Issued Patents All Time
Showing 51–54 of 54 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6347428 | Hand-held wet/dry vacuum | David Shimko, Jeffrey M. Kalman, Michael F. Wright | 2002-02-19 |
| D444603 | Tool holder for vacuum cleaner wand | John S. Murphy, David DiNunzio, Jeffrey M. Kalman, Craig M. Saunders | 2001-07-03 |
| D443960 | Portable wet/dry vacuum cleaner | David Shimko, Jeffrey M. Kalman, Michael F. Wright, Richard C. Farone, Robert A. Matousek +1 more | 2001-06-19 |
| 6073300 | Valve assembly for carpet extractor | Terry L. Zahuranec | 2000-06-13 |