Udo Weigand

Person

Munchen, DE

People

Patents Grantslast 30 patents

Information Patent Grant
Photochromic annelated naphthopyrane systems with special substitue...
- Patent number 11,965,102
- Issue date Apr 23, 2024
- Rodenstock GmbH
- Udo Weigand
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Photochromic multiple ring-fused naphthopyrans having extreme longw...
- Patent number 10,647,852
- Issue date May 12, 2020
- Rodenstock GmbH
- Udo Weigand
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
UV-curing-compatible photochromic fused naphthopyrans
- Patent number 10,077,274
- Issue date Sep 18, 2018
- Rodenstock GmbH
- Udo Weigand
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Photochromic fluorenopyrans with defined dibenzo[B,D]pyrano fused a...
- Patent number 9,963,574
- Issue date May 8, 2018
- Rodenstock GmbH
- Udo Weigand
- G02 - OPTICS
Information Patent Grant
Photochromic double-fused naphthopyrans
- Patent number 9,151,872
- Issue date Oct 6, 2015
- Rodenstock GmbH
- Udo Weigand
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Photochromic bis-idenofused naphthopryans
- Patent number 8,987,477
- Issue date Mar 24, 2015
- Rodenstock GmbH
- Udo Weigand
- C07 - ORGANIC CHEMISTRY
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
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
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
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

Patents Applicationslast 30 patents

Information Patent Application
PHOTOCHROMIC ANNELATED NAPHTHOPYRANE SYSTEMS WITH SPECIAL SUBSTITUE...
- Publication number 20210253865
- Publication date Aug 19, 2021
- RODENSTOCK GMBH
- Udo WEIGAND
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Application
PHOTOCHROMIC MULTIPLE RING-FUSED NAPHTHOPYRANS HAVING EXTREME LONGW...
- Publication number 20190284397
- Publication date Sep 19, 2019
- Rodenstock GmbH
- Udo WEIGAND
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Application
UV-CURING-COMPATIBLE PHOTOCHROMIC FUSED NAPHTHOPYRANS
- Publication number 20160152629
- Publication date Jun 2, 2016
- Udo WEIGAND
- C07 - ORGANIC CHEMISTRY
Information Patent Application
PHOTOCHROMIC FLUORENOPYRANS WITH DEFINED DIBENZO[B,D]PYRANO FUSED A...
- Publication number 20150152246
- Publication date Jun 4, 2015
- Udo Weigand
- G02 - OPTICS
Information Patent Application
Photochromic Bis-Idenofused Naphthopryans
- Publication number 20140330028
- Publication date Nov 6, 2014
- Udo Weigand
- G02 - OPTICS
Information Patent Application
Photochromic Double-Fused Naphthopyrans
- Publication number 20140235876
- Publication date Aug 21, 2014
- Udo Weigand
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
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
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 naphthopyrans
- Publication number 20020052499
- Publication date May 2, 2002
- Optische Werke G. Rodenstock
- Manfred Melzig
- C07 - ORGANIC CHEMISTRY

Udo Weigand

Person

Patents Grantslast 30 patents

Photochromic annelated naphthopyrane systems with special substitue...

Photochromic multiple ring-fused naphthopyrans having extreme longw...

UV-curing-compatible photochromic fused naphthopyrans

Photochromic fluorenopyrans with defined dibenzo[B,D]pyrano fused a...

Photochromic double-fused naphthopyrans

Photochromic bis-idenofused naphthopryans

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...

Heterocyclically annellated indenochromene derivatives

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

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

Patents Applicationslast 30 patents

PHOTOCHROMIC ANNELATED NAPHTHOPYRANE SYSTEMS WITH SPECIAL SUBSTITUE...

PHOTOCHROMIC MULTIPLE RING-FUSED NAPHTHOPYRANS HAVING EXTREME LONGW...

UV-CURING-COMPATIBLE PHOTOCHROMIC FUSED NAPHTHOPYRANS

PHOTOCHROMIC FLUORENOPYRANS WITH DEFINED DIBENZO[B,D]PYRANO FUSED A...

Photochromic Bis-Idenofused Naphthopryans

Photochromic Double-Fused Naphthopyrans

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

H-annellated benzo[f]chromenes

Photochromic pyran compounds

Photochromic naphthopyrans

H-annellated benzo[f]chromenes