Inventor
GINGERICH RICHARD G W
34 patents
⚠️ This page may combine multiple inventors who share the name “GINGERICH RICHARD G W”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
OSRAM SYLVANIA INC
17 patentsUS5985175ANov 16, 1999
Boron oxide coated phosphor and method of making same
OSRAM SYLVANIA INC43 citations92
US6309700B1Oct 30, 2001
Method of making long life electroluminescent phosphor
OSRAM SYLVANIA INC25 citations89
US6702959B2Mar 9, 2004
Long life, white light emitting electroluminescent phosphor
OSRAM SYLVANIA INC8 citations74
US6171650B1Jan 9, 2001
Moisture insensitive electroluminescent phosphor
OSRAM SYLVANIA INC6 citations74
US5676917AOct 14, 1997
Synthesis of beta phase spherical calcium pyrophosphate powder
OSRAM SYLVANIA INC9 citations68
US6960556B2Nov 1, 2005
Spherical tungsten disulfide powder
OSRAM SYLVANIA INC4 citations63
US6395196B1May 28, 2002
Process for producing electroluminescent phosphor with extended half-life
OSRAM SYLVANIA INC2 citations63
US6364951B1Apr 2, 2002
Moisture insensitive electroluminescent phosphor
OSRAM SYLVANIA INC2 citations63
US6849297B1Feb 1, 2005
Encapsulated long life electroluminescent phosphor
OSRAM SYLVANIA INC4 citations62
US6426115B1Jul 30, 2002
Method for making high-efficacy and long life electroluminescent phosphor
OSRAM SYLVANIA INC2 citations62
US6361864B1Mar 26, 2002
Method for making high-efficacy and long life electroluminescent phophor
OSRAM SYLVANIA INC4 citations62
US6562260B2May 13, 2003
Recovery of electroluminescsent phosphor from encapsulated material
OSRAM SYLVANIA INC2 citations56
US6623807B2Sep 23, 2003
Stabilization of color in heated electroluminescent phosphor
OSRAM SYLVANIA INC0 citations52
US6569357B2May 27, 2003
Method of making electroluminescent phosphor
OSRAM SYLVANIA INC0 citations52
US6113808ASep 5, 2000
Electroluminescent phosphor with extended life and method of making same
OSRAM SYLVANIA INC1 citations52
US6686043B1Feb 3, 2004
Method for making long-life electroluminescent phosphor
OSRAM SYLVANIA INC1 citations51
US5503769AApr 2, 1996
Method of making an unactivated yttrium tantalate x-ray phosphor
OSRAM SYLVANIA INC0 citations48
GTE PROD CORP
16 patentsUS4859361AAug 22, 1989
Process for producing electroluminescent phosphors of improved brightness
GTE PROD CORP49 citations92
US5009808AApr 23, 1991
Process for producing electroluminescent yellow zinc sulfide phosphors
GTE PROD CORP29 citations91
US4348224ASep 7, 1982
Method for producing cobalt metal powder
GTE PROD CORP25 citations82
US4218240AAug 19, 1980
Method for producing cobaltic hexammine compounds and cobalt metal powder
GTE PROD CORP29 citations82
US4395278AJul 26, 1983
Method for producing cobalt metal powder
GTE PROD CORP12 citations74
US4278463AJul 14, 1981
Process for recovering cobalt
GTE PROD CORP17 citations74
US5417945AMay 23, 1995
Process for recovering tungsten as an ammoniacal tungstate compound in which ammoniacal tungstate liquors are reclaimed
GTE PROD CORP9 citations73
US4397690AAug 9, 1983
Process for recovering gold
GTE PROD CORP7 citations73
US4329169AMay 11, 1982
Method for producing cobalt metal powder
GTE PROD CORP11 citations73
US4214894AJul 29, 1980
Method for producing cobalt metal powder
GTE PROD CORP11 citations73
US4925593AMay 15, 1990
Method for producing cadmium free green emitting CRT phosphor
GTE PROD CORP11 citations70
US4897217AJan 30, 1990
Method for producing alkaline earth halophosphate stir-in phosphors
GTE PROD CORP9 citations70
US5525259AJun 11, 1996
Europium-doped yttrium oxide phosphor
GTE PROD CORP9 citations69
US4690710ASep 1, 1987
Process for producing cobalt metal powder
GTE PROD CORP4 citations63
US4608235AAug 26, 1986
Recovery of cobalt
GTE PROD CORP4 citations63
US4826622AMay 2, 1989
Method of making alkaline earth halophosphate phosphor
GTE PROD CORP3 citations55