P

Inventor

CHEN CHI-WAN

US5 patents
⚠️ This page may combine multiple inventors who share the name “CHEN CHI-WAN”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

DU PONT

4 patents
US4368069AJan 11, 1983

Herbicidal sulfonamides

DU PONT24 citations79
US4640704AFeb 3, 1987

Herbicidal sulfonamides

DU PONT1 citations49
US4582525AApr 15, 1986

Herbicidal sulfonamides

DU PONT1 citations49
US4474601AOct 2, 1984

Herbicidal alkenyl benzenesulfonamide

DU PONT1 citations49

US HEALTH

1 patent
US4986256AJan 22, 1991

Use of paramagnetic metalloporphyrins as contrast agents for tumors in MRI imaging

US HEALTH24 citations87