Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8622058 | Medical air tubing connection system | Cornel C. Hacke | 2014-01-07 |
| 8342179 | Disposable mask assembly with exhaust filter and valve disc and method of assembling same | Cornel C. Hacke | 2013-01-01 |
| 7559323 | Disposable mask assembly with exhaust filter | Cornel C. Hacke, Martin P. Foley | 2009-07-14 |
| D275542 | Combined drinking straw and whistle | — | 1984-09-18 |