Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D434918 | Chair | Robert Peter Arko, Steven Ryutaro Takayama, Eric McClure, Kenneth Penning | 2000-12-12 |
| D420538 | Chair | Robert Peter Arko, Steven Ryutaro Takayama, Eric McClure, Kenneth Penning | 2000-02-15 |