Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6543464 | Simplified powered umbrella | — | 2003-04-08 |
| 5291908 | Powered umbrella | — | 1994-03-08 |
| 5213122 | Electric umbrella | — | 1993-05-25 |
| 5126096 | Method and apparatus for producing polymeric films | — | 1992-06-30 |
| 4910940 | Modular structural arrays | — | 1990-03-27 |
| 4766920 | Internal action improved gas powered umbrella | — | 1988-08-30 |
| 4523601 | Double action umbrella | — | 1985-06-18 |
| 4442995 | Machine for concrete molding | — | 1984-04-17 |
| 4428174 | Construction system | — | 1984-01-31 |
| 4357784 | Structural units and arrays therefrom | — | 1982-11-09 |
| 4324037 | Structural units and arrays therefrom | — | 1982-04-13 |
| 4253636 | Concrete molding machine | — | 1981-03-03 |