Manfred Melzig

Person

Wessling, DE

People

Patents Grantslast 30 patents

Information Patent Grant
Photochromic fused naphthopyrans having a benzene ring which is adj...
- Patent number 8,933,220
- Issue date Jan 13, 2015
- Rodenstock GmbH
- Manfred Melzig
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Photochromic naphthopyrans having a double-bridged terphenyl sub-unit
- Patent number 8,486,312
- Issue date Jul 16, 2013
- Rodenstock GmbH
- Manfred Melzig
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Photochromic benzopyrano-benzopyrans with further fusing
- Patent number 8,236,716
- Issue date Aug 7, 2012
- Rodenstock GmbH
- Manfred Melzig
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Photochromic spirodihydrophenanthropyrans
- Patent number 8,013,174
- Issue date Sep 6, 2011
- Rodenstock GmbH
- Udo Weigand
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Photochromic plastic object
- Patent number 7,922,941
- Issue date Apr 12, 2011
- Rodenstock GmbH
- Yven Rohlfing
- B82 - NANO-TECHNOLOGY
Information Patent Grant
Photochromic benzopyrans
- Patent number 7,892,296
- Issue date Feb 22, 2011
- Rodenstock GmbH
- Manfred Melzig
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Photochromic h-annellated benzo[f]chromene compounds
- Patent number 7,544,315
- Issue date Jun 9, 2009
- Rodenstock GmbH
- Manfred Melzig
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Photochromic naphthopyrans
- Patent number 7,459,555
- Issue date Dec 2, 2008
- Rodenstock GmbH
- Manfred Melzig
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Substituted phenanthropyrans
- Patent number 7,229,576
- Issue date Jun 12, 2007
- Rodenstock GmbH
- Claudia Mann
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Blue 3H-naphtho[2,1-b]pyran compounds and use thereof in photochrom...
- Patent number 7,229,989
- Issue date Jun 12, 2007
- Rodenstock GmbH
- Claudia Mann
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Photochromic 3H-naphtho[2,1-b]-pyran compounds and photochromic art...
- Patent number 6,967,249
- Issue date Nov 22, 2005
- Rodenstock GmbH
- Claudia Mann
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Photochromic compounds
- Patent number 6,936,725
- Issue date Aug 30, 2005
- Rodenstock GmbH
- Manfred Melzig
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
High index curable photochromic composition and its process
- Patent number 6,933,325
- Issue date Aug 23, 2005
- Rodenstock GmbH
- Qiang Zheng
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Heterocyclically annellated indenochromene derivatives
- Patent number 6,881,850
- Issue date Apr 19, 2005
- Rodenstock GmbH
- Claudia Mann
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Photochromic synthetic resin object with permanently increased cont...
- Patent number 6,853,471
- Issue date Feb 8, 2005
- Rodenstock GmbH
- Hans-Peter Sommer
- G02 - OPTICS
Information Patent Grant
H-annellated benzo[f]chromenes
- Patent number 6,686,468
- Issue date Feb 3, 2004
- Optische Werke G. Rodenstock
- Claudia Mann
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Photochromic pyran compounds
- Patent number 6,683,709
- Issue date Jan 27, 2004
- Rodenstock GmbH
- Claudia Mann
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Photochromic heterocyclically anellated indenochromene compounds
- Patent number 6,660,727
- Issue date Dec 9, 2003
- Rodenstock GmbH
- Claudia Mann
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Neutral-colored gray photochromic plastic object
- Patent number 6,373,615
- Issue date Apr 16, 2002
- Optische Werke G. Rodenstock
- Claudia Mann
- G02 - OPTICS
Information Patent Grant
Photochromic naphthopyrans
- Patent number 6,342,459
- Issue date Jan 29, 2002
- Optische Werke G. Rodenstock
- Manfred Melzig
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Photochromic spirofluorenopyran compounds
- Patent number 6,331,625
- Issue date Dec 18, 2001
- Optische Werke G. Rodenstock
- Claudia Mann
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Spirofluorenopyrans
- Patent number 6,315,928
- Issue date Nov 13, 2001
- Optische Werke G. Rodenstock
- Claudia Mann
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Photochromic plastic object
- Patent number 6,306,316
- Issue date Oct 23, 2001
- Optische Werke G. Rodenstock
- Claudia Mann
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Photochromic spirofluorenopyran compounds
- Patent number 6,225,466
- Issue date May 1, 2001
- Optische Werke G. Rodenstock
- Claudia Mann
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Diaryl-2H-naphthopyrans
- Patent number 6,190,580
- Issue date Feb 20, 2001
- Optische Werke G. Rodenstock
- Manfred Melzig
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for the production of a photochromic object
- Patent number 6,171,525
- Issue date Jan 9, 2001
- Optische Werke G. Rodenstock
- Erhard Effer
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Photochromic naphtopyrane colorants, method for the production and...
- Patent number 6,146,554
- Issue date Nov 14, 2000
- Optische Werke G. Rodenstock
- Manfred Melzig
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Photochromically colored object
- Patent number 6,102,543
- Issue date Aug 15, 2000
- Optische Werke G. Rodenstock
- Manfred Melzig
- G02 - OPTICS
Information Patent Grant
Diaryl-2H-naphthopyrans
- Patent number 6,036,890
- Issue date Mar 14, 2000
- Optische Werke G. Rodenstock
- Manfred Melzig
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Photochromic diaryl-3H-naphthopyrane
- Patent number 5,990,305
- Issue date Nov 23, 1999
- Optische Werke G. Rodenstock
- Herbert Zinner
- C07 - ORGANIC CHEMISTRY

Patents Applicationslast 30 patents

Information Patent Application
PHOTOCHROMIC FUSED NAPHTHOPYRANS HAVING A BENZENE RING WHICH IS ADJ...
- Publication number 20130310556
- Publication date Nov 21, 2013
- RODENSTOCK GMBH
- Manfred Melzig
- G02 - OPTICS
Information Patent Application
PHOTOCHROMIC BENZOPYRANO-BENZOPYRANS WITH FURTHER FUSING
- Publication number 20110201489
- Publication date Aug 18, 2011
- Manfred Melzig
- C07 - ORGANIC CHEMISTRY
Information Patent Application
PHOTOCHROMIC NAPHTHOPYRANS HAVING A DOUBLE-BRIDGED TERPHENYL SUB-UNIT
- Publication number 20110081482
- Publication date Apr 7, 2011
- Manfred Melzig
- C07 - ORGANIC CHEMISTRY
Information Patent Application
PHOTOCHROMIC BENZOPYRANS
- Publication number 20100243971
- Publication date Sep 30, 2010
- Manfred Melzig
- C07 - ORGANIC CHEMISTRY
Information Patent Application
Photochromic Spirodihydrophenanthropyrans
- Publication number 20080262248
- Publication date Oct 23, 2008
- Rodenstock GmbH
- Udo WEIGAND
- C07 - ORGANIC CHEMISTRY
Information Patent Application
Photochromic Plastic Object
- Publication number 20080251772
- Publication date Oct 16, 2008
- Rodenstock GmbH
- Yven Rohlfing
- G02 - OPTICS
Information Patent Application
Photochromic h-annellated benzo[f]chromene compounds
- Publication number 20070246692
- Publication date Oct 25, 2007
- Rodenstock GmbH
- Manfred Melzig
- C07 - ORGANIC CHEMISTRY
Information Patent Application
Substituted phenanthropyrans
- Publication number 20060219990
- Publication date Oct 5, 2006
- Rodenstock GmbH
- Claudia Mann
- C07 - ORGANIC CHEMISTRY
Information Patent Application
Neutral-color gray photochromic synthetic resin article
- Publication number 20060011898
- Publication date Jan 19, 2006
- Rodenstock GmbH
- Manfred Melzig
- G02 - OPTICS
Information Patent Application
Blue 3H-naphtho[2,1-b]pyran compounds and use thereof in photochrom...
- Publication number 20050096467
- Publication date May 5, 2005
- Rodenstock GmbH
- Claudia Mann
- C07 - ORGANIC CHEMISTRY
Information Patent Application
Photochromic 3H-naphtho[2,1-b]-pyran compounds and photochromic art...
- Publication number 20040267013
- Publication date Dec 30, 2004
- Rodenstock GmbH
- Claudia Mann
- C07 - ORGANIC CHEMISTRY
Information Patent Application
Heterocyclically annellated indenochromene derivatives
- Publication number 20040092743
- Publication date May 13, 2004
- Optische Werke G. Rodenstock
- Claudia Mann
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
High index curable photochromic composition and its process
- Publication number 20030158284
- Publication date Aug 21, 2003
- Qiang Zheng
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
Photochromic compounds
- Publication number 20030045714
- Publication date Mar 6, 2003
- Manfred Melzig
- C07 - ORGANIC CHEMISTRY
Information Patent Application
H-annellated benzo[f]chromenes
- Publication number 20030040623
- Publication date Feb 27, 2003
- Claudia Mann
- C07 - ORGANIC CHEMISTRY
Information Patent Application
Photochromic pyran compounds
- Publication number 20020169315
- Publication date Nov 14, 2002
- Claudia Mann
- C07 - ORGANIC CHEMISTRY
Information Patent Application
Photochromic synthetic resin object with permanently increased cont...
- Publication number 20020118431
- Publication date Aug 29, 2002
- Hans-Peter Sommer
- G02 - OPTICS
Information Patent Application
Photochromic naphthopyrans
- Publication number 20020052499
- Publication date May 2, 2002
- Optische Werke G. Rodenstock
- Manfred Melzig
- C07 - ORGANIC CHEMISTRY

