P

Inventor

DUNCAN CHARLES W

US8 patents
⚠️ This page may combine multiple inventors who share the name “DUNCAN CHARLES W”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

SINCO INC

4 patents
US5332071AJul 26, 1994

Shock absorber for safety cable system

SINCO INC112 citations96
US4892169AJan 9, 1990

Perimeter debris net lifting system

SINCO INC52 citations95
US5299654AApr 5, 1994

Safety net support system

SINCO INC51 citations91
US5170829ADec 15, 1992

Retractable pallet rack guard

SINCO INC83 citations91

WACO INTERNATIONAL CORP

2 patents
US4723633AFeb 9, 1988

Adjusting screw retainer

WACO INTERNATIONAL CORP29 citations91
US4549634AOct 29, 1985

Scaffold connector assembly

WACO INTERNATIONAL CORP15 citations69

DUNCAN CHARLES W

1 patent
US4962828AOct 16, 1990

Debris net/scaffolding frame lifting system

DUNCAN CHARLES W69 citations92

(unassigned)

1 patent
US5597151AJan 28, 1997

Stake puller with stake supporting back plate

20 citations82