Thomas E. Stack — 11 Patents at Q Technology

Thomas E. Stack has been granted 11 US patents while listed as an inventor at Q Technology. The first was granted in 1984 and the most recent in March 2016. Thomas E. Stack ranks #435,149 of 4,157,543 US inventors in our database (top 10.5%). Patent records list Thomas E. Stack in Oxford, MI, US.

Issued Patents All Time

Showing 1–11 of 11 patents

Patent #	Title	Co-Inventors	Date	Approx Value ⓘ
9285081	LED high bay lighting source	David Douglas	2016-03-15
9022608	Unlit LED circuit bypass element with system and method therefor	Ted Huff	2015-05-05
8890419	System and method providing LED emulation of incandescent bulb brightness and color response to varying power input and dimmer circuit therefor	—	2014-11-18
8354800	Lighting source with low total harmonic distortion	—	2013-01-15
8008865	Multiple failure detection shutdown protection circuit for an electronic ballast	—	2011-08-30
7862195	Multiple positioned light source to achieve uniform or graded illumination	David Douglas, Samuel Lee	2011-01-04
7598677	Multiple failure detection shutdown protection circuit for an electronic ballast	—	2009-10-06
7405522	Multiple failure detection shutdown protection circuit for an electronic ballast	—	2008-07-29
5307057	Fiber optic display system utilizing a dual light source	Kenneth J. Cook, Jeffry B. Stout, Donald J. Davis, Anwar Bawadekji	1994-04-26	$149,000
4894588	High efficiency flasher	—	1990-01-16	$144,000
4471280	Anti-log power amplifier for reversible D.C. motor in automotive steering controls	—	1984-09-11

Thomas E. Stack — 11 Patents

Issued Patents All Time

Patent Widget