Inventor · disambiguated record
David Bartholomew
Also filed as: BARTHOLOMEW DAVID · BARTHOLOMEW DAVID B · BARTHOLOMEW DAVID BAIRD
25 granted patents·7 pending applications·1,078 citations·filing 1991–2016
97Inventor score
Files withINTELLISERV INC11HALL DAVID R6PHONEX CORP5INTELLISERV INTERNAT HOLDING L3PHONEX BROADBAND CORP2
Top patents by PatentIndex Score
32 records- 0196US7277026B2Downhole component with multiple transmission elementsHALL DAVID R·Filed 2005·Granted Oct 2, 2007·74 cites·16 claims
- 0294US7193527B2Swivel assemblyINTELLISERV INC·Filed 2004·Granted Mar 20, 2007·108 cites·17 claims
- 0394US5319634AMultiple access telephone extension systems and methodsPHONEX CORP·Filed 1991·Granted Jun 7, 1994·321 cites·19 claims
- 0492US7649473B2Physically segmented logical token networkINTELLISERV INC·Filed 2007·Granted Jan 19, 2010·42 cites·15 claims
- 0590US7207396B2Method and apparatus of assessing down-hole drilling conditionsINTELLISERV INC·Filed 2004·Granted Apr 24, 2007·103 cites·33 claims
- 0688US7275597B2Remote power management method and system in a downhole networkINTELLISERV INC·Filed 2005·Granted Oct 2, 2007·37 cites·13 claims
- 0782US6107912AWireless modem jackPHONEX CORP·Filed 1997·Granted Aug 22, 2000·80 cites·3 claims
- 0877US5911119ASecure cordless telephone extension system and methodPHONEX CORP·Filed 1996·Granted Jun 8, 1999·81 cites·6 claims
- 0976US7142129B2Method and system for downhole clock synchronizationINTELLISERV INC·Filed 2004·Granted Nov 28, 2006·36 cites·21 claims
- 1076US5530737ASecure access telephone extension system and methodPHONEX CORP·Filed 1993·Granted Jun 25, 1996·62 cites·14 claims
- 1171US7253671B2Apparatus and method for compensating for clock drift in downhole drilling componentsINTELLISERV INC·Filed 2004·Granted Aug 7, 2007·28 cites·19 claims
- 1270US7548068B2System for testing properties of a networkINTELLISERV INTERNAT HOLDING L·Filed 2004·Granted Jun 16, 2009·30 cites·13 claims
- 1369US9785806B2Low-frequency receiving for radio frequency identificationIMSAR LLC·Filed 2016·Granted Oct 10, 2017·4 cites·24 claims
- 1466US7288857B2Self-latching power supply apparatusINTELLISERV INC·Filed 2005·Granted Oct 30, 2007·8 cites·36 claims
- 1561US6456192B1Method and system for power line null detection and automatic frequency and gain controlPHONEX BROADBAND CORP·Filed 2000·Granted Sep 24, 2002·8 cites·4 claims
- 1659US7570175B2Node discovery in physically segmented logical token networkINTELLISERV INTERNAT HOLDING L·Filed 2007·Granted Aug 4, 2009·5 cites·20 claims
- 1759US7274304B2System for loading executable code into volatile memory in a downhole toolINTELLISERV INC·Filed 2004·Granted Sep 25, 2007·17 cites·21 claims
- 1857US7948395B2Downhole transmission system comprising a coaxial capacitorINTELLISERV LLC·Filed 2007·Granted May 24, 2011·4 cites·18 claims
- 1952US7123160B2Method for triggering an actionINTELLISERV INC·Filed 2004·Granted Oct 17, 2006·10 cites·36 claims
- 2046US2005285706A1Downhole transmission system comprising a coaxial capacitorHALL DAVID R·Filed 2004·Application pending·0 cites
- 2144US2010054273A1Physically Segmented Logical Token NetworkJOHNSON MONTE·Filed 2009·Application pending·0 cites
- 2243US7810125B2Method and system for a low cost wireless telephone link for a set top boxPHONEX BROADBAND CORP·Filed 2007·Granted Oct 5, 2010·0 cites·18 claims
- 2342US7135933B2System for adjusting frequency of electrical output pulses derived from an oscillatorINTELLISERV INC·Filed 2004·Granted Nov 14, 2006·2 cites·28 claims
- 2442US2008007425A1Downhole Component with Multiple Transmission ElementsHALL DAVID R·Filed 2007·Application pending·0 cites
- 2541US2006256718A1Apparatus for Regulating BandwidthHALL DAVID R·Filed 2005·Application pending·0 cites
- 2640US7586934B2Apparatus for fixing latencyINTELLISERV INTERNAT HOLDING L·Filed 2004·Granted Sep 8, 2009·4 cites·28 claims
- 2738US7132904B2Apparatus for reducing noiseINTELLISERV INC·Filed 2005·Granted Nov 7, 2006·0 cites·12 claims
- 2838US5852785ASecure access telephone extension system and method in a cordless telephone systemFiled 1996·Granted Dec 22, 1998·7 cites·7 claims
- 2936US6567474B1Digital wireless phone/modem jack capable of communications over the power lines using differential binary phase shift keying (DBPSK)PHONEX CORP·Filed 1999·Granted May 20, 2003·7 cites·1 claims
- 3036US2006062249A1Apparatus and method for adjusting bandwidth allocation in downhole drilling networksHALL DAVID R·Filed 2004·Application pending·0 cites
- 3135US2005212530A1Method and Apparatus for Testing Electromagnetic Connectivity in a Drill StringHALL DAVID R·Filed 2004·Application pending·0 cites
- 3234US2003005460A1Method and system for a low cost wireless telephone link for a set top boxFiled 2001·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →