Inventor
SPEER DIETRICH
DE26 patents
⚠️ This page may combine multiple inventors who share the name “SPEER DIETRICH”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
DEGUSSA
15 patentsUS5008223AApr 16, 1991
Grayish-black encapsulated pigments and method of their production
DEGUSSA23 citations91
US5043016AAug 27, 1991
Brown to gray inclusion pigments and method of their production
DEGUSSA10 citations74
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
US5254162AOct 19, 1993
Brown spinel pigments based on zinc chromite, method of their production and use
DEGUSSA13 citations73
US5205866AApr 27, 1993
Method for making grey-black inclusion pigments
DEGUSSA7 citations73
US5194089AMar 16, 1993
Coated spinel color pigments, process for their production and use
DEGUSSA15 citations73
US5252125AOct 12, 1993
Inclusion pigments of zirconium silicate formed with spinel inclusions, a process for the preparation and use thereof
DEGUSSA8 citations71
US5389402AFeb 14, 1995
Method of producing decorations which are color-stable in a porcelain firing and a pigment composition suitable therefor
DEGUSSA7 citations67
US5035746AJul 30, 1991
Biege-brown encapsulated pigments and method of their production
DEGUSSA2 citations63
US5021092AJun 4, 1991
Method for the preparation of gray-green pigments based on zirconium silicate/vanadium compounds and sodium compound
DEGUSSA5 citations63
US5019169AMay 28, 1991
Gray-black encapsulated pigments and method for their preparation
DEGUSSA3 citations63
US5252126AOct 12, 1993
Neutral blue zirconium-vanadium pigments
DEGUSSA5 citations62
US5330571AJul 19, 1994
Inclusion pigments of zirconium silicate with included chromic oxide, a process for the preparation and use thereof
DEGUSSA3 citations60
US5000865AMar 19, 1991
Method for the production of alkaline-earth ferrites and lead ferrites for memory cores
DEGUSSA0 citations51
CERDEC AG
6 patentsUS5693102ADec 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
US6077797AJun 20, 2000
Green decoration coloring substance for high-temperature firing, process for its production and use thereof
CERDEC AG14 citations69
US6063446AMay 16, 2000
Process for the production of decorated tableware with increased resistance to scratches caused by cutlery and coloring substance therefor
CERDEC AG4 citations59
US6103312AAug 15, 2000
Process for the production of decorated tableware with increased resistance to scratches caused by cutlery
CERDEC AG2 citations57
US6174359B1Jan 16, 2001
Ceramic decoration coloring substances with increased color saturation comprising zirconium pigments, process for their production and their use
CERDEC AG1 citations49
AXTELL III ENOS A
2 patentsUS8946102B2Feb 3, 2015
Copper red frits and pigments comprising silica and at least one of cupric oxide and cuprous oxide
AXTELL III ENOS A5 citations79
US9334189B2May 10, 2016
Copper red frits and pigments comprising silica and at least one of cupric oxide and cuprous oxide
AXTELL III ENOS A2 citations58