Issued Patents All Time
Showing 1–20 of 20 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11751615 | Second-skin respirator cover | Douglas E. Wilke, Daniel J Barker, Michael A. Lorenz, Oren Shai, Chad Cook +1 more | 2023-09-12 |
| 10595580 | Helmet mounted protective shroud | Douglas E. Wilke, Daniel J Barker, Kristin J Birdsall, Michael A. Lorenz, Thomas A Pettenski +2 more | 2020-03-24 |
| 9155924 | Modular chemical/biological headgear system | Stephen E. Chase, Daniel J Barker | 2015-10-13 |
| 8479727 | Enhanced chemical/biological respiratory protection system | David M. Caretti, Stephen E. Chase | 2013-07-09 |
| 7934497 | Modular helmet-mask assembly | Stephen E. Chase | 2011-05-03 |
| 7861719 | High surface area chemical/biological air-purifying filter | Stephen E. Chase, Daniel J Barker | 2011-01-04 |
| 7743433 | Neck dam collar for use with chemical-biological protective masks and hoods | Stephen E. Chase, Mary P. McCully, Janelle E. Keberle, Leroy H. Stitz, Adam D. Seiple | 2010-06-29 |
| 7299709 | Aerosol collecting device for a chemical detector | Stephen E. Chase, Thomas Mitchell | 2007-11-27 |
| 7128070 | Biological defense masks | Stanley L. Wiener | 2006-10-31 |
| 7028688 | Operationally adaptable chemical-biological mask | Stephen E. Chase | 2006-04-18 |
| 7007690 | Advanced chemical/biological crew mask | Stephen E. Chase | 2006-03-07 |
| 6826783 | Chemical/biological helmet | Stephen E. Chase | 2004-12-07 |
| 6763835 | Chemical/biological special operations mask | Stephen E. Chase, Jeffery S. Hofmann | 2004-07-20 |
| 6412945 | Non-uniform mask lens | Stephen E. Chase, Jeffrey S. Hofmann | 2002-07-02 |
| 6176239 | Advanced chemical-biological mask | Stephen E. Chase, William M. Fritch, Jr. | 2001-01-23 |
| 5478377 | Filter for a respiratory device | John A. Scavnicky | 1995-12-26 |
| H1360 | Lightweight protective gas mask and hood | John A. Scavnicky, Albert N. Tardiff, Jr. | 1994-10-04 |
| H1361 | Softshell protective mask | Albert N. Tardiff, Jr. | 1994-10-04 |
| H1240 | Low profile chemical biological air filter | Albert N. Tardiff, Jr. | 1993-10-05 |
| 5181506 | Multilayer protective gas mask | Albert N. Tardiff, Jr. | 1993-01-26 |