Issued Patents All Time
Showing 25 most recent of 28 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11964549 | Multiple cooling circuit systems and methods for using them | Giles Michael Derek PRENTICE, Jonathan Andrew Salkeld, Kevin Richard West | 2024-04-23 |
| 9194978 | Electronic marker locator systems and methods | Jeffrey Richard Thompson, Julian Poyner | 2015-11-24 |
| 8952677 | Locator for locating a current carrying conductor | Jeffrey Richard Thompson, Derek James Wong | 2015-02-10 |
| 8742747 | Detector for detecting a current carrying conductor | — | 2014-06-03 |
| 8676522 | Detector for detecting a current carrying conductor | — | 2014-03-18 |
| 8566043 | Detector for calculating the distortion of an electromagnetic field produced by a buried current carrying conductor | John Mark Royle | 2013-10-22 |
| 8183851 | Detector for calculating a depth of a buried conductor | John Mark Royle | 2012-05-22 |
| 8125210 | Detector for calculating the depth of a buried conductor | John Mark Royle | 2012-02-28 |
| 8115489 | Detector for detecting a current carrying conductor and a method of validating operation of the detector | Kevin Conway | 2012-02-14 |
| 7994770 | Transmitter of a system for detecting a buried conductor | John Mark Royle | 2011-08-09 |
| 7403012 | Detector for detecting a buried current carrying conductor using electromagnetic radiation of predetermined frequencies | Robert Worsley, Jeff Thompson, Mark Royle | 2008-07-22 |
| 7342537 | Method of and apparatus for detecting a current carrying conductor | Steve Benzie | 2008-03-11 |
| 7339379 | Method of and apparatus for determining if a buried current carrying conductor is buried above predetermined minimum depth | Jeff Thompson, Robert S. White | 2008-03-04 |
| 7304480 | Radio mode selectivity block for a detector for detecting a buried current carrying conductor | — | 2007-12-04 |
| 7235980 | Cable detection apparatus and method | James Ian King | 2007-06-26 |
| 7184951 | Methods and systems for generating phase-derivative sound | John Mark Royle, James Ian King | 2007-02-27 |
| 6977508 | Cable detection apparatus and method | James Ian King | 2005-12-20 |
| 6836231 | Signal generator | — | 2004-12-28 |
| 6777923 | System and method for detecting a concealed current carrying conductor | — | 2004-08-17 |
| 6728662 | Method and system for remotely servicing a detection device | Nicholas James Frost, Jason Hanlon, Andrew B. Lewis, Stephen F. Ridley, Michael Morgan +2 more | 2004-04-27 |
| 6717392 | Signal generator | — | 2004-04-06 |
| 6617856 | Electronic marker locator system and method | John Mark Royle | 2003-09-09 |
| 4950249 | Hypodermic needle with reclosable safety cap | Janine C. Jagger | 1990-08-21 |
| 4932944 | Intravenous port injection and connector system | Janine C. Jagger, Patrice G. Guyenet | 1990-06-12 |
| 4781692 | Retractable safety needles | Janine C. Jagger, Patrice G. Guyenet | 1988-11-01 |