproduced below for reference) has a first side configured to face a vehicle interior and a second side configured to face a vehicle exterior, and wherein the imaging layer and the dimming film are configured such that, in a haze state or opaque state of the dimming film, an image projected by the projection device from the first side is displayed on the second side with enhanced projection effect via the imaging layer, while direct viewing of the vehicle interior through the vehicle window glass from the second side is reduced or prevented ([0034]-[0035]; Chen (e.g., Fig. 2) discloses a vehicle window glass, which has a same structure and a same position relationship with respect to the projection device as that disclosed by applicant (e.g., Fig. 6)). PNG media_image2.png 636 1188 media_image2.png Greyscale Annotated version of Chen’s Fig. 2 PNG media_image3.png 630 1021 media_image3.png Greyscale Annotated version of Applicant’s Fig. 6 Regarding claim 2, CHEN discloses the vehicle window glass according to claim 1, wherein the vehicle window glass (Figs. 1-4; vehicle window glass) further comprises a first intermediate layer (intermediate layer 4) for attaching the dimming film (dimming film 3) to the first glass body (glass substrate 6), and the imaging layer (projection image layer 2) is attached to the second glass body (glass substrate 1) directly (Fig. 2) or through a second intermediate layer (alternative limitation, it is interpreted as optional, in addition, Figs. 2 and 4 teach a second intermediate layer 21). Regarding claim 3, CHEN discloses the vehicle window glass according to claim 2, wherein the imaging layer (Figs. 2 and 4; projection image layer 22) is directly attached to the second glass (Figs. 2 and 4; glass substrate 1) body by back adhesive (Figs. 2 and 4; bonding layer 21) or coating (alternative limitation, it is interpreted as optional). Regarding claim 4, CHEN discloses the vehicle window glass according to claim 2, wherein the imaging layer (Fig. 2; projection image layer 2) is directly attached to the dimming film (Fig. 2; dimming film 3) or attached to the dimming film through a third intermediate layer (alternative limitation, it is interpreted as optional, in addition, Figs. 2 and 4 teach the third intermediate layer 23). Regarding claim 7, CHEN (Figs. 1-4) discloses the vehicle window glass according to claim 2, wherein the imaging layer (Fig. 4; projection image layer 22) is formed as a portion of the second intermediate layer (Fig. 4; second intermediate layer 21). Regarding claim 8, CHEN (Figs. 1-4) discloses the vehicle window glass according to claim 7, wherein the imaging layer (Fig. 4; projection image layer 22) is formed as a portion of the second intermediate layer (Fig. 4; second intermediate layer 21) by being coated on or fused with the second intermediate layer (Fig. 4 and [0040]). Regarding claim 9, CHEN (Figs. 1-4) discloses the vehicle window glass according to claim 4, wherein the imaging layer (Fig. 4; projection image layer 22) is formed as a portion of the third intermediate layer (Fig. 4; third intermediate layer 23). Regarding claim 10, CHEN (Figs. 1-4) discloses the vehicle window glass according to claim 4, wherein the imaging layer (Fig. 4; projection image layer 22) is formed as a portion of the third intermediate layer (Fig. 4; third intermediate layer 23) by being coated on or fused with the third intermediate layer (Fig. 4 and [0040]). Regarding claim 11, CHEN discloses the vehicle window glass according to claim 1, wherein the imaging layer is configured as a back projection imaging layer of any one of film layer, coating layer and micro-structure layer (e.g., Fig. 2; back projection image layer 2; [0035]). Regarding claim 12, CHEN discloses the vehicle window glass according to claim 1, wherein the dimming film is configured as any one of polymer dispersed liquid crystal, polymer network liquid crystal, guest-host liquid crystal and electrochromic ([0034]; dimming layer 3, e.g., PDLC). Regarding claim 13, CHEN discloses the vehicle window glass according to claim 1, wherein the dimming film is configured as polymer dispersed liquid crystal ([0034]; dimming layer 3, e.g., PDLC), and the imaging layer (Fig. 2; projection image layer 2) is closer to or farther from the projection device (Fig. 2; projection device 7) than the dimming film (Fig. 2; dimming film 3). Regarding claim 14, CHEN (Figs. 1-4) discloses a vehicle-mounted projection system, wherein the vehicle-mounted projection system comprises a projection device (projection device 7), a human-machine interaction unit ([0005], [0035], and [0038]) and a vehicle window glass (Figs. 1-4) according to claim 1. Regarding claim 15, CHEN (Figs. 1-4) discloses the vehicle-mounted projection system according to claim 14, wherein the projection device (projection device 7/8) is arranged inside or outside the vehicle so as to project image to outside or inside the vehicle (e.g., Figs. 2-3). 