Udo Eckstein

Person

Koeln, DE

People

Patents Grantslast 30 patents

Information Patent Grant
Optically brightened plastics for optically brightening paper-coati...
- Patent number 6,387,296
- Issue date May 14, 2002
- Bayer Aktiengesellschaft
- Udo Eckstein
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Whitened polymers and the use thereof in coating slips for coating...
- Patent number 6,339,117
- Issue date Jan 15, 2002
- Bayer Aktiengesellschaft
- Udo Eckstein
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Process for preparing bis-alkoxy-triazinyl-amino-containing stilben...
- Patent number 6,248,887
- Issue date Jun 19, 2001
- Bayer Aktiengesellschaft
- Ulrich Feldhues
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for preparing substituted 4,4'-diaminostilbene-2,2'-disulph...
- Patent number 6,121,444
- Issue date Sep 19, 2000
- Bayer Aktiengesellschaft
- Ulrich Feldhues
- D06 - TREATMENT OF TEXTILES OR THE LIKE LAUNDERING FLEXIBLE MATERIALS NOT OTH...
Information Patent Grant
Process for the preparation of substituted 4,4'-diaminostilbene-2,2...
- Patent number 6,025,490
- Issue date Feb 15, 2000
- Bayer Aktiengesellschaft
- Ulrich Feldhues
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Triarylmethane color formers
- Patent number 5,233,048
- Issue date Aug 3, 1993
- Bayer Aktiengesellschaft
- Udo Eckstein
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Bis(triarylmethane) compounds
- Patent number 5,189,188
- Issue date Feb 23, 1993
- Bayer Aktiengesellschaft
- Udo Eckstein
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Triarylmethane color formers
- Patent number 5,097,034
- Issue date Mar 17, 1992
- Bayer Aktiengesellschaft
- Udo Eckstein
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Triarylmethane color-forming agents
- Patent number 5,094,688
- Issue date Mar 10, 1992
- Bayer Aktiengesellschaft
- Udo Eckstein
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Highly concentrated stable solutions of color-forming agent: for pr...
- Patent number 4,923,641
- Issue date May 8, 1990
- Bayer Aktiengesellschaft
- Udo Eckstein
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Tri-phenyl methyl color-forming agents
- Patent number 4,897,223
- Issue date Jan 30, 1990
- Bayer Aktiengesellschaft
- Udo Eckstein
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Paper-coating slips containing fluorescent brighteners
- Patent number 4,888,128
- Issue date Dec 19, 1989
- Bayer Aktiengesellschaft
- Jochen Koll
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Chromogenic phthalides
- Patent number 4,812,569
- Issue date Mar 14, 1989
- Bayer Aktiengesellschaft
- Udo Eckstein
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Highly concentrated stable solutions of color-forming agents: for p...
- Patent number 4,783,196
- Issue date Nov 8, 1988
- Bayer Aktiengesellshcaft
- Udo Eckstein
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Dyestuff laser
- Patent number 4,670,882
- Issue date Jun 2, 1987
- Bayer Aktiengesellschaft
- Helmut Telle
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Distyryl compounds
- Patent number 4,610,807
- Issue date Sep 9, 1986
- Bayer Aktiengesellschaft
- Wolfgang Brinkwerth
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for the preparation of .DELTA..sup.4 -1,3,4-oxadiazolin-2-o...
- Patent number 4,563,532
- Issue date Jan 7, 1986
- Bayer Aktiengesellschaft
- Udo Eckstein
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Water-insoluble azolystyryl optical brighteners
- Patent number 4,510,311
- Issue date Apr 9, 1985
- Bayer Aktiengesellschaft
- Udo Eckstein
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Triazolyl coumarin compounds, processes for their preparation and t...
- Patent number 4,326,066
- Issue date Apr 20, 1982
- Bayer Aktiengesellschaft
- Udo Eckstein
- D06 - TREATMENT OF TEXTILES OR THE LIKE LAUNDERING FLEXIBLE MATERIALS NOT OTH...
Information Patent Grant
Distyryl compounds
- Patent number 4,317,782
- Issue date Mar 2, 1982
- Bayer Aktiengesellschaft
- Udo Eckstein
- D06 - TREATMENT OF TEXTILES OR THE LIKE LAUNDERING FLEXIBLE MATERIALS NOT OTH...
Information Patent Grant
Fluorescent dyestuffs
- Patent number 4,184,977
- Issue date Jan 22, 1980
- Bayer Aktiengesellschaft
- Udo Eckstein
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Fluorescent dyestuffs
- Patent number 4,166,176
- Issue date Aug 28, 1979
- Bayer Aktiengesellschaft
- Udo Eckstein
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Triazinyl styryl-benzoxazole fluorescent dyestuffs
- Patent number 4,140,852
- Issue date Feb 20, 1979
- Bayer Aktiengesellschaft
- Udo Eckstein
- C07 - ORGANIC CHEMISTRY

Patents Applicationslast 30 patents

Information Patent Application
WHITENED POLYMERS AND THE USE THEREOF IN COATING SLIPS FOR COATING...
- Publication number 20010009938
- Publication date Jul 26, 2001
- UDO ECKSTEIN
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE

Udo Eckstein

Person

Patents Grantslast 30 patents

Optically brightened plastics for optically brightening paper-coati...

Whitened polymers and the use thereof in coating slips for coating...

Process for preparing bis-alkoxy-triazinyl-amino-containing stilben...

Process for preparing substituted 4,4'-diaminostilbene-2,2'-disulph...

Process for the preparation of substituted 4,4'-diaminostilbene-2,2...

Triarylmethane color formers

Bis(triarylmethane) compounds

Triarylmethane color formers

Triarylmethane color-forming agents

Highly concentrated stable solutions of color-forming agent: for pr...

Tri-phenyl methyl color-forming agents

Paper-coating slips containing fluorescent brighteners

Chromogenic phthalides

Highly concentrated stable solutions of color-forming agents: for p...

Dyestuff laser

Distyryl compounds

Process for the preparation of .DELTA..sup.4 -1,3,4-oxadiazolin-2-o...

Water-insoluble azolystyryl optical brighteners

Triazolyl coumarin compounds, processes for their preparation and t...

Distyryl compounds

Fluorescent dyestuffs

Fluorescent dyestuffs

Triazinyl styryl-benzoxazole fluorescent dyestuffs

Patents Applicationslast 30 patents

WHITENED POLYMERS AND THE USE THEREOF IN COATING SLIPS FOR COATING...