Inventor
LANGNER CARL G
US26 patents
Patents
26 patentsUS5269629ADec 14, 1993
Elastomeric swivel support assembly for catenary riser
SHELL OIL CO96 citations96
US4617998AOct 21, 1986
Drilling riser braking apparatus and method
SHELL OIL CO83 citations96
US4616707AOct 14, 1986
Riser braking clamp apparatus
SHELL OIL CO71 citations96
US5320175AJun 14, 1994
Subsea wellhead connections
SHELL OIL CO69 citations94
US5190107AMar 2, 1993
Heave compensated support system for positioning subsea work packages
SHELL OIL CO74 citations94
US5092711AMar 3, 1992
Diverless installation of riser clamps onto fixed or compliant offshore platforms
SHELL OIL CO33 citations92
US4979296ADec 25, 1990
Method for fabricating helical flowline bundles
SHELL OIL CO48 citations92
US4700788AOct 20, 1987
Directional drilling pipelay
SHELL OIL CO28 citations92
US4687377AAug 18, 1987
Method and apparatus for subsea flexible conduit installation
SHELL OIL CO25 citations92
US4671702AJun 9, 1987
Flowline connection means
SHELL OIL CO28 citations92
US4620818ANov 4, 1986
Flowline connection means
SHELL OIL CO32 citations92
US4615646AOct 7, 1986
Flowline connection means
SHELL OIL CO51 citations92
US4588326AMay 13, 1986
Subsea pipeline connection
SHELL OIL CO27 citations92
US4541753ASep 17, 1985
Subsea pipeline connection
SHELL OIL CO35 citations92
US4472079ASep 18, 1984
Articulated pipe discharge ramp
SHELL OIL CO35 citations92
US4261671AApr 14, 1981
Corrugated pipe for deepwater applications
SHELL OIL CO46 citations92
US5390481AFeb 21, 1995
Carousel assembly of helical tube bundles
SHELL OIL CO9 citations74
US5269565ADec 14, 1993
Pipeline breakaway protection mechanism
SHELL OIL CO9 citations74
US5259700ANov 9, 1993
Pipe loop expansion/breakaway protection device
SHELL OIL CO8 citations74
US4558972ADec 17, 1985
Subsea pipeline connection
SHELL OIL CO13 citations74
US4553879ANov 19, 1985
Pipelaying in artic offshore waters
SHELL OIL CO14 citations74
US4421437ADec 20, 1983
Corrugated buckle arrestor
SHELL OIL CO13 citations74
US4843713AJul 4, 1989
Apparatus for making helical flowline bundles
SHELL OIL CO17 citations73
US4615645AOct 7, 1986
Pipeline trenching
SHELL OIL CO4 citations63
US4545139AOct 8, 1985
Under ice pipelay apparatus and method
SHELL OIL CO4 citations63
US4798158AJan 17, 1989
Seismic float recovery system
SHELL OIL CO0 citations52