Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6880470 | Waste disposal apparatus | Richard J. Sidor, Mark Stenftenagel | 2005-04-19 |
| 6615747 | Modular workstation | Mark Stenftenagel | 2003-09-09 |
| 6170406 | Recessed monitor table | Mark P. Klein, John Poremba, Mark Stenftenagel | 2001-01-09 |
| 5931488 | Wheeled folding table | Mark Stenftenagel, James W. Brown | 1999-08-03 |
| D372812 | Folding table | Mark Stenftenagel, Frank Lakeberg | 1996-08-20 |