Issued Patents All Time
Showing 1–17 of 17 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 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 |
| 11992078 | Headwear suspension attachment element | David M. Castiglione, Nathan A. Abel, William A. Mittelstadt, Jill E. Gulliver, Ian Kelsall +3 more | 2024-05-28 |
| 11865375 | Respirator fit check sealing devices and methods | William A. Mittelstadt, David M. Blomberg, Thomas W. Holmquist-Brown, Adam J. Cernohous | 2024-01-09 |
| 11824556 | Error correction using soft decision bits and multiple hypotheses | David Price | 2023-11-21 |
| 11219787 | Respirator fit check sealing devices and methods | William A. Mittelstadt, David M. Blomberg, Thomas W. Holmquist-Brown, Adam J. Cernohous | 2022-01-11 |
| 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 |
| 10765176 | Personal protective device strap connecting buckle assembly | David M. Castiglione, David M. Blomberg, David R. Stein | 2020-09-08 |
| 10659099 | Page scanning devices, computer-readable media, and methods for bluetooth page scanning using a wideband receiver | Ian Appleton, Donald Glenn Guy, Fei Tong | 2020-05-19 |
| 10476630 | Digital bus noise suppression | — | 2019-11-12 |
| 10391338 | Sleeve-fit respirator cartridge | David M. Blomberg, William A. Mittelstadt, Carl W. Raines, III, Nathan A. Abel | 2019-08-27 |
| 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 |
| D795416 | Respirator mask | David M. Blomberg, Carl W. Raines, III | 2017-08-22 |
| 9517367 | Respiratory mask having a clean air inlet chamber | Gary E. Dwyer, William A. Mittelstadt, Carl W. Raines, III, Nathan A. Abel, David M. Blomberg | 2016-12-13 |
| 9510626 | Sleeve-fit respirator cartridge | David M. Blomberg, William A. Mittelstadt, Carl W. Raines, III, Nathan A. Abel | 2016-12-06 |
| D747795 | Respirator mask body | David M. Blomberg, Carl W. Raines, III, Mark W. Schulz, Charlie Wood | 2016-01-19 |
| 9149669 | Respiratory protection device harness assembly | William A. Mittelstadt, Carl W. Raines, III, Thomas G. Skulley, Nathan A. Abel, Fredrik Ericsson +3 more | 2015-10-06 |
| 8927112 | Protective coatings for controlled corrosion resistance | David P. McKittrick | 2015-01-06 |