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Tuan A. Dang
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Sayre, PA, US
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Patents Grants
last 30 patents
Information
Patent Grant
Moisture resistant electroluminescent phosphor with high initial br...
Patent number
8,298,666
Issue date
Oct 30, 2012
Global Tungsten & Powders Corp.
Chen-Wen Fan
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information
Patent Grant
Ceramic-coated tungsten powder
Patent number
7,989,064
Issue date
Aug 2, 2011
Global Tungsten & Powders Corp.
Hans-Joachim Lunk
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information
Patent Grant
Moisture-resistant electroluminescent phosphor with high initial br...
Patent number
7,833,437
Issue date
Nov 16, 2010
Global Tungsten & Powders Corp.
Chen-Wen Fan
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Grant
Supported tungsten carbide material
Patent number
6,696,184
Issue date
Feb 24, 2004
Osram Sylvania Inc.
Joel B. Christian
Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
Information
Patent Grant
Supported tungsten carbide material
Patent number
6,551,569
Issue date
Apr 22, 2003
Osram Sylvania Inc.
Joel B. Christian
Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
Information
Patent Grant
Method of making long life electroluminescent phosphor
Patent number
6,309,700
Issue date
Oct 30, 2001
Osram Sylvania Inc.
Chen-Wen Fan
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Grant
Europium-activated barium magnesium silicate phosphor
Patent number
5,194,332
Issue date
Mar 16, 1993
GTE Products Corporation
Anthony F. Kasenga
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Grant
Method of improving the maintenance of a fluorescent lamp containin...
Patent number
5,185,180
Issue date
Feb 9, 1993
GTE Products Corporation
Anthony F. Kasenga
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Patents Applications
last 30 patents
Information
Patent Application
Moisture-resistant Electroluminescent Phosphor with High Initial Br...
Publication number
20070172657
Publication date
Jul 26, 2007
Osram Sylvania Inc.
Chen-Wen Fan
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information
Patent Application
Moisture-resistant Electroluminescent Phosphor with High Initial Br...
Publication number
20070172580
Publication date
Jul 26, 2007
Osram Sylvania Inc.
Chen-Wen Fan
H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information
Patent Application
Ceramic-coated Tungsten Powder
Publication number
20060199001
Publication date
Sep 7, 2006
Osram Sylvania Inc.
Hans-Joachim Lunk
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information
Patent Application
SUPPORTED TUNGSTEN CARBIDE MATERIAL
Publication number
20030077460
Publication date
Apr 24, 2003
Joel B. Christian
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL