P

Inventor

LAI TA-WANG

TW21 patents
⚠️ This page may combine multiple inventors who share the name “LAI TA-WANG”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

AIR PROD & CHEM

14 patents
US4843118AJun 27, 1989

Acidized fracturing fluids containing high molecular weight poly(vinylamines) for enhanced oil recovery

AIR PROD & CHEM193 citations98
US4921621AMay 1, 1990

Hydrolyzed co-polymers of N-vinylamide and acrylamide for use as waterloss control additives in drilling mud

AIR PROD & CHEM52 citations96
US5300566AApr 5, 1994

Method for preparing poly(vinyl alcohol)-co-poly(vinylamine) via a two-phase process

AIR PROD & CHEM48 citations92
US5194492AMar 16, 1993

Two-phase process for preparing poly(vinyl alcohol)-co-poly(vinylamine)

AIR PROD & CHEM32 citations92
US5155167AOct 13, 1992

Vinyl alcohol copolymers containing allylamine functionality

AIR PROD & CHEM24 citations92
US5085787AFeb 4, 1992

Crosslinked vinylamine polymer in enhanced oil recovery

AIR PROD & CHEM45 citations92
US5086111AFeb 4, 1992

Amine functional polymers containing acetal groups

AIR PROD & CHEM37 citations92
US4952656AAug 28, 1990

Manufacture of high molecular weight poly(vinylamines)

AIR PROD & CHEM33 citations92
US4943676AJul 24, 1990

Thermolysis of poly(N-vinylformamide) to poly(N-vinylamine)

AIR PROD & CHEM24 citations92
US4931501AJun 5, 1990

Modified poly(vinyl alcohol) containing morpholinoalkylether groups

AIR PROD & CHEM25 citations92
US4828725AMay 9, 1989

Completion fluids containing high molecular weight poly(vinylamines)

AIR PROD & CHEM39 citations92
US4804793AFeb 14, 1989

Drilling mud compositions containing high molecular weight poly (vinylamines)

AIR PROD & CHEM10 citations73
US4798871AJan 17, 1989

Compositions containing high molecular weight poly(vinylamines) for enhanced oil recovery

AIR PROD & CHEM16 citations73
US4795770AJan 3, 1989

Cement composition for oil well drilling holes containing high molecular weight poly (vinylamines)

AIR PROD & CHEM3 citations62

OPTIMAX TECH CORP

5 patents

HENKEL RESEARCH CORP

1 patent

PINSCHMIDT JR ROBERT K

1 patent