DK

Douglas Kreysar

RI Radiant Imaging: 4 patents #3 of 10Top 30%
NL North American Lighting: 2 patents #8 of 48Top 20%
AM Actron Manufacturing: 1 patents #10 of 23Top 45%
H& Hella Kgaa Hueck &: 1 patents #175 of 496Top 40%
Overall (All Time): #652,495 of 4,157,543Top 20%
8
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
8482652 Imaging devices with components for reflecting optical data and associated methods of use and manufacture Ronald F. Rykowski, Richard E. Albrecht 2013-07-09
7697060 Rotary shutter assemblies for imaging photometers and methods for using such shutter assemblies Matthew Lekson, Ronald F. Rykowski, Richard E. Albrecht 2010-04-13
7616314 Methods and apparatuses for determining a color calibration for different spectral light inputs in an imaging apparatus measurement Matthew Lekson, Gary Robert Pedeville 2009-11-10
6975775 Stray light correction method for imaging light and color measurement system Ronald F. Rykowski 2005-12-13
D491826 Reflector Alexander Shaland, Chan Ho Ming 2004-06-22
6007224 Automotive headlamp reflector and method for its design Jianzhong Jiao, Ben Wang 1999-12-28
5931576 Optical coupler for distributive lighting system Ben Wang, David R. Jenkins 1999-08-03
5675495 Process for the design of free form reflectors which accounts for manufacturing tolerances Gerhard Biermann, Ben Wang 1997-10-07