Prosecution Insights
Last updated: May 04, 2026
Application No. 18/462,769

VARIABLE TRANSMITTANCE LAMINATE WITH EMBEDDED THERMALLY CONDUCTIVE MULTI-LAYER

Final Rejection §112
Filed
Sep 07, 2023
Examiner
HANDVILLE, BRIAN
Art Unit
1783
Tech Center
1700 — Chemical & Materials Engineering
Assignee
GM Global Technology Operations LLC
OA Round
2 (Final)
51%
Grant Probability
Moderate
3-4
OA Rounds
9m
Est. Remaining
79%
With Interview

Examiner Intelligence

Grants 51% of resolved cases
51%
Career Allowance Rate
272 granted / 530 resolved
-13.7% vs TC avg
Strong +28% interview lift
Without
With
+27.6%
Interview Lift
resolved cases with interview
Typical timeline
3y 5m
Avg Prosecution
62 currently pending
Career history
592
Total Applications
across all art units

Statute-Specific Performance

§103
60.1%
+20.1% vs TC avg
§102
15.1%
-24.9% vs TC avg
§112
21.3%
-18.7% vs TC avg
Black line = Tech Center average estimate • Based on career data from 530 resolved cases

Office Action

§112
Election/Restrictions Claim 8 is directed to an allowable product. Pursuant to the procedures set forth in MPEP § 821.04(B), claims 15-17 and 20, directed to the process of making or using an allowable product, previously withdrawn from consideration as a result of a restriction requirement, are hereby rejoined and fully examined for patentability under 37 CFR 1.104. Because all claims previously withdrawn from consideration under 37 CFR 1.142 have been rejoined, the restriction requirement as set forth in the Office action mailed on 11 September 2025 is hereby withdrawn. In view of the withdrawal of the restriction requirement as to the rejoined inventions, applicant(s) are advised that if any claim presented in a divisional application is anticipated by, or includes all the limitations of, a claim that is allowable in the present application, such claim may be subject to provisional statutory and/or nonstatutory double patenting rejections over the claims of the instant application. Once the restriction requirement is withdrawn, the provisions of 35 U.S.C. 121 are no longer applicable. See In re Ziegler, 443 F.2d 1211, 1215, 170 USPQ 129, 131-32 (CCPA 1971). See also MPEP § 804.01. Allowable Subject Matter Claims 1, 2, 6-9, 13-16 and 20 are allowed. The following is a statement of reasons for the indication of allowable subject matter. The closest prior art of record Williams (US 2014/0328078), Cho (US 2009/0154180), Strazzanti (US 2006/0250809), Wehlus (US 2018/0187865), Endo (US 2018/0277780), Traian (WO 2020/232544), and Gordon (US 2018/0023778) while broadly teaching the limitations of the presently claimed invention, do not teach or suggest the combination of limitations as presently claimed in either claim 1, 8, or 15. While the reliance of Williams, Cho, and Strazzanti, Wehlus, Endo, Traian, and/or Gordon appropriately rendered obvious the limitations in the previous set of claims (submitted on 5 November 2025), the amendment to independent claims introduces a scope to the claims which is not obvious over the prior art references made of record. Specifically, the claims now require the auto-shading film being located directly on the thermally conductive multi-layer, which is not taught or obvious over the current record. In other words, there is no apparent reason for why a person having ordinary skill in the art would incorporate the multi-layered thermal pad (thermally conductive multi-layer) of the heat sink, as taught by Cho, to be in direct contact the with film 128, 900 (auto-shading film) disclosed by Williams. Upon further search and consideration, the additional reference Miller (US 2023/0350240 and WO 2021/229562 A2 publications) was found which is of particular importance as Miller teaches an analogous auto-shading film, referred to as a thermal transparency control device (TTCD) 100, where a multilayer construction which is in direct contact with said device 100 includes a combination of a panel 20 and reflective layer 22. However, these constituent components fail to meet the claimed thermally conductive multi-layer from the claims because the panel 20 and reflective layer 22 are disclosed as reflecting incident thermal radiation transmitted by the TTCD, and fails to provide information which would have led a person having ordinary skill in the art to a reasonable conclusion that such a multilayered construction also conducts thermal energy. See paragraphs [0077] – [0084] and Figures 2A-B from Miller. Therefore, Miller fails to meet the added limitation in question which requires direct contact between the thermally conductive multi-layer and the auto-shading film. Any comments considered necessary by applicant must be submitted no later than the payment of the issue fee and, to avoid processing delays, should preferably accompany the issue fee. Such submissions should be clearly labeled “Comments on Statement of Reasons for Allowance.” Claim Rejections - 35 USC § 112 The following is a quotation of 35 U.S.C. 112(d): (d) REFERENCE IN DEPENDENT FORMS.—Subject to subsection (e), a claim in dependent form shall contain a reference to a claim previously set forth and then specify a further limitation of the subject matter claimed. A claim in dependent form shall be construed to incorporate by reference all the limitations of the claim to which it refers. The following is a quotation of pre-AIA 35 U.S.C. 112, fourth paragraph: Subject to the following paragraph [i.e., the fifth paragraph of pre-AIA 35 U.S.C. 112], a claim in dependent form shall contain a reference to a claim previously set forth and then specify a further limitation of the subject matter claimed. A claim in dependent form shall be construed to incorporate by reference all the limitations of the claim to which it refers. Claims 3, 10, and 17 are rejected under 35 U.S.C. 112(d) or pre-AIA 35 U.S.C. 112, 4th paragraph, as being of improper dependent form for failing to further limit the subject matter of the claim upon which it depends, or for failing to include all the limitations of the claim upon which it depends. Claims 3, 10 and 17 each contain an embodiment which excludes the auto-shading film being in direct contact with the thermally conductive layer. That is, claims 3, 10 and 17 each recite “a moisture barrier coating layer between the auto-shading film and the thermally conductive multi-layer.” Claims 1, 8 and 15, the claims from which claims 3, 10 and 17 respectfully depend, each require “[the] auto-shading film [being] directly on the thermally conductive layer.” As such, claims 3, 10 and 17 are each inconsistent with the claims from which they depend, claims 1, 8 and 15, respectfully, and, indeed contradicts claims 1, 8 and 15, respectfully. See Multilayer, 831 F.3d at 1362 (“A dependent claim that contradicts, rather than narrows, the claim from which it depends is invalid.”) (citing 35 U.S.C. §112(d) (requiring that “a claim in dependent form shall contain a reference to a claim previously set forth and then specify a further limitation of the subject matter claimed” (emphasis added)). Other cases have held claims invalid under pre-AIA 35 U.S.C. § 112, fourth paragraph for claiming subject matter that was “non-overlapping” with the claim from which it depended. Pfizer, Inc. v. Ranbaxy Labs. Ltd., 457 F.3d 1284, 1391-92 (Fed. Cir. 2006); see also Curtiss-Wright Flow Control Corp. v. Velan, Inc., 438 F.3d 1374, 1380 (Fed. Cir. 2006) (noting that a dependent claim can be invalid for failing to comply with pre-AIA 35 U.S.C. § 112, fourth paragraph). Applicant may cancel the claim(s), amend the claim(s) to place the claim(s) in proper dependent form, rewrite the claim(s) in independent form, or present a sufficient showing that the dependent claim(s) complies with the statutory requirements. Response to Arguments Applicant’s arguments, see pages 7-9, filed 4 March 2026, have been considered. However, these arguments are moot because the previous prior art rejections were withdrawn due to an amendment not addressed in this portion of the applicant’s response. See the examiner’s statement of reasons for the indication of allowable subject matter, under the “Allowable Subject Matter” heading provided above. Conclusion Applicant's amendment necessitated the new ground(s) of rejection presented in this Office action. Accordingly, THIS ACTION IS MADE FINAL. See MPEP § 706.07(a). 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 BRIAN HANDVILLE whose telephone number is (571)272-5074. The examiner can normally be reached Monday through Thursday, from 9 am to 4 pm. 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, Veronica Ewald can be reached at (571) 272-8519. 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. /BRIAN HANDVILLE/Primary Examiner, Art Unit 1783
Read full office action

