Inventor · disambiguated record
Stuart M. Dennistoun
Also filed as: DENNISTOUN STUART M · DENNISTOUN STUART MORTON
16 granted patents·515 citations·filing 1998–2009
95Inventor score
Top patents by PatentIndex Score
16 records- 0188US6227299B1Flapper valve with biasing flapper closure assemblyHALLIBURTON ENERGY SERV INC·Filed 1999·Granted May 8, 2001·133 cites·15 claims
- 0284US6263910B1Valve with secondary load bearing surfaceHALLIBURTON ENERGY SERV INC·Filed 2000·Granted Jul 24, 2001·25 cites·30 claims
- 0382US7775269B2Communication tool for accessing a non annular hydraulic chamber of a subsurface safety valveHALLIBURTON ENERGY SERV INC·Filed 2009·Granted Aug 17, 2010·11 cites·20 claims
- 0480US7249635B2Communication tool for accessing a non annular hydraulic chamber of a subsurface safety valveHALLIBURTON ENERGY SERV INC·Filed 2006·Granted Jul 31, 2007·11 cites·58 claims
- 0580US6152232AUnderbalanced well completionHALLIBURTON ENERGY SERV INC·Filed 1998·Granted Nov 28, 2000·102 cites·55 claims
- 0679US6425413B2Valve with secondary load bearing surfaceHALLIBURTON ENERGY SERV INC·Filed 2001·Granted Jul 30, 2002·20 cites·16 claims
- 0778US6880641B2Subsurface safety valve and method for communicating hydraulic fluid therethroughHALLIBURTON ENERGY SERV INC·Filed 2003·Granted Apr 19, 2005·27 cites·80 claims
- 0878US6742595B2Subsurface safety valve lock out and communication tool and method for use of the sameHALLIBURTON ENERGY SERV INC·Filed 2002·Granted Jun 1, 2004·29 cites·25 claims
- 0978US6523614B2Subsurface safety valve lock out and communication tool and method for use of the sameHALLIBURTON ENERGY SERV INC·Filed 2001·Granted Feb 25, 2003·29 cites·21 claims
- 1077US6659185B2Subsurface safety valve lock out and communication tool and method for use of the sameHALLIBURTON ENERGY SERV INC·Filed 2002·Granted Dec 9, 2003·27 cites·23 claims
- 1171US7878252B2Dual control line system and method for operating surface controlled sub-surface safety valve in a wellWEATHERFORD LAMB·Filed 2007·Granted Feb 1, 2011·12 cites·55 claims
- 1271US6196261B1Flapper valve assembly with seat having load bearing shoulderHALLIBURTON ENERGY SERV INC·Filed 1999·Granted Mar 6, 2001·51 cites·16 claims
- 1370US7475733B2Communication tool for accessing a non annular hydraulic chamber of a subsurface safety valveHALLIBURTON ENERGY SERV INC·Filed 2007·Granted Jan 13, 2009·6 cites·23 claims
- 1464US6953093B2Communication tool for accessing a non annular hydraulic chamber of a subsurface safety valveHALLIBURTON ENERGY SERV INC·Filed 2004·Granted Oct 11, 2005·14 cites·20 claims
- 1557US7032672B2Subsurface safety valve having a communication tool accessible non annular hydraulic chamberHALLIBURTON ENERGY SERV INC·Filed 2004·Granted Apr 25, 2006·10 cites·22 claims
- 1646US6289926B1Flapper valve assembly with seat having load bearing shoulderHALLIBURTON ENERGY SERV INC·Filed 2000·Granted Sep 18, 2001·8 cites·16 claims
Join the waitlist — get patent alerts
Get an alert when Stuart M. Dennistoun files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →