Mark E. Duffy

Person

Shaker Hts., OH, US

People

Patents Grantslast 30 patents

Information Patent Grant
Lighting control system with improved efficiency
- Patent number 8,633,653
- Issue date Jan 21, 2014
- General Electric Company
- Mark Duffy
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Hospital lighting with solid state emitters
- Patent number 8,405,324
- Issue date Mar 26, 2013
- General Electric Company
- William Winder Beers
- F21 - LIGHTING
Information Patent Grant
Shrouded electric lamp having functionally distinguishable center s...
- Patent number 6,741,013
- Issue date May 25, 2004
- General Electric Company
- James Thomas Dakin
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Crimp length gauge for ceramic metal halide electrodes
- Patent number 5,879,215
- Issue date Mar 9, 1999
- General Electric Company
- Mark E. Duffy
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Arctube for high pressure discharge lamp
- Patent number 5,866,982
- Issue date Feb 2, 1999
- General Electric Company
- Curtis E. Scott
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Patterned optical interference coatings for electric lamps
- Patent number 5,676,579
- Issue date Oct 14, 1997
- General Electric Company
- Thomas G. Parham
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Lamp-to-light guide coupling arrangement for an electrodeless high...
- Patent number 5,675,677
- Issue date Oct 7, 1997
- General Electric Company
- John M. Davenport
- G02 - OPTICS
Information Patent Grant
Patterned optical interference coatings for only a portion of a hig...
- Patent number 5,587,626
- Issue date Dec 24, 1996
- General Electric Company
- Thomas G. Parham
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Simulated load circuit for simulating the arc impedance of an elect...
- Patent number 5,479,102
- Issue date Dec 26, 1995
- General Electric Company
- Sayed-Amr A. El-Hamamsy
- G01 - MEASURING TESTING
Information Patent Grant
Low mercury arc discharge lamp containing neodymium
- Patent number 5,479,072
- Issue date Dec 26, 1995
- General Electric Company
- James T. Dakin
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Base for electrodeless discharge lamp
- Patent number 5,440,199
- Issue date Aug 8, 1995
- General Electric Company
- Raymond A. Heindl
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Luminaire including an electrodeless discharge lamp as a light source
- Patent number 5,378,965
- Issue date Jan 3, 1995
- General Electric Company
- James T. Dakin
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Electrodeless arc tube with stabilized condensate location
- Patent number 5,373,216
- Issue date Dec 13, 1994
- General Electric Company
- James T. Dakin
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Low mercury arc discharge lamp containing praseodymium
- Patent number 5,363,015
- Issue date Nov 8, 1994
- General Electric Company
- James T. Dakin
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Method for measuring the impedance of an electrodeless arc discharg...
- Patent number 5,332,970
- Issue date Jul 26, 1994
- General Electric Company
- Sayed-Amr A. El-Hamamsy
- G01 - MEASURING TESTING
Information Patent Grant
Acoustic resonance arc stabilization arrangement in a discharge lamp
- Patent number 5,306,987
- Issue date Apr 26, 1994
- General Electric Company
- James T. Dakin
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Starting aid for an electrodeless high intensity discharge lamp
- Patent number 5,248,918
- Issue date Sep 28, 1993
- General Electric Company
- James T. Dakin
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Low-loss L-C drive circuit for an electrodeless high intensity disc...
- Patent number 5,214,357
- Issue date May 25, 1993
- General Electric Company
- James T. Dakin
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Self-extinguishing gas probe starter for an electrodeless high inte...
- Patent number 5,151,633
- Issue date Sep 29, 1992
- General Electric Company
- George A. Farrall
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Electrodeless high intensity discharge lamp having an intergral qua...
- Patent number 5,150,015
- Issue date Sep 22, 1992
- General Electric Company
- Raymond A. Heindl
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Starting aid for an electrodeless high intensity discharge lamp
- Patent number 5,140,227
- Issue date Aug 18, 1992
- General Electric Company
- James T. Dakin
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Gas probe starter for an electrodeless high intensity discharge lamp
- Patent number 5,095,249
- Issue date Mar 10, 1992
- General Electric Company
- Victor D. Roberts
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Arc discharge lamp having improved performance
- Patent number 4,891,554
- Issue date Jan 2, 1990
- General Electric Company
- Victor A. Levand
- H01 - BASIC ELECTRIC ELEMENTS

Patents Applicationslast 30 patents

Information Patent Application
HOSPITAL LIGHTING WITH SOLID STATE EMITTERS
- Publication number 20110309773
- Publication date Dec 22, 2011
- General Electric Company
- William Winder Beers
- F21 - LIGHTING
Information Patent Application
LIGHTING CONTROL SYSTEM WITH IMPROVED EFFICIENCY
- Publication number 20110215730
- Publication date Sep 8, 2011
- General Electric Company
- Mark Duffy
- Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information Patent Application
Electric lamp with shroud
- Publication number 20020070644
- Publication date Jun 13, 2002
- General Electric Company
- James Thomas Dakin
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Outer seals for shrink-sealed metal halide arc tubes
- Publication number 20010024089
- Publication date Sep 27, 2001
- Mark E. Duffy
- H01 - BASIC ELECTRIC ELEMENTS

Mark E. Duffy

Person

Patents Grantslast 30 patents

Lighting control system with improved efficiency

Hospital lighting with solid state emitters

Shrouded electric lamp having functionally distinguishable center s...

Crimp length gauge for ceramic metal halide electrodes

Arctube for high pressure discharge lamp

Patterned optical interference coatings for electric lamps

Lamp-to-light guide coupling arrangement for an electrodeless high...

Patterned optical interference coatings for only a portion of a hig...

Simulated load circuit for simulating the arc impedance of an elect...

Low mercury arc discharge lamp containing neodymium

Base for electrodeless discharge lamp

Luminaire including an electrodeless discharge lamp as a light source

Electrodeless arc tube with stabilized condensate location

Low mercury arc discharge lamp containing praseodymium

Method for measuring the impedance of an electrodeless arc discharg...

Acoustic resonance arc stabilization arrangement in a discharge lamp

Starting aid for an electrodeless high intensity discharge lamp

Low-loss L-C drive circuit for an electrodeless high intensity disc...

Self-extinguishing gas probe starter for an electrodeless high inte...

Electrodeless high intensity discharge lamp having an intergral qua...

Starting aid for an electrodeless high intensity discharge lamp

Gas probe starter for an electrodeless high intensity discharge lamp

Arc discharge lamp having improved performance

Patents Applicationslast 30 patents

HOSPITAL LIGHTING WITH SOLID STATE EMITTERS

LIGHTING CONTROL SYSTEM WITH IMPROVED EFFICIENCY

Electric lamp with shroud

Outer seals for shrink-sealed metal halide arc tubes