Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6357776 | Constant center of gravity tiltable chair of a wheelchair | Gerold Goertzen, George R. Cockram, Todd Dinner, Hymie Pogir | 2002-03-19 |
| 5971482 | Constant center of gravity tiltable chair of a wheelchair | Gerold Goertzen | 1999-10-26 |