Inventor
STEVENS CRAIG A
US14 patents
⚠️ This page may combine multiple inventors who share the name “STEVENS CRAIG A”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SHELL OIL CO
9 patentsUS5405911AApr 11, 1995
Butadiene polymers having terminal functional groups
SHELL OIL CO89 citations97
US5393843AFeb 28, 1995
Butadiene polymers having terminal functional groups
SHELL OIL CO89 citations97
US5460739AOct 24, 1995
Star polymer viscosity index improver for oil compositions
SHELL OIL CO31 citations92
US5458791AOct 17, 1995
Star polymer viscosity index improver for oil compositions
SHELL OIL CO28 citations92
US5194530AMar 16, 1993
Termination of anionic polymerization using hydrocarbon terminating agents
SHELL OIL CO21 citations92
US5458792AOct 17, 1995
Asymmetric triblock copolymer viscosity index improver for oil compositions
SHELL OIL CO15 citations73
US5360875ANov 1, 1994
Method for producing coupled asymmetric polymers
SHELL OIL CO16 citations73
US5151475ASep 29, 1992
Termination of anionic polymerization
SHELL OIL CO10 citations73
US5543472AAug 6, 1996
Concurrent epoxidation and catalyst residue extraction
SHELL OIL CO10 citations68
KRATON POLYMERS US LLC
3 patentsUSRE39617EMay 8, 2007
Butadiene polymers having terminal functional groups
KRATON POLYMERS US LLC6 citations73
US7285596B2Oct 23, 2007
Anionic polymerization diinitiator and process for preparing same
KRATON POLYMERS US LLC6 citations70
US7550537B2Jun 23, 2009
Organo-dilithium compound and process for preparing the same
KRATON POLYMERS US LLC0 citations48