Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12029926 | Respiratory protection device positive pressure seal check methods and devices | David M. Castiglione | 2024-07-09 |
| D890916 | Full face respirator front cover | David M. Castiglione, Jacob P. Vanderheyden | 2020-07-21 |
| 6480096 | Method and apparatus for theft deterrence and secure data retrieval in a communication device | Jose Gutman | 2002-11-12 |
| D439230 | Portable communication device | Charles E. Staron, Mark William McIntosh, Jan Hippen, I Chiang Sun, Alf Hackenberg | 2001-03-20 |
| 6188881 | Belt clip and device using the same | — | 2001-02-13 |
| 6134121 | Housing assembly utilizing a heat shrinkable composite laminate | — | 2000-10-17 |
| 5771576 | Strain relief device and method | Gregg M. Connary | 1998-06-30 |
| D370014 | Selective call receiver | Shirley Drass, Leo Garza, Jr. | 1996-05-21 |