Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D455613 | Cup holder | Dirk Bruinsma | 2002-04-16 |
| 6360913 | Cup holder | Dirk Bruinsma | 2002-03-26 |
| 5005839 | Board game | Kyle A. Ryan, Michael S. Ackerman, Ward Payne | 1991-04-09 |
| D279692 | Combined advertising and identification badge | Jerrold W. Silkebakken | 1985-07-16 |
| D277725 | Combined bottle and can opener | Jerrold W. Silkebakken | 1985-02-26 |