Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D342056 | Escalator power button housing | James A. Rivera | 1993-12-07 |
| 4962942 | Minimum energy curb negotiating wheelchair | Ralph L. Barnett, Steven R. Schmid | 1990-10-16 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D342056 | Escalator power button housing | James A. Rivera | 1993-12-07 |
| 4962942 | Minimum energy curb negotiating wheelchair | Ralph L. Barnett, Steven R. Schmid | 1990-10-16 |