Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5488966 | Umbrella canopy and method of forming same | Russell G. Dobrowski, Arthur L. Arledge | 1996-02-06 |
| 5285803 | Emergency umbrella | Russell G. Dobrowski, Arthur L. Arledge | 1994-02-15 |
| 4966179 | Emergency umbrella | W. Baldwin, William C. Lamson, Harold M. Miller, John J. Grenga | 1990-10-30 |
| D307818 | Emergency umbrella | William C. Lamson | 1990-05-15 |
| 4842003 | Emergency umbrella | William C. Lamson | 1989-06-27 |
| D294772 | Emergency umbrella | — | 1988-03-22 |
| 4624275 | Emergency umbrella with head mountable to handle's other end | — | 1986-11-25 |
| 4354842 | System for utilizing interactive blocks to teach arithmetic | Deborah Stoddard, Donald Gorgas | 1982-10-19 |
| 4212117 | System of interactive blocks | Deborah Stoddard | 1980-07-15 |
| 4212118 | System of interactive blocks | Deborah Stoddard | 1980-07-15 |