Duffy, Mark E.

Patent Applications and Registrations

Patent applications and USPTO patent grants for Duffy, Mark E..The latest application filed is for "outer seals for shrink-sealed metal halide arc tubes".

Company Profile

0.10.1

Duffy, Mark E. - Shaker Hts. OH
Duffy; Mark E. - Shaker Heights OH

*profile and listings may contain filings by different individuals or companies with the same name. Review application materials to confirm ownership/assignment.

Patent Activity

Patent	Date
Outer seals for shrink-sealed metal halide arc tubes App 20010024089 - Duffy, Mark E. ; et al.	2001-09-27
Lamp-to-light guide coupling arrangement for an electrodeless high intensity discharge lamp Grant 5,675,677 - Davenport , et al. October 7, 1	1997-10-07
Patterned optical interference coatings for only a portion of a high intensity lamp envelope Grant 5,587,626 - Parham , et al. December 24, 1	1996-12-24
Low mercury arc discharge lamp containing neodymium Grant 5,479,072 - Dakin , et al. December 26, 1	1995-12-26
Luminaire including an electrodeless discharge lamp as a light source Grant 5,378,965 - Dakin , et al. January 3, 1	1995-01-03
Low mercury arc discharge lamp containing praseodymium Grant 5,363,015 - Dakin , et al. November 8, 1	1994-11-08
Method for measuring the impedance of an electrodeless arc discharge lamp Grant 5,332,970 - El-Hamamsy , et al. July 26, 1	1994-07-26
Low-loss L-C drive circuit for an electrodeless high intensity discharge lamp Grant 5,214,357 - Dakin , et al. May 25, 1	1993-05-25
Self-extinguishing gas probe starter for an electrodeless high intensity discharge lamp Grant 5,151,633 - Farrall , et al. September 29, 1	1992-09-29
Electrodeless high intensity discharge lamp having an intergral quartz outer jacket Grant 5,150,015 - Heindl , et al. September 22, 1	1992-09-22
Starting aid for an electrodeless high intensity discharge lamp Grant 5,140,227 - Dakin , et al. * August 18, 1	1992-08-18

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