Issued Patents All Time
Showing 1–25 of 29 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10071401 | Feed control device for plumbing tools | Jon R. Dunkin, Michael J. Rutkowski, Alex M. Cole | 2018-09-11 |
| 8060968 | Variable belt tensioner for drain cleaning devices | Michael J. Rutkowski | 2011-11-22 |
| D595911 | Frame for a drain cleaning machine | Michael J. Rutkowski, Jon R. Dunkin | 2009-07-07 |
| D594361 | Display housing for remote inspection device | Jeffrey J. Miller, Tye Newman, Paul J. Eckhoff, Brian Harvanec | 2009-06-16 |
| D582108 | Hand held drain cleaning apparatus | Clifford Duff, Jon R. Dunkin | 2008-12-02 |
| D579612 | Frame for a drain cleaning machine | Michael J. Rutkowski, Jon R. Dunkin | 2008-10-28 |
| D578906 | Display housing for a remote visual inspection device | Jay P. Gatz, Scott Aiello, Timothy Montbach, Clifford Duff | 2008-10-21 |
| D573903 | Display housing for a remote visual inspection device | Jay P. Gatz, Scott Aiello, Timothy Montbach, Clifford Duff | 2008-07-29 |
| D573042 | Display housing for a remote visual inspection device | Jay P. Gatz, Scott Aiello, Timothy Montbach, Clifford Duff | 2008-07-15 |
| 7367077 | Drain cleaning apparatus | Michael J. Rutkowski | 2008-05-06 |
| D567123 | Remote visual inspection device | Jon R. Dunkin, Scott Aiello | 2008-04-22 |
| 6471220 | Cart and stand for supporting and transporting metal working apparatus | — | 2002-10-29 |
| 6393700 | Tube cutter | — | 2002-05-28 |
| 6381798 | Spring clutch for drain cleaning machines | Michael J. Rutkowski | 2002-05-07 |
| 6360397 | Feed control device for plumbing apparatus | — | 2002-03-26 |
| 6158076 | Feed control devices for hand operated drain cleaning tools | Michael J. Rutkowski, Jon R. Dunkin | 2000-12-12 |
| 5622319 | Portable water jetter apparatus | Kenneth S. Kriedeman | 1997-04-22 |
| 5261301 | Pipe cutting machine | Michael P. Gallagher | 1993-11-16 |
| 5031263 | Drain cleaning machine | Michael J. Rutkowski | 1991-07-16 |
| 5031276 | Drain cleaning machine | Michael J. Rutkowski | 1991-07-16 |
| 4795175 | Nipple chuck | Michael J. Rutkowski | 1989-01-03 |
| D289005 | Clamping bar for a tube flaring tool | — | 1987-03-31 |
| D287178 | Cart for a drain cleaning machine | Charles A. Boise | 1986-12-09 |
| 4526023 | Tube flaring tool die assembly | — | 1985-07-02 |
| D271436 | Sewer cleaning machine | Walter J. Noveske, Arthur J. Pulos, Paul B. Sweeney | 1983-11-15 |