Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Inventor:
Birdwell; William A.
Address:
Portland, OR
No. of patents:
4
Patents:












Patent Number Title Of Patent Date Issued
7009581 Dynamic diffractive optical transform March 7, 2006
A dynamic diffractive optical transform. An electric field pattern is created across a body of material, the material being characterized in that it has an optical transmission property which varies in response to of an electric potential applied across a portion thereof. The electric
6774871 Dynamic diffractive optical transform August 10, 2004
A dynamic diffractive optical transform. An electric field pattern is created across a body of material, the material being characterized in that it has an optical transmission property which varies in response to of an electric potential applied across a portion thereof. The electric
6437762 Dynamic diffractive optical transform August 20, 2002
A dynamic diffractive optical transform. An electric field pattern is created across a body of material, the material being characterized in that it has an optical transmission property which varies in response to of an electric potential applied across a portion thereof. The electric
5877876 Diffractive optical switch with polarizing beam splitters March 2, 1999
A dynamic diffractive optical transform. An electric field