Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8214920 | Hard hat adapter for a welding helmet | Joseph S. Falvo | 2012-07-10 |
| 6557174 | Replaceable, self-contained expanded viewing light shield cartridge for welding helmet | Edward L. Martin | 2003-05-06 |
| D443394 | Safety helmet | Edward L. Martin | 2001-06-05 |