US Patent Issued to Beckman Coulter on Feb. 24 for "Method for preparing a stable Trypan Blue solution" (Colorado Inventors)

ALEXANDRIA, Va., Feb. 24 -- United States Patent no. 12,559,629, issued on Feb. 24, was assigned to Beckman Coulter Inc. (Brea, Calif.).

"Method for preparing a stable Trypan Blue solution" was invented by Alec Lutzke (Fort Collins, Colo.) and Blake R. Mccarty (Loveland, Colo.).

According to the abstract* released by the U.S. Patent & Trademark Office: "Compositions, methods, and kits for stable Trypan Blue solutions are provided. In one example, a method includes: cooling a solution of Trypan Blue; and filtering the cooled solution. In another example, a method includes: mixing a water-soluble polymer with a Trypan Blue solution. The method may further include adding one or more ingredients such as an aqueous buffer, an osmolyte, an acid...