Issued Patents All Time
Showing 1–14 of 14 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9505040 | Pipeline debris shearing device | Matthew W. Logan, Robert F. Strong | 2016-11-29 |
| 9089884 | Pipeline debris shearing device | Matthew W. Logan, Robert F. Strong | 2015-07-28 |
| 8650695 | Pipeline cleaning pig with self-energizing diagonally oriented scrapers | Rick D. Pruett | 2014-02-18 |
| 8378667 | System and method for detecting the passage of an object in pipeline including shielded magnetometer and a microcontroller with adaptive thresholding detection means | Stephen J. Miska, Matthew W. Logan, Mark G. Register, Eric N. Freeman, Philip M. Maltby +1 more | 2013-02-19 |
| 7861665 | Pipeline pig signal with adjustable mounting | — | 2011-01-04 |
| 6067682 | Cup or disc for use as a part of a pipeline pig | — | 2000-05-30 |
| 5832348 | Material dispensing apparatus | — | 1998-11-03 |
| 5699577 | Magnetic cleaning pig | — | 1997-12-23 |
| 5057848 | Broadband frequency meter probe | Reed E. Holaday | 1991-10-15 |
| 5010848 | Folding travel cage | — | 1991-04-30 |
| 4984322 | Elastomeric disc for use on a pipeline pig | Hyun Je Cho | 1991-01-15 |
| 4825498 | Cleaning pig with selectable debris flushing action | — | 1989-05-02 |
| 4365192 | Isotopic broad-band survey meter | Jerome P. Whitaker | 1982-12-21 |
| 4297052 | Bank erosion control units | — | 1981-10-27 |