Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11992078 | Headwear suspension attachment element | David M. Castiglione, Michael J. Cowell, Nathan A. Abel, William A. Mittelstadt, Jill E. Gulliver +3 more | 2024-05-28 |
| 9149669 | Respiratory protection device harness assembly | Michael J. Cowell, William A. Mittelstadt, Carl W. Raines, III, Thomas G. Skulley, Nathan A. Abel +3 more | 2015-10-06 |
| D671273 | Hearing protector | Lars G. E. Carlborg, Johan Rapp, Leif Johansson, Martin Birath, Oskar Juhlin | 2012-11-20 |
| D668392 | Hearing protector | Lars G. E. Carlborg, Johan Rapp, Leif Johansson, Martin Birath, Oskar Juhlin | 2012-10-02 |
| D663900 | Hearing protector ear cups | Robert Karlsson, Oskar Juhlin, Martin Birath, Hans Nyström | 2012-07-17 |
| D663902 | Hearing protector headband | Robert Karlsson, Oskar Juhlin, Martin Birath, Hans Nyström | 2012-07-17 |