| 8902077 |
Subsea communication system and technique |
John A. Kerr, Alan Johnston |
2014-12-02 |
| 8042629 |
Snow traction unit for vehicles |
— |
2011-10-25 |
| 7261162 |
Subsea communications system |
Gregor Deans, John A. Kerr, David J. Mathis, Eric Smedstad |
2007-08-28 |
| 7123162 |
Subsea communication system and technique |
John A. Kerr, Alan Johnston |
2006-10-17 |
| 7040146 |
Soil or snow probe |
Warwick Payten |
2006-05-09 |
| 6725924 |
System and technique for monitoring and managing the deployment of subsea equipment |
Kenneth C. Davidson, John A. Kerr, Alan Johnston |
2004-04-27 |
| 6681861 |
Power system for a well |
Kenneth C. Davidson, John A. Kerr, Alan Johnston |
2004-01-27 |
| 6536529 |
Communicating commands to a well tool |
John A. Kerr, Vladimir Vaynshteyn |
2003-03-25 |
| 6156742 |
Emergency contraceptive kit |
— |
2000-12-05 |
