Inventor

THORSSEN DONALD A

CA4 patents

⚠️ This page may combine multiple inventors who share the name “THORSSEN DONALD A”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

TRYSOL LTD

2 patents

US5795850AAug 18, 1998

Oil and gas well operation fluid used for the solvation of waxes and asphaltenes, and method of use thereof

TRYSOL LTD5 citations70

US5902775AMay 11, 1999

Oil and gas well operation fluid used for the solvation of waxes and asphaltenes, and method of use thereof

TRYSOL LTD1 citations59

UNDERBALANCED DRILLING SYSTEMS

1 patent

US6032747AMar 7, 2000

Water-based drilling fluid deacidification process and apparatus

UNDERBALANCED DRILLING SYSTEMS22 citations86

TRISOL INC

1 patent

US5207953AMay 4, 1993

Fire retarded solvents

TRISOL INC18 citations67