8. Claims 1-4 and 6-11 are rejected under 35 U.S.C. 102(a)(1) as being anticipated by SADAKANE (US 20220032744 A1). Regarding claim 1, SADAKANE (Figs. 1-3, 5-7, and 9) discloses a vehicle window glass (Fig. 5, vehicle window glass 140; Fig. 9, vehicle window glass 240) suitable for cooperating with a projection device (projection device 16) to provide a projection function, wherein the vehicle window glass comprises a first glass body (glass substrate 141; [0034]), a second glass body (glass substrate 142; [0034]), and an imaging layer (e.g., Fig. 9; projection image layer 150; [0038]) and a dimming film (e.g., Fig. 9; dimming film 160; [0147]) sandwiched between the first glass body (glass substrate 141) and the second glass body (glass substrate 142), and wherein an image projected by the projection device (projection device 16) on one side of the vehicle window glass displays the projected image on the other side via the vehicle window glass (e.g., Figs. 1-3), and the dimming film (dimming film 160) is configured to be capable of adjusting light transmittance and/or haze to enhance a projection effect of the imaging layer and/or provide privacy effect ([0147]), wherein the vehicle window glass has a first side configured to face a vehicle interior and a second side configured to face a vehicle exterior (e.g., Figs. 1-3; vehicle and window glass), and wherein the imaging layer (projection image layer 150) and the dimming film (dimming film 160) are configured such that, in a haze state or opaque state of the dimming film ([0147]), an image projected by the projection device (projection device 16) from the first side is displayed on the second side with enhanced projection effect via the imaging layer (projection image layer 150), while direct viewing of the vehicle interior through the vehicle window glass from the second side is reduced or prevented (e.g., Fig. 9 and [0147]). Regarding claim 2, SADAKANE (Figs. 1-3, 5-7, and 9) discloses the vehicle window glass according to claim 1, wherein the vehicle window glass (e.g., Fig. 9; vehicle window glass 240) further comprises a first intermediate layer (first intermediate layer denoted as 143-1) for attaching the dimming film (dimming film 160) to the first glass body (glass substrate 141), and the imaging layer (projection image layer 150) is attached to the second glass body (glass substrate 142) directly (alternative limitation, it is interpreted as optional) or through a second intermediate layer (second intermediate layer denoted as 143-2). Regarding claim 3, SADAKANE (Figs. 1-3, 5-7, and 9) discloses the vehicle window glass according to claim 2, wherein the imaging layer (Fig. 9; projection image layer 150) is directly attached to the second glass (Fig. 9; glass substrate 142) body by back adhesive (Fig. 9; second intermediate layer 143-2) or coating (alternative limitation, it is interpreted as optional). Regarding claim 4, SADAKANE (Figs. 1-3, 5-7, and 9) discloses the vehicle window glass according to claim 2, wherein the imaging layer (Fig. 9; projection image layer 150) is directly attached to the dimming film (alternative limitation, it is interpreted as optional) or attached to the dimming film (Fig. 9; dimming film 160) through a third intermediate layer (Fig. 9; third intermediate layer denoted as 143-3). Regarding claim 6, SADAKANE (Figs. 1-3, 5-7, and 9) discloses the vehicle window glass according to claim 2, wherein the imaging layer is formed as a portion of the dimming film (e.g., Fig. 5; imaging layer 150b is a part of a dimming structure 150; [0042]-[0043]). Regarding claim 7, SADAKANE (Figs. 1-3, 5-7, and 9) discloses the vehicle window glass according to claim 2, wherein the imaging layer (Fig. 9; projection image layer 150) is formed as a portion of the second intermediate layer (Fig. 9; second intermediate layer 143-2). Regarding claim 8, SADAKANE (Figs. 1-3, 5-7, and 9) discloses the vehicle window glass according to claim 7, wherein the imaging layer (Fig. 9; projection image layer 150) is formed as a portion of the second intermediate layer (Fig. 9; second intermediate layer 143-2) by being coated on or fused with the second intermediate layer (Fig. 9 and [0037]-[0038], [0045], [0053]). Regarding claim 9, SADAKANE (Figs. 1-3, 5-7, and 9) discloses the vehicle window glass according to claim 4, wherein the imaging layer (Fig. 9; projection image layer 150) is formed as a portion of the third intermediate layer (Fig. 9; third intermediate layer 143-3). Regarding claim 10, SADAKANE (Figs. 1-3, 5-7, and 9) discloses the vehicle window glass according to claim 4, wherein the imaging layer (Fig. 9; projection image layer 150) is formed as a portion of the third intermediate layer (Fig. 9; third intermediate layer 143-3) by being coated on or fused with the third intermediate layer (Fig. 9 and [0037]-[0038], [0045], [0053]). Regarding claim 11, SADAKANE (Figs. 1-3, 5-7, and 9) discloses the vehicle window glass according to claim 1, wherein the imaging layer is configured as a back projection imaging layer of any one of film layer, coating layer and micro-structure layer (e.g., Figs. 1-3 and 5; back projection image layer 150). Claim Rejections - 35 USC § 103 9. 