Robert Gengelbach

Person

Rochester, NY, US

People

Patents Grantslast 30 patents

Information Patent Grant
Optical system
- Patent number 10,877,253
- Issue date Dec 29, 2020
- PELKA & ASSOCIATES INC.
- Benjamin A. Jacobson
- G02 - OPTICS
Information Patent Grant
Optical system for batwing distribution
- Patent number 9,557,033
- Issue date Jan 31, 2017
- Cree, Inc.
- Benjamin A. Jacobson
- G02 - OPTICS
Information Patent Grant
Side-emitting optical coupling device
- Patent number 9,287,474
- Issue date Mar 15, 2016
- Cree, Inc.
- Bernd Keller
- F21 - LIGHTING
Information Patent Grant
Side-emitting optical coupling device
- Patent number 8,541,795
- Issue date Sep 24, 2013
- Cree, Inc.
- Bernd Keller
- F21 - LIGHTING
Information Patent Grant
Back-reflecting LED light source
- Patent number 7,246,921
- Issue date Jul 24, 2007
- Illumitech, Inc.
- Benjamin A. Jacobson
- F21 - LIGHTING
Information Patent Grant
High-brightness LED-phosphor coupling
- Patent number 7,108,386
- Issue date Sep 19, 2006
- Illumitech Inc.
- Benjamin A. Jacobson
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Compact non-imaging light collector
- Patent number 7,068,446
- Issue date Jun 27, 2006
- Illumitech Inc.
- Benjamin D. Jacobson
- G02 - OPTICS
Information Patent Grant
Adjusting copy contrast and density
- Patent number 4,310,237
- Issue date Jan 12, 1982
- Eastman Kodak Company
- Robert D. Gengelbach
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY

Patents Applicationslast 30 patents

Information Patent Application
OPTICAL SYSTEM
- Publication number 20180149845
- Publication date May 31, 2018
- ILLUMITECH INC.
- Benjamin A. JACOBSON
- G02 - OPTICS
Information Patent Application
SIDE-EMITTING OPTICAL COUPLING DEVICE
- Publication number 20130342096
- Publication date Dec 26, 2013
- Cree, Inc.
- Bernd Keller
- G02 - OPTICS
Information Patent Application
Optical system for batwing distribution
- Publication number 20090225543
- Publication date Sep 10, 2009
- Cree, Inc.
- Benjamin A. Jacobson
- G02 - OPTICS
Information Patent Application
Compact non-imaging light collector
- Publication number 20070014035
- Publication date Jan 18, 2007
- Illumitech Inc.
- Benjamin D. Jacobson
- G02 - OPTICS
Information Patent Application
Side-emitting optical coupling device
- Publication number 20060076568
- Publication date Apr 13, 2006
- Cree, Inc.
- Bernd Keller
- G02 - OPTICS
Information Patent Application
Back-reflecting LED light source
- Publication number 20050168994
- Publication date Aug 4, 2005
- Illumitech Inc.
- Benjamin A. Jacobson
- F21 - LIGHTING
Information Patent Application
Compact non-imaging light collector
- Publication number 20040264004
- Publication date Dec 30, 2004
- Illumitech Inc.
- Benjamin D. Jacobson
- G02 - OPTICS
Information Patent Application
High-brightness LED-phosphor coupling
- Publication number 20040228115
- Publication date Nov 18, 2004
- Illumitech Inc.
- Benjamin A. Jacobson
- H01 - BASIC ELECTRIC ELEMENTS

Robert Gengelbach

Person

Patents Grantslast 30 patents

Optical system

Optical system for batwing distribution

Side-emitting optical coupling device

Side-emitting optical coupling device

Back-reflecting LED light source

High-brightness LED-phosphor coupling

Compact non-imaging light collector

Adjusting copy contrast and density

Patents Applicationslast 30 patents

OPTICAL SYSTEM

SIDE-EMITTING OPTICAL COUPLING DEVICE

Optical system for batwing distribution

Compact non-imaging light collector

Side-emitting optical coupling device

Back-reflecting LED light source

Compact non-imaging light collector

High-brightness LED-phosphor coupling