Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7571726 | Self-contained breathing apparatus | — | 2009-08-11 |
| 6712071 | Self-contained breathing apparatus | — | 2004-03-30 |
| 5035646 | Flush mounted receptacle and plug with pin and sleeve type contacts | Alfred L. Ehrenfels, David L. Lutz | 1991-07-30 |