Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8985657 | Spill proof platter apparatus | — | 2015-03-24 |
| 6298498 | Protective helmet system | Frank J. Fabin, Floyd L. Foslien, William A. Mittelstadt | 2001-10-09 |
| 6102033 | Attachment system for replacement helmet respirator lens | Gary A. Baribeau, William A. Mittelstadt, William J. Swanson | 2000-08-15 |
| 6081931 | Protective helmet suspension system | Brett R. Johnson, Kevin C. Johnson | 2000-07-04 |
| 6035451 | Protective helmet system with cam for attaching first and second face shields thereto | Frank J. Fabin, Floyd L. Foslien, William A. Mittelstadt | 2000-03-14 |
| D420771 | Top portion of a protective respiratory helmet | — | 2000-02-15 |
| D420770 | Top portion of a protective respiratory cap | — | 2000-02-15 |
| 6016805 | Face seal for respirator | Gerald M. Brostrom | 2000-01-25 |
| D416649 | Face shield with protective lens | William J. Swanson | 1999-11-16 |
| 5437387 | Container with screw-on cap having a controlled-torque latch | — | 1995-08-01 |
| 5062421 | Respiratory mask having a soft, compliant facepiece and a thin, rigid insert and method of making | Joseph G. Reischel | 1991-11-05 |