Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6452937 | Card-based voice messaging system | Lee Edward Borkovic, Edmund T. Burke, Robert Edward Cochran, Everett R. Johnson, Jr., Michael Stephen Lane +2 more | 2002-09-17 |
| 4798322 | Card reader/writer station for use with a personal memory card using differential data transfer | Howard L. Bernstein, Ronald Silver | 1989-01-17 |
| 4795898 | Personal memory card having a contactless interface using differential data transfer | Howard L. Bernstein, Ronald Silver | 1989-01-03 |