Prosecution Timeline

Sep 07, 2023
Application Filed
Jan 13, 2026
Non-Final Rejection — §112
Feb 05, 2026
Interview Requested
Feb 11, 2026
Applicant Interview (Telephonic)
Feb 11, 2026
Examiner Interview Summary
Mar 04, 2026
Response Filed
Apr 20, 2026
Final Rejection — §112 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12600673
COMPOSITE MEMBER, AND HEAT GENERATION DEVICE, BUILDING MEMBER AND LIGHT EMITTING DEVICE, EACH OF WHICH USES SAME
4y 7m to grant Granted Apr 14, 2026
Patent 12600109
CARBON FIBER-REINFORCED COMPOSITE MATERIAL
2y 2m to grant Granted Apr 14, 2026
Patent 12576329
MULTI-MATERIAL SKATEBOARD DECK
3y 3m to grant Granted Mar 17, 2026
Patent 12577369
HIGH TENACITY FILLED FILMS COMPRISING A POLYMER HAVING IMIDAZOLE GROUPS
2y 6m to grant Granted Mar 17, 2026
Patent 12533855
COMPOSITE COMPONENT, METHOD OF MANUFACTURING A PREFORM FOR THE COMPONENT
2y 6m to grant Granted Jan 27, 2026
Study what changed to get past this examiner. Based on 5 most recent grants.

Strategy Recommendation AI-generated — please review before filing

Get a prosecution strategy drawn from examiner precedents, rejection analysis, and claim mapping.
Typically takes 5-10 seconds — AI-generated, attorney review required before filing

Prosecution Projections

3-4
Expected OA Rounds
51%
Grant Probability
79%
With Interview (+27.6%)
3y 5m (~9m remaining)
Median Time to Grant
Moderate
PTA Risk
Based on 530 resolved cases by this examiner. Grant probability derived from career allowance rate.

Sign in with your work email

Enter your email to receive a magic link. No password needed.

Personal email addresses (Gmail, Yahoo, etc.) are not accepted.

Free tier: 3 strategy analyses per month