Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12173153 | Dual-molded polyamide-silicone composite article and methods of making | Ramnath Subramaniam, Joseph S. Warner, David M. Castiglione | 2024-12-24 |
| 12128259 | Respirator negative pressure fit check devices and methods | William A. Mittelstadt, Carl W. Raines, III, David R. Stein, Nathan A. Abel, David M. Blomberg +6 more | 2024-10-29 |
| 11738218 | Flexible filter element having an end outlet | John S. Huberty, Ryan D. Kracht | 2023-08-29 |
| 11311752 | Flexible filter element having an end outlet | John S. Huberty, Ryan D. Kracht | 2022-04-26 |
| 11052268 | Respirator negative pressure fit check devices and methods | William A. Mittelstadt, Carl W. Raines, III, David R. Stein, Nathan A. Abel, David M. Blomberg +6 more | 2021-07-06 |
| D886273 | Filter element having a pattern | John S. Huberty, Michael J. Thuente | 2020-06-02 |
| 9950202 | Respirator negative pressure fit check devices and methods | William A. Mittelstadt, Carl W. Raines, III, David R. Stein, Nathan A. Abel, David M. Blomberg +3 more | 2018-04-24 |
| D792959 | Filter element having a pattern | John S. Huberty, Michael J. Thuente | 2017-07-25 |
| D779674 | Filter element having a connector | David M. Blomberg, Elizabeth D. Cadogan, John S. Huberty, Ryan D. Kracht, William A. Mittelstadt +1 more | 2017-02-21 |