Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4925631 | Method of casting a hopcalite filter and cast ceramic fiber-hopcalite | Van Ness Harwood, Jr. | 1990-05-15 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4925631 | Method of casting a hopcalite filter and cast ceramic fiber-hopcalite | Van Ness Harwood, Jr. | 1990-05-15 |