Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4686932 | Apparatus for applying a modifying ingredient to open-celled polyurethane material | — | 1987-08-18 |
| RE32032 | Method of densifying open-celled polyurethane material | — | 1985-11-19 |
| RE31844 | Method of applying modifying ingredients to open-celled polyurethane material | — | 1985-03-05 |
| 4482391 | Cleaning method and apparatus for parabolic cellular louvers for lighting fixtures | John F. Hall | 1984-11-13 |
| 4228076 | Method of densifying open-celled polyurethane material | — | 1980-10-14 |