ALEXANDRIA, Va., Oct. 28 -- United States Patent no. 12,449,423, issued on Oct. 21, was assigned to Phynexus Inc. (San Jose, Calif.).
"Qualitative analysis of proteins" was invented by Lee Hoang (Santa Clara, Calif.), Chris Suh (San Jose, Calif.) and Douglas T. Gjerde (Saratoga, Calif.).
According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention relates to a method for qualitative analysis of a sample protein, which method comprises the steps of providing a water swollen gel column bed comprising bound protease and a sample protein in liquid buffer, digesting the sample protein into polypeptides by contact with the gel bed and subjecting the polypeptides to mass spectrometry (MS). The method is advan...