William A. Coghlan — 5 Patents at Durel

William A. Coghlan has been granted 5 US patents while listed as an inventor at Durel. The first was granted in 2000 and the most recent in July 2007. William A. Coghlan ranks #907,971 of 4,157,543 US inventors in our database (top 21.8%). Patent records list William A. Coghlan in Tempe, AZ, US.

Issued Patents All Time

Showing 1–5 of 5 patents

Patent #	Title	Co-Inventors	Date
7238535	Test cell for evaluating phosphor	Karen Ruth Brower, Roy Scott Chancellor, Will M. Hooke, Curtis Henry Kempton, Alan C. Thomas	2007-07-03
7009346	Driving an EL panel without DC bias	Mahyar Vahabzadeh, Robert A. Kimball	2006-03-07
6528943	EL lamp with increased phosphor density	David A. Hardinger, David G. Pires	2003-03-04
6433476	EL lamp with heater electrode	Walter J. Pacicrek, Christopher C. Shol	2002-08-13
6111362	Controlling color shift in EL phosphors	Charles I. Zovko, Edward L. Kinnally	2000-08-29

William A. Coghlan — 5 Patents

Issued Patents All Time

Patent Widget