Issued Patents All Time
Showing 25 most recent of 43 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12370386 | Flat-fold respirator having flanges disposed on the mask body | Scott A. Spoo, Thomas I. Insley | 2025-07-29 |
| 12150502 | Respirator including transversely-extending pleat and method of forming same | — | 2024-11-26 |
| 11116998 | Filtering face-piece respirator having folded flange | — | 2021-09-14 |
| 11083916 | Flat fold respirator having flanges disposed on the mask body | Scott A. Spoo, Thomas I. Insley | 2021-08-10 |
| 10602785 | Filtering face-piece respirator having nose cushioning member | — | 2020-03-31 |
| 10576314 | Respirator including contrast layer | — | 2020-03-03 |
| 10238158 | Filtering face-piece respirator having darted mask body | — | 2019-03-26 |
| 10182603 | Filtering face-piece respirator having strap-activated folded flange | — | 2019-01-22 |
| 10136687 | Filtering face-piece respirator having nose notch | — | 2018-11-27 |
| 10040621 | Filtering face-piece respirator dispenser | Robert E. HOLLER | 2018-08-07 |
| 9868002 | Respirator including contrast layer | — | 2018-01-16 |
| 9826786 | Horizontal flat-fold filtering face-piece respirator having indicia of symmetry | — | 2017-11-28 |
| 9770057 | Filtering face-piece respirator having nose cushioning member | — | 2017-09-26 |
| 9615612 | Filtering face-piece respirator with stiffening member integral with filtering structure | — | 2017-04-11 |
| 9610528 | Filter frame assembly with seal | Francis E. Porbeni, Kenneth J. Snider, Gregory M. Jellum, Richard A. Kirchner, Donald E. Young +2 more | 2017-04-04 |
| 9603396 | Filtering face-piece respirator having nose notch | — | 2017-03-28 |
| 9603395 | Filtering face-piece respirator having darted mask body | — | 2017-03-28 |
| 9012013 | Expandable face mask with reinforcing netting | — | 2015-04-21 |
| 8881729 | Horizontal flat-fold filtering face-piece respirator having indicia of symmetry | — | 2014-11-11 |
| D704824 | Respirator having folded nose region | Philip D. Eitzman | 2014-05-13 |
| 8640704 | Flat-fold filtering face-piece respirator having structural weld pattern | Scott A. Spoo, Nhat Ha T. Nguyen | 2014-02-04 |
| D692125 | Respiratory mask | — | 2013-10-22 |
| 8528560 | Filtering face-piece respirator having parallel line weld pattern in mask body | — | 2013-09-10 |
| 8491689 | Joined filter media pleat packs | Kenneth J. Snider, Wenli Wang, Ronald L. Wylie, Jr. | 2013-07-23 |
| 8419817 | Self-supporting pleated filter media | Douglas C. Sundet, Donald E. Young, Lowell E. Christensen | 2013-04-16 |