The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 17, 2026
Filed:
Feb. 28, 2024
Applicant:
Quadratic 3d, Inc., Charlestown, MA (US);
Inventors:
Samuel N. Sanders, Arlington, MA (US);
Emily M. Arndt, Akron, OH (US);
Assignee:
QUADRATIC 3D, INC., Charlestown, MA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D 311/92 (2006.01); B29C 64/135 (2017.01); B29C 64/268 (2017.01); B33Y 10/00 (2015.01); B33Y 70/00 (2020.01); C09D 4/00 (2006.01); B29C 64/245 (2017.01); B29K 33/00 (2006.01); B29K 105/00 (2006.01);
U.S. Cl.
CPC ...
C07D 311/92 (2013.01); B29C 64/135 (2017.08); B29C 64/268 (2017.08); B33Y 10/00 (2014.12); B33Y 70/00 (2014.12); C09D 4/00 (2013.01); B29C 64/245 (2017.08); B29K 2033/26 (2013.01); B29K 2105/0005 (2013.01);
Abstract
Photoswitchable photoinitiators comprising a naphthopyran molecule including one or more substituents wherein at least one substituent comprises a substituted or unsubstituted diaryl ketone moiety are disclosed. Photohardenable compositions and methods for forming an object in a volume and products thereof, which photohardenable compositions and methods include such photoswitchable photoinitiator, are also disclosed.