US Patent Issued to QUADRATIC 3D on July 14 for "Photohardenable compositions and methods for forming an object in a volume of a photohardenable composition" (Ohio, Massachusetts Inventors)

ALEXANDRIA, Va., July 14 -- United States Patent no. 12,679,993, issued on July 14, was assigned to QUADRATIC 3D INC. (Charlestown, Mass.).

"Photohardenable compositions and methods for forming an object in a volume of a photohardenable composition" was invented by Samuel N. Sanders (Arlington, Mass.) and Emily M. Arndt (Arkon, Ohio).

According to the abstract* released by the U.S. Patent & Trademark Office: "Photohardenable compositions comprising a photohardenable component and a photoswitchable photoinitiator, wherein the photoswitchable photoinitiator is activatable by exposure to light having a first wavelength and light having a second wavelength to induce a crosslinking or polymerization reaction in the photohardenable component, a...