Inventor
BARTHOLOMEW DAVID B
US18 patents
⚠️ This page may combine multiple inventors who share the name “BARTHOLOMEW DAVID B”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
INTELLISERV INC
10 patentsUS7207396B2Apr 24, 2007
Method and apparatus of assessing down-hole drilling conditions
INTELLISERV INC103 citations97
US7193527B2Mar 20, 2007
Swivel assembly
INTELLISERV INC108 citations96
US7142129B2Nov 28, 2006
Method and system for downhole clock synchronization
INTELLISERV INC36 citations94
US7274304B2Sep 25, 2007
System for loading executable code into volatile memory in a downhole tool
INTELLISERV INC17 citations92
US7253671B2Aug 7, 2007
Apparatus and method for compensating for clock drift in downhole drilling components
INTELLISERV INC28 citations92
US7275597B2Oct 2, 2007
Remote power management method and system in a downhole network
INTELLISERV INC37 citations91
US7288857B2Oct 30, 2007
Self-latching power supply apparatus
INTELLISERV INC8 citations71
US7123160B2Oct 17, 2006
Method for triggering an action
INTELLISERV INC10 citations71
US7135933B2Nov 14, 2006
System for adjusting frequency of electrical output pulses derived from an oscillator
INTELLISERV INC2 citations62
US7132904B2Nov 7, 2006
Apparatus for reducing noise
INTELLISERV INC0 citations40
PHONEX CORP
4 patentsUS5319634AJun 7, 1994
Multiple access telephone extension systems and methods
PHONEX CORP321 citations96
US5911119AJun 8, 1999
Secure cordless telephone extension system and method
PHONEX CORP81 citations95
US5530737AJun 25, 1996
Secure access telephone extension system and method
PHONEX CORP62 citations94
US6567474B1May 20, 2003
Digital wireless phone/modem jack capable of communications over the power lines using differential binary phase shift keying (DBPSK)
PHONEX CORP7 citations73