Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10246316 | Anti-spill funnel assembly | Nathan D. Winters, Samuel R. White | 2019-04-02 |
| 9494270 | Systems and methods for locating and restoring service lines in pipeline rehabilitation | Harry L. Baum, James D. Keigley, Ralph K. Cordonnier, Dan Cohen | 2016-11-15 |
| 8567449 | Systems and methods for locating and restoring service lines in pipeline rehabilitation | Harry L. Baum, James D. Kiegley, Ralph K. Cordonnier, Corwin J. Bryant, Dan Cohen | 2013-10-29 |
| 8561646 | System and methods for multiple service line plug deployment | — | 2013-10-22 |
| 7841366 | Systems and methods for pipeline rehabilitation installation | Corwin J. Bryant, Ralph K. Cordonnier, James D. Keigley, Dan Cohen | 2010-11-30 |
| 5457749 | Electronic muffler | Dennis Barnes, David A. Dye | 1995-10-10 |