Inventor

WITSCHI HEINZ

CH8 patents

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

WITSCHI H

2 patents

US4506481AMar 26, 1985

Element moulding of metal mesh

WITSCHI H12 citations71

US4338757AJul 13, 1982

Device for connecting a structure with a wall to be poured with concrete

WITSCHI H13 citations71

BAU BOX EWIAG

1 patent

US4959940AOct 2, 1990

Cantilever plate connecting assembly

BAU BOX EWIAG87 citations92

POLYDRAIN INC

1 patent

US4621939ANov 11, 1986

Drainage channel

POLYDRAIN INC69 citations92

ABT INC

1 patent

US5110235AMay 5, 1992

Locking component for securing a cover on a frame

ABT INC27 citations91

FANKHAUSER PETER

1 patent

US4578916AApr 1, 1986

Connecting and pressure-distributing element for concrete structural members

FANKHAUSER PETER49 citations90

THOMANN ROLAND

1 patent

US4630962ADec 23, 1986

Drainage channel with locking grate

THOMANN ROLAND42 citations87

Innotech AG

1 patent

USD316872SMay 14, 1991

Ring binder

Innotech AG9 citations68