Inventor
SMITH III ROBERT E
US102 patents
⚠️ This page may combine multiple inventors who share the name “SMITH III ROBERT E”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
NAT COUPLING CO INC
44 patentsUS4694859ASep 22, 1987
Undersea hydraulic coupling and metal seal
NAT COUPLING CO INC142 citations99
US5099882AMar 31, 1992
Pressure balanced hydraulic coupling with metal seals
NAT COUPLING CO INC119 citations98
US6575430B1Jun 10, 2003
Hydraulic coupling with dovetail seal having multiple radial sealing surfaces
NAT COUPLING CO INC74 citations96
US6206040B1Mar 27, 2001
Undersea hydraulic coupling
NAT COUPLING CO INC57 citations96
US6179002B1Jan 30, 2001
Hydraulic coupling with pressure-energized dovetail seal
NAT COUPLING CO INC63 citations96
US6106026AAug 22, 2000
Locking device for undersea hydraulic coupling
NAT COUPLING CO INC63 citations96
US5829480ANov 3, 1998
Locking device for undersea hydraulic coupling
NAT COUPLING CO INC74 citations96
US5390702AFeb 21, 1995
Undersea hydraulic coupling with pre-sealing guidance
NAT COUPLING CO INC74 citations96
US5339861AAug 23, 1994
Hydraulic coupling with hollow metal o-ring seal
NAT COUPLING CO INC64 citations96
US5203374AApr 20, 1993
Pressure balanced hydraulic coupling with metal seals
NAT COUPLING CO INC92 citations96
US5052439AOct 1, 1991
Undersea hydraulic coupling with dovetail seal
NAT COUPLING CO INC80 citations96
US4915419AApr 10, 1990
Sliding lock plate for hydraulic connectors
NAT COUPLING CO INC65 citations96
US4900071AFeb 13, 1990
Undersea hydraulic coupling with dovetail seal
NAT COUPLING CO INC68 citations96
US7762824B2Jul 27, 2010
Hydraulic coupling member with electrical bonding contractor
NAT COUPLING CO INC25 citations93
US7575256B2Aug 18, 2009
Bore liner for undersea hydraulic coupling
NAT COUPLING CO INC24 citations93
US7303194B2Dec 4, 2007
Seal retainer with pressure energized metal seal members for undersea hydraulic coupling
NAT COUPLING CO INC36 citations93
US7163190B2Jan 16, 2007
Undersea hydraulic coupling member and seal retainer
NAT COUPLING CO INC27 citations93
US7063328B2Jun 20, 2006
Undersea hydraulic coupling with seal retainer
NAT COUPLING CO INC28 citations93
US7021677B2Apr 4, 2006
Seal retainer with metal seal members for undersea hydraulic coupling
NAT COUPLING CO INC32 citations93
US6962347B2Nov 8, 2005
Metal backup seal for undersea hydraulic coupling
NAT COUPLING CO INC43 citations93
US6923476B2Aug 2, 2005
Floating seal for undersea hydraulic coupling
NAT COUPLING CO INC38 citations93
US6631734B2Oct 14, 2003
Dummy undersea hydraulic coupling member
NAT COUPLING CO INC19 citations93
US6626207B1Sep 30, 2003
Undersea hydraulic coupling with interlocking poppet valve actuators
NAT COUPLING CO INC31 citations93
US6474359B1Nov 5, 2002
Undersea hydraulic coupling member
NAT COUPLING CO INC36 citations93
US6375153B2Apr 23, 2002
Undersea hydraulic coupling
NAT COUPLING CO INC21 citations93
US6237632B1May 29, 2001
Undersea hydraulic coupling member with primary and secondary poppet valves
NAT COUPLING CO INC28 citations93
US6227245B1May 8, 2001
Undersea hydraulic coupling with internal guard for flow port
NAT COUPLING CO INC34 citations93
US6202691B1Mar 20, 2001
Undersea hydraulic coupling with bleed port
NAT COUPLING CO INC39 citations93
US6202690B1Mar 20, 2001
Pressure balanced undersea hydraulic coupling
NAT COUPLING CO INC23 citations93
US6123103ASep 26, 2000
Pressure balanced coupling with split body
NAT COUPLING CO INC41 citations93
US6095191AAug 1, 2000
Undersea hydraulic coupling with tapered probe
NAT COUPLING CO INC44 citations93
US6085785AJul 11, 2000
Undersea hydraulic coupling with extended probe section
NAT COUPLING CO INC44 citations93
US5983934ANov 16, 1999
Undersea hydraulic coupling with three retained seals
NAT COUPLING CO INC33 citations93
US5899228AMay 4, 1999
Undersea hydraulic coupling with locking mechanism
NAT COUPLING CO INC22 citations93
US5762106AJun 9, 1998
Undersea hydraulic coupling and metal seal
NAT COUPLING CO INC40 citations93
US5365972ANov 22, 1994
Undersea hydraulic coupling with bleed valve
NAT COUPLING CO INC42 citations93
US5355909AOct 18, 1994
Undersea hydraulic coupling with metal seals
NAT COUPLING CO INC53 citations93
US5284183AFeb 8, 1994
Hydraulic coupler with radial metal seal
NAT COUPLING CO INC40 citations93
US5029613AJul 9, 1991
Hydraulic coupler with radial metal seal
NAT COUPLING CO INC42 citations93
US5015016AMay 14, 1991
Internal pressure loaded V-seal connector
NAT COUPLING CO INC40 citations93
US4817668AApr 4, 1989
Integral metal seal for hydraulic coupling
NAT COUPLING CO INC39 citations93
US4813454AMar 21, 1989
Undersea coupling with pressure balancing ports
NAT COUPLING CO INC44 citations93
US7159616B2Jan 9, 2007
Dual path hydraulic coupling
NAT COUPLING CO INC46 citations92
US9145983B2Sep 29, 2015
Dummy undersea hydraulic coupling member
NAT COUPLING CO INC9 citations84
SMITH III ROBERT E
3 patentsNAT COUPLING INC
3 patentsShowing the top 50 of 102 patents by PatentIndex Score.