Manfred Melzig

Person

Patents Grantslast 30 patents

Photochromic fused naphthopyrans having a benzene ring which is adj...

Photochromic naphthopyrans having a double-bridged terphenyl sub-unit

Photochromic benzopyrano-benzopyrans with further fusing

Photochromic spirodihydrophenanthropyrans

Photochromic plastic object

Photochromic benzopyrans

Photochromic h-annellated benzo[f]chromene compounds

Photochromic naphthopyrans

Substituted phenanthropyrans

Blue 3H-naphtho[2,1-b]pyran compounds and use thereof in photochrom...

Photochromic 3H-naphtho[2,1-b]-pyran compounds and photochromic art...

Photochromic compounds

High index curable photochromic composition and its process

Heterocyclically annellated indenochromene derivatives

Photochromic synthetic resin object with permanently increased cont...

H-annellated benzo&#x0005B;f&#x0005D;chromenes

Photochromic pyran compounds

Photochromic heterocyclically anellated indenochromene compounds

Neutral-colored gray photochromic plastic object

Photochromic naphthopyrans

Photochromic spirofluorenopyran compounds

Spirofluorenopyrans

Photochromic plastic object

Photochromic spirofluorenopyran compounds

Diaryl-2H-naphthopyrans

Process for the production of a photochromic object

Photochromic naphtopyrane colorants, method for the production and...

Photochromically colored object

Diaryl-2H-naphthopyrans

Photochromic diaryl-3H-naphthopyrane

Patents Applicationslast 30 patents

PHOTOCHROMIC FUSED NAPHTHOPYRANS HAVING A BENZENE RING WHICH IS ADJ...

PHOTOCHROMIC BENZOPYRANO-BENZOPYRANS WITH FURTHER FUSING

PHOTOCHROMIC NAPHTHOPYRANS HAVING A DOUBLE-BRIDGED TERPHENYL SUB-UNIT

PHOTOCHROMIC BENZOPYRANS

Photochromic Spirodihydrophenanthropyrans

Photochromic Plastic Object

Photochromic h-annellated benzo[f]chromene compounds

Substituted phenanthropyrans

Neutral-color gray photochromic synthetic resin article

Blue 3H-naphtho[2,1-b]pyran compounds and use thereof in photochrom...

Photochromic 3H-naphtho[2,1-b]-pyran compounds and photochromic art...

Heterocyclically annellated indenochromene derivatives

High index curable photochromic composition and its process

Photochromic compounds

H-annellated benzo[f]chromenes

Photochromic pyran compounds

Photochromic synthetic resin object with permanently increased cont...

Photochromic naphthopyrans

H-annellated benzo[f]chromenes