Ronald H. Levin

Person

Lafayette, CO, US

People

Patents Grantslast 30 patents

Information Patent Grant
Electrophotographic photoreceptor having a spectral marker and elec...
- Patent number 8,178,265
- Issue date May 15, 2012
- Lexmark International, Inc.
- David Glenn Black
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Control of crazing, cracking or crystallization of a charge transpo...
- Patent number 7,955,769
- Issue date Jun 7, 2011
- Lexmark International, Inc.
- David Glenn Black
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Control of crazing, cracking or crystallization of a charge transpo...
- Patent number 7,642,027
- Issue date Jan 5, 2010
- Lexmark International, Inc.
- James Alan Hartman
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Selective removal of photoreceptor coatings by ultrasonification
- Patent number 6,881,272
- Issue date Apr 19, 2005
- Lexmark International, Inc.
- David G. Black
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Dual layer photoconductors with charge transport layer including st...
- Patent number 6,787,276
- Issue date Sep 7, 2004
- Lexmark International, Inc.
- David Glenn Black
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Charge transport layers comprising hydrazones and photoconductors i...
- Patent number 6,544,702
- Issue date Apr 8, 2003
- Lexmark International, Inc.
- Gregory Walter Haggquist
- Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
Information Patent Grant
Electrophotographic photoconductor containing fluorenyl-azine deriv...
- Patent number 6,432,597
- Issue date Aug 13, 2002
- Lexmark International, Inc.
- Gregory Walter Haggquist
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Charge generation layers comprising at least one titanate and photo...
- Patent number 6,245,471
- Issue date Jun 12, 2001
- Lexmark International, Inc.
- Ronald Harold Levin
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Charge generation layers comprising binder blends and photoconducto...
- Patent number 6,214,502
- Issue date Apr 10, 2001
- Lexmark International, Inc.
- Kasturei Rangan Srinivasan
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Preparation of triarylamines
- Patent number 6,114,583
- Issue date Sep 5, 2000
- Lexmark International, Inc.
- Mark Thomas Bellino
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Electrophotographic photoconductor containing simple quinones to im...
- Patent number 6,080,518
- Issue date Jun 27, 2000
- Lexmark International, Inc.
- Ronald Harold Levin
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Methods for making a charge generating layers comprising type I pol...
- Patent number 6,066,427
- Issue date May 23, 2000
- Lexmark International, Inc.
- David Glenn Black
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Methods of making charge generation layers containing charge transp...
- Patent number 6,022,657
- Issue date Feb 8, 2000
- Lexmark International, Inc.
- Sterritt R. Fuller
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Dual layer photoconductors with charge generation layer containing...
- Patent number 5,994,013
- Issue date Nov 30, 1999
- Lexmark International, Inc.
- Ronald Harold Levin
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Dual layer photoconductors with charge generation layer containing...
- Patent number 5,972,549
- Issue date Oct 26, 1999
- Lexmark International, Inc.
- Ronald Harold Levin
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Imaging members with improved wear characteristics
- Patent number 5,925,486
- Issue date Jul 20, 1999
- Lexmark International, Inc.
- Ronald Harold Levin
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Enhanced photoconductive oxo-titanyl phthalocyanine
- Patent number 5,895,739
- Issue date Apr 20, 1999
- Lexmark International, Inc.
- Ronald Harold Levin
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Processing which enhances photoconductivity of type I titanyl phtha...
- Patent number 5,773,184
- Issue date Jun 30, 1998
- Lexmark International, Inc.
- Sterritt Ray Fuller
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Organic positive photoconductor
- Patent number 5,571,650
- Issue date Nov 5, 1996
- Lexmark International, Inc.
- Garry D. Hinch
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Disazo photoconductor and process of manufacture of electrophotogra...
- Patent number 4,321,318
- Issue date Mar 23, 1982
- International Business Machines Corporation
- Howard W. Anderson
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY

Patents Applicationslast 30 patents

Information Patent Application
Electrophotographic Photoreceptor Having a Spectral Marker and Elec...
- Publication number 20100167191
- Publication date Jul 1, 2010
- David Glenn Black
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Control of Crazing, Cracking or Crystallization of a Charge Transpo...
- Publication number 20090202928
- Publication date Aug 13, 2009
- David Glenn Black
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Control of Crazing, Cracking or Crystallization of a Charge Transpo...
- Publication number 20080076051
- Publication date Mar 27, 2008
- James Alan Hartman
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
Long life photoconductors
- Publication number 20070134570
- Publication date Jun 14, 2007
- Lexmark International, Inc.
- James Alan Hartman
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Dual layer photoconductors with charge transport layer including st...
- Publication number 20030235770
- Publication date Dec 25, 2003
- David Glenn Black
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Selective removal of photoreceptor coatings by ultrasonification
- Publication number 20030230321
- Publication date Dec 18, 2003
- David G. Black
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Charge transfer layer with hydrazone, acetosol yellow and antioxida...
- Publication number 20020122998
- Publication date Sep 5, 2002
- Mark Thomas Bellino
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY

Ronald H. Levin

Person

Patents Grantslast 30 patents

Electrophotographic photoreceptor having a spectral marker and elec...

Control of crazing, cracking or crystallization of a charge transpo...

Control of crazing, cracking or crystallization of a charge transpo...

Selective removal of photoreceptor coatings by ultrasonification

Dual layer photoconductors with charge transport layer including st...

Charge transport layers comprising hydrazones and photoconductors i...

Electrophotographic photoconductor containing fluorenyl-azine deriv...

Charge generation layers comprising at least one titanate and photo...

Charge generation layers comprising binder blends and photoconducto...

Preparation of triarylamines

Electrophotographic photoconductor containing simple quinones to im...

Methods for making a charge generating layers comprising type I pol...

Methods of making charge generation layers containing charge transp...

Dual layer photoconductors with charge generation layer containing...

Dual layer photoconductors with charge generation layer containing...

Imaging members with improved wear characteristics

Enhanced photoconductive oxo-titanyl phthalocyanine

Processing which enhances photoconductivity of type I titanyl phtha...

Organic positive photoconductor

Disazo photoconductor and process of manufacture of electrophotogra...

Patents Applicationslast 30 patents

Electrophotographic Photoreceptor Having a Spectral Marker and Elec...

Control of Crazing, Cracking or Crystallization of a Charge Transpo...

Control of Crazing, Cracking or Crystallization of a Charge Transpo...

Long life photoconductors

Dual layer photoconductors with charge transport layer including st...

Selective removal of photoreceptor coatings by ultrasonification

Charge transfer layer with hydrazone, acetosol yellow and antioxida...