Issued Patents All Time
Showing 1–20 of 20 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8414043 | End effector for mobile remotely controlled robot | Scott R. Albin | 2013-04-09 |
| 8276500 | Weapon mount | Hans Hug, Michael Thomas Johnson, Nathan R. Desmeule | 2012-10-02 |
| 8176808 | Robot arm assembly | Jonathan Hastie, Hans Hug, Lance Lynn Andrus, Michael Thomas Johnson, David Hoadley | 2012-05-15 |
| 7895930 | Weapon mount | Hans Hug, Michael Thomas Johnson, Nathan R. Desmeule | 2011-03-01 |
| 7677587 | Trailer and hitch mechanism for a robot | Michael L. Robert, Michael Thomas Johnson, Charles Dean | 2010-03-16 |
| RE35542 | Pipe bursting and replacement method | David I. Freed, Thomas H. Mann | 1997-06-24 |
| 5597046 | Guided mole | — | 1997-01-28 |
| 5586580 | Apparatus and method for internally sealing pipes | David I. Freed | 1996-12-24 |
| RE35271 | Pipe bursting and replacement apparatus | David I. Freed, Thomas H. Mann | 1996-06-11 |
| 5423230 | Long range internal pipe inspection maintenance system | Ross Olander, Mark E. Snyder | 1995-06-13 |
| 5350254 | Guided mole | David I. Freed, Thomas H. Mann | 1994-09-27 |
| 5322391 | Guided mole | — | 1994-06-21 |
| 5195392 | Internal pipe inspection system | Joseph P. Moore, Andrew J. Kudarauskas, Theodore J. Kliszczewicz, John E. Allen, Philip R. Lichtman +2 more | 1993-03-23 |
| 5184391 | Process of press fitting pipe sections together to form a pipeline | David I. Freed | 1993-02-09 |
| 5079816 | Positive seal coupling internal joining press | David I. Freed | 1992-01-14 |
| 5078546 | Pipe bursting and replacement method | David I. Freed, Thomas Mann | 1992-01-07 |
| 4993503 | Horizontal boring apparatus and method | Edward E. Fischer, Thomas H. Mann | 1991-02-19 |
| 4983071 | Pipe bursting and replacement apparatus and method | David I. Freed, Thomas Mann | 1991-01-08 |
| 4671367 | Pole hole digger with percussive core drilling | Thomas P. Brunsing, Joseph S. Spector, Thomas Tallone | 1987-06-09 |
| 4662656 | Pipeline coupling | Stephen Douglas | 1987-05-05 |