Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4941777 | Apparatus for conveying material | — | 1990-07-17 |
| 4937986 | Gutter protector | Donald W. Way, Sr., Royce L. Vail | 1990-07-03 |
| 4820086 | Pneumatic tube carrier system and method | — | 1989-04-11 |
| 4470913 | Method and apparatus for fluid assisted filter doffing | — | 1984-09-11 |
| 4360432 | Filtering apparatus having inlet vanes for preventing accumulation of particulates | — | 1982-11-23 |