Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9427040 | Headgear support device having front-back adjustment | Christopher Hall | 2016-08-30 |
| D758563 | Breathing mask | Albert F. Zwolinsky, Kevin Dolan, Robert Carr | 2016-06-07 |
| D687944 | Blower unit for breathing mask | Albert F. Zwolinsky, Christopher G. Hall, Richard D. Marshal, Robert Carr, Frank Angear | 2013-08-13 |
| D676129 | Breathing mask | Kevin Dolan, Albert F. Zwolinsky, Robert Carr | 2013-02-12 |
| D676127 | Breathing mask | Kevin Dolan, Albert F. Zwolinsky, Robert Carr | 2013-02-12 |
| D676128 | Breathing mask | Kevin Dolan, Albert F. Zwolinsky, Robert Carr | 2013-02-12 |
| D668758 | Breathing mask | Christopher G. Hall, Albert F. Zwolinsky, Robert Carr, Frank Angear | 2012-10-09 |
| D668327 | Breathing mask | Christopher Sumner, Christopher G. Hall, Robert Carr, Frank Angear, Albert F. Zwolinsky | 2012-10-02 |