Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9494270 | Systems and methods for locating and restoring service lines in pipeline rehabilitation | John A. Cain, Harry L. Baum, James D. Keigley, Dan Cohen | 2016-11-15 |
| 8567449 | Systems and methods for locating and restoring service lines in pipeline rehabilitation | John A. Cain, Harry L. Baum, James D. Kiegley, Corwin J. Bryant, Dan Cohen | 2013-10-29 |
| 7841366 | Systems and methods for pipeline rehabilitation installation | Corwin J. Bryant, John A. Cain, James D. Keigley, Dan Cohen | 2010-11-30 |