Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6284339 | Electret film composition adapted for printing on computer printers and the like | Calvin B. Ward | 2001-09-04 |
| 5477784 | Apparatus and method for printing on and polarizing polymer electret film | — | 1995-12-26 |
| 5354996 | Metal ion monitoring system | Jeffrey K. Griffith, Teresa A. Coons | 1994-10-11 |