Patents by Inventor David Welty

David Welty has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

System for automated performance of sound recordings

Patent number: D421254

Type: Grant

Filed: May 5, 1998

Date of Patent: February 29, 2000

Assignee: Hallmark Cards, Incorporated

Inventors: David Welty, Michael J. Bigg, Jimmy J. D. Leeper

System for automated performance of sound recordings