David Hrubowchak

Person

Litchfield, NH, US

People

Patents Grantslast 30 patents

Information Patent Grant
High pressure discharge lamp with multiple arc tubes
- Patent number 9,030,099
- Issue date May 12, 2015
- Osram Sylvania Inc.
- Domenic Checca
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Strengthened arc discharge lamp
- Patent number 7,839,066
- Issue date Nov 23, 2010
- Osram Sylvania Inc.
- David Hrubowchak
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Shrouded arc discharge lamp suitable for downlighting applications
- Patent number 7,615,930
- Issue date Nov 10, 2009
- Osram Sylvania Inc.
- David M. Hrubowchak
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Starting aid for low wattage metal halide lamps
- Patent number 7,301,283
- Issue date Nov 27, 2007
- Osram Sylvania Inc.
- Susan L. Callahan
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Envelope for a light bulb
- Patent number D543289
- Issue date May 22, 2007
- Osram Sylvania Inc.
- David M. Hrubowchak
- D26 - Lighting
Information Patent Grant
Light bulb
- Patent number D540961
- Issue date Apr 17, 2007
- Osram Sylvania Inc.
- David M. Hrubowchak
- D26 - Lighting
Information Patent Grant
High CRI metal halide lamp with constant color throughout life
- Patent number 6,469,445
- Issue date Oct 22, 2002
- Osram Sylvania Inc.
- Edward H. Nortrup
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Heavily loaded double-ended arc lamp
- Patent number 5,486,737
- Issue date Jan 23, 1996
- Osram Sylvania Inc.
- David M. Hrubowchak
- H01 - BASIC ELECTRIC ELEMENTS

Patents Applicationslast 30 patents

Information Patent Application
HIGH PRESSURE DISCHARGE LAMP WITH MULTIPLE ARC TUBES
- Publication number 20140333192
- Publication date Nov 13, 2014
- Osram Sylvania Inc.
- Domenic Checca
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Electric hid lamp
- Publication number 20070296340
- Publication date Dec 27, 2007
- David M. Hrubowchak
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Strengthened arc discharge lamp
- Publication number 20060158083
- Publication date Jul 20, 2006
- David Hrubowchak
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Multi-position hid lamp with single getter
- Publication number 20030127978
- Publication date Jul 10, 2003
- David Hrubowchak
- H01 - BASIC ELECTRIC ELEMENTS

David Hrubowchak

Person

Patents Grantslast 30 patents

High pressure discharge lamp with multiple arc tubes

Strengthened arc discharge lamp

Shrouded arc discharge lamp suitable for downlighting applications

Starting aid for low wattage metal halide lamps

Envelope for a light bulb

Light bulb

High CRI metal halide lamp with constant color throughout life

Heavily loaded double-ended arc lamp

Patents Applicationslast 30 patents

HIGH PRESSURE DISCHARGE LAMP WITH MULTIPLE ARC TUBES

Electric hid lamp

Strengthened arc discharge lamp

Multi-position hid lamp with single getter