Issued Patents All Time
Showing 1–25 of 25 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12135096 | Portable valve operating device for use in exercising valves | Kenneth R. Pierce | 2024-11-05 |
| 12129934 | Portable valve operating device for use in exercising valves | Mark W. Wozniak, Karl G. Kopija, Ramunas Jonaitis, Kenneth R. Pierce | 2024-10-29 |
| 11920695 | Portable valve operating machine for use in exercising valves having a torque management system | Kenneth R. Pierce | 2024-03-05 |
| 11344959 | Cutting apparatus including a visual tension indicator mechanism | Kenneth R. Pierce, Jeffrey M. Swiatowy, Mark W. Wozniak | 2022-05-31 |
| 11326706 | Portable valve operating machine for use in exercising valves | Kenneth R. Pierce | 2022-05-10 |
| 10994349 | Large diameter travelling pipe cutter | Kenneth R. Pierce, Alexander S. Giberman | 2021-05-04 |
| 10835960 | Pipe machining apparatuses and methods of operating the same | Kenneth R. Pierce | 2020-11-17 |
| 10730120 | Pipe machining apparatuses and methods of operating the same | Kenneth R. Pierce | 2020-08-04 |
| 10562117 | Cutting apparatus including a liquid spray system | Kenneth R. Pierce, Jeffrey M. Swiatowy, Mark W. Wozniak | 2020-02-18 |
| 10549362 | Cutting tools for pipe cutting frames | Kenneth R. Pierce | 2020-02-04 |
| 10434589 | Cutting apparatus including a wire cutting member | Kenneth R. Pierce, Jeffrey M. Swiatowy, Mark W. Wozniak | 2019-10-08 |
| 10376970 | Cutting tool for a large diameter travelling pipe cutter | Kenneth R. Pierce, Alexander S. Giberman | 2019-08-13 |
| 10328493 | Pipe machining apparatuses and methods of operating the same | Kenneth R. Pierce | 2019-06-25 |
| 10220456 | Large diameter travelling pipe cutter | Kenneth R. Pierce, Alexander S. Giberman | 2019-03-05 |
| 10076797 | Cutting apparatus including a wire cutting member | Kenneth R. Pierce, Roy C. Coakley | 2018-09-18 |
| 10029320 | Pipe machining apparatuses and methods of operating the same | Kenneth R. Pierce | 2018-07-24 |
| 9962768 | Pipe machining apparatuses and methods of operating the same | Kenneth R. Pierce | 2018-05-08 |
| 9901997 | Pipe cutting apparatus, kit, and method | Kenneth R. Pierce, Alexander S. Giberman | 2018-02-27 |
| 9889575 | Wire saw for cutting pipe | Jeffrey M. Swiatowy | 2018-02-13 |
| 9849525 | Pipe cutting apparatus, kit, and method | Kenneth R. Pierce, Alexander S. Giberman | 2017-12-26 |
| 9636836 | Pivotal tool support for a pipe machining apparatus | Kenneth R. Pierce | 2017-05-02 |
| 9610636 | Pipe machining apparatuses and methods of operating the same | Kenneth R. Pierce | 2017-04-04 |
| 9399306 | Pipe machining apparatuses and methods of operating the same | Kenneth R. Pierce | 2016-07-26 |
| 9278417 | Pipe machining apparatuses and methods of operating the same | Kenneth R. Pierce | 2016-03-08 |
| 9186805 | Wire saw for cutting pipe | Jeffrey Michael Switatowy | 2015-11-17 |