Issued Patents All Time
Showing 1–13 of 13 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6457931 | Truck mounted hoist | — | 2002-10-01 |
| 5589073 | System and method for removing asbestos and other solid particles from a slurry | Donald R. Andruik, James V. Van Matre, Andre Stenzel, Robert Joseph Logan, Edwin D. McCrory +2 more | 1996-12-31 |
| 5361791 | Cleaning of the exterior surface of a pipeline to remove coatings | Charles M. Reid, James B. Seale, Donald R. Andruik | 1994-11-08 |
| 5330657 | System and method for removing asbestos particles from a slurry | Donald R. Andruik, James V. Van Matre, Andre Stenzel, Robert Joseph Logan, Edwin D. McCrory +2 more | 1994-07-19 |
| 5265634 | Cleaning of the exterior surface of a pipeline to remove coatings | Donald R. Andruik | 1993-11-30 |
| 5238331 | Modularized machine for reconditioning pipelines | — | 1993-08-24 |
| 5226973 | Hydrocleaning of the exterior surface of a pipeline to remove coatings | Charles M. Reid | 1993-07-13 |
| 5209245 | Hydrocleaning of the exterior surface of a pipeline to remove coatings | Charles M. Reid, James B. Seale, Donald R. Andruik | 1993-05-11 |
| 5178171 | Hydrocleaning of the exterior surface of a pipeline to remove coatings | Donald R. Andruik | 1993-01-12 |
| 5136969 | Modularized machine for reconditioning pipelines | — | 1992-08-11 |
| 5092357 | Cleaning of the exterior surface of a pipeline to remove coatings | Donald R. Andruik | 1992-03-03 |
| 5074323 | Hydrocleaning of the exterior surface of a pipeline to remove coatings | Charles M. Reid, James B. Seale, Donald R. Andruik | 1991-12-24 |
| 5052423 | Hydrocleaning of the exterior surface of a pipeline to remove coatings | Charles M. Reid | 1991-10-01 |