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 of this title, 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. 10. Claim 5 is rejected under 35 U.S.C. 103 as unpatentable over CHEN (CN 111660769 A) in view of SADAKANE (US 20220032744 A1). Regarding claim 5, CHEN discloses the vehicle window glass according to claim 4, wherein the imaging layer (projection image layer 2) is directly attached to the dimming film (dimming film 3). CHEN does not disclose wherein the imaging layer is directly attached to the dimming film by coating. However, SADAKANE (Figs. 1-7) discloses a vehicle window glass, wherein the imaging layer is formed by coating ([0045]). Therefore, it would have been obvious to one skilled in the art at the effective filing date of the claimed invention to incorporate the teaching from SADAKANE to the vehicle window glass of CHEN. The combination/motivation would be to provide a vehicle window glass with an improved performance. Response to Arguments 11. Applicant's arguments filed 03/18/2026 have been fully considered but they are not persuasive. Claim 1 recites the new limitations “… wherein the vehicle window glass has a first side configured to face a vehicle interior and a second side configured to face a vehicle exterior, and wherein the imaging layer and the dimming film are configured such that, in a haze state or opaque state of the dimming film, an image projected by the projection device from the first side is displayed on the second side with enhanced projection effect via the imaging layer, …”, which are not supported by the original disclosure. According to Fig. 6 of the drawing, which is reproduced below for reference, when the dimming film 160 is in a haze state or opaque state, it blocks light transmission, as a result, no projected image light transmits through the dimming film 160 and is displayed on the exterior side or second side of the vehicle. In another word, when the dimming film 160 is in a haze state or opaque state, it is impossible to see image 190 from outside of the vehicle. Furthermore, the specification filed on 03/18/2026 discloses “when the power supply to the PDLC dimming film 160 is stopped to make it hazed (opaque), both the hazed PDLC film and the transparent back projection film are good outward scattering media, and the image projected by the projection device in the vehicle are intercepted by the imaging layer 170 and the PDLC dimming film 160 at the same time. The enhanced superposition of the image makes the image brighter and clearer, and enhances the brightness of the image displayed by the outward projection, thus enhancing the effect of the outward projection ……”. According to the specification, the projected image passes through the dimming film 160 when the dimming film 160 is not in a hazed or opaque state. Therefore, the new limitations in claim 1 is in contradictory with the specification. PNG media_image3.png 630 1021 media_image3.png Greyscale Furthermore, Chen (e.g., Figs. 1-4 and [0034]-[0035]) discloses a vehicle window glass (Fig. 2 is reproduced below for reference), which has a same structure and a same position relationship with respect to the projection device as that disclosed by applicant (e.g., Fig. 6)). PNG media_image2.png 636 1188 media_image2.png Greyscale Annotated version of Chen’s Fig. 2 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 extension fee 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. Inquiry Any inquiry concerning this communication or earlier communications from the examiner should be directed to YUZHEN SHEN whose telephone number is (571)272-1407. The examiner can normally be reached on 9:00-18:00. If attempts to reach the examiner by telephone are unsuccessful, the examiner’s supervisor, Chanh Nguyen can be reached on 571-272-7772. The fax phone number for the organization where this application or proceeding is assigned is 571-273-8300. Information regarding the status of an application may be obtained from the Patent Application Information Retrieval (PAIR) system. Status information for published applications may be obtained from either Private PAIR or Public PAIR. Status information for unpublished applications is available through Private PAIR only. For more information about the PAIR system, see http://pair-direct.uspto.gov. Should you have questions on access to the Private PAIR system, contact the Electronic Business Center (EBC) at 866-217-9197 (toll-free). If you would like assistance from a USPTO Customer Service Representative or access to the automated information system, call 800-786-9199 (IN USA OR CANADA) or 571-272-1000. /YUZHEN SHEN/Primary Examiner, Art Unit 2623
Read full office action

Prosecution Timeline

Jan 15, 2025
Application Filed
Dec 18, 2025
Non-Final Rejection mailed — §102, §103, §112
Mar 18, 2026
Response Filed
Apr 08, 2026
Final Rejection mailed — §102, §103, §112 (current)

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Prosecution Projections

3-4
Expected OA Rounds
71%
Grant Probability
84%
With Interview (+13.2%)
2y 5m (~1y 1m remaining)
Median Time to Grant
Moderate
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