P

Inventor

KOPKE HELMUT

DE13 patents
⚠️ This page may combine multiple inventors who share the name “KOPKE HELMUT”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

BASF AG

12 patents
US4568612AFeb 4, 1986

Magnetic recording media

BASF AG28 citations92
US4320171AMar 16, 1982

Magnetic recording media containing elastomeric polyurethane binders in the magnetic coating

BASF AG22 citations80
US4568610AFeb 4, 1986

Magnetic recording media

BASF AG8 citations73
US4567109AJan 28, 1986

Magnetic recording media

BASF AG9 citations73
US4567108AJan 28, 1986

Magnetic recording media

BASF AG11 citations73
US4091143AMay 23, 1978

Magnetic recording media

BASF AG8 citations73
US4005242AJan 25, 1977

Magnetic recording medium containing lubricants

BASF AG15 citations73
US5169721ADec 8, 1992

Magnetic recording media comprising a polyurethane binder resin containing perfluoro groups

BASF AG4 citations62
US5120608AJun 9, 1992

Magnetic recording media comprising a polyurethane binder resin containing perfluoro groups

BASF AG4 citations62
US4430362AFeb 7, 1984

Production of magnetic recording media

BASF AG2 citations62
US4059716ANov 22, 1977

Manufacture of gamma-iron(III) oxide

BASF AG4 citations62
US5064721ANov 12, 1991

Magnetic recording media

BASF AG0 citations49

BASF MAGNETICS GMBH

1 patent
US5462810AOct 31, 1995

Magnetic recording medium

BASF MAGNETICS GMBH1 citations51