Inventor

LETSCHERT HANS-PETER

DE11 patents

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

CERDEC AG

5 patents

US5766336AJun 16, 1998

Colored pigments based on oxide-nitrides, the preparation and use thereof

CERDEC AG17 citations83

US5693102ADec 2, 1997

Oxonitrides of the formula LnTaON2 with enhanced brightness and a process for their use

CERDEC AG9 citations73

US5439660AAug 8, 1995

Oxonitrides of the formula LnTaOn2 with enhanced brightness and a process for their production and use

CERDEC AG15 citations73

US6004391ADec 21, 1999

Pigments for the production of purple ceramic decoration, process for the production thereof and use thereof

CERDEC AG13 citations65

US6235103B1May 22, 2001

Tantalum (V) nitride pigments, process for the production thereof and use thereof

CERDEC AG5 citations57

DEGUSSA

2 patents

US5569322AOct 29, 1996

Process for using tantalum (V) nitride as a pigment and the colored products produced thereby

DEGUSSA7 citations73

US5376349ADec 27, 1994

Method of producing tantalum (V) nitride

DEGUSSA8 citations73

2 DMC

2 patents

US6294009B1Sep 25, 2001

Tantalum (V) nitride pigment, process for producing it and its use

2 DMC13 citations68

US6379449B1Apr 30, 2002

Process for the production of yellow to red pigments based on nitrides and oxidenitrides

2 DMC3 citations59

FERRO CORP

1 patent

US9187617B1Nov 17, 2015

Nickel-free green pigment

FERRO CORP3 citations61

FERRO GMBH

1 patent

US6673473B2Jan 6, 2004

Display screen, in particular a color display screen, coating of the same and means for producing the coating

FERRO GMBH4 citations61