ALEXANDRIA, Va., March 17 -- United States Patent no. 12,576,186, issued on March 17.

"Collagen pellet and methods for making and use" was invented by Robert E. Delk (Dallas) and Bernardo S. Vielma (Garland, Texas).

According to the abstract* released by the U.S. Patent & Trademark Office: "A mass or pellet of collagen, such as Type 1 bovine collagen, can advantageously be implanted last into a subcutaneous incision into which one or more medicinal and/or pharmaceutical masses or pellets have already been disposed in the subcutaneous channel incised into the tissue under the skin. The collagen is preferably shaped in the form of a pellet similar in size and shape to the medicinal and/or pharmaceutical element that is to be implanted in a ...