Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6568823 | Remote maintenance / manipulation / replacement system | Douglas Burnham | 2003-05-27 |
| 6196425 | Portable liquid container showing improved pouring capabilities | Douglas Burnham | 2001-03-06 |