Inventor

HARDTL KARL-HEINZ

DE4 patents

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

HERAEUS ELECTRO NITE INT

1 patent

US5972296AOct 26, 1999

Oxygen sensors made of alkaline-earth-doped lanthanum ferrites and method of use thereof

HERAEUS ELECTRO NITE INT12 citations71

ROTH TECHNIK GMBH

1 patent

US5843858ADec 1, 1998

Oxygen sensors made of alkaline-earth-doped lanthanum ferrites

ROTH TECHNIK GMBH11 citations70

PHILIPS CORP

1 patent

US3990770ANov 9, 1976

Electro-optic picture display and memory device

PHILIPS CORP12 citations64

ROTH TECKNIK GMBH & CO FORSCHU

1 patent

US5279855AJan 18, 1994

Manufacture of inert, catalytic or gas-sensitive ceramic layers for gas sensors

ROTH TECKNIK GMBH & CO FORSCHU3 citations55