FE

Frederic R. Engstrom

3M: 3 patents #4,214 of 11,543Top 40%
Tektronix: 1 patents #823 of 1,698Top 50%
Overall (All Time): #1,250,784 of 4,157,543Top 35%
4
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
7350925 Total internal reflection Fresnel lens and optical system using the same 2008-04-01
7196687 Swept illumination to reduce LCD lag in front and rear projection displays Arlie R. Conner 2007-03-27
7029130 Contrast and brightness enhancing apertures for illumination displays Bruce Cannon, Gary B. Kingsley, Peter Oehler 2006-04-18
4223083 Virtual mask exposure system for CRT screen manufacture 1980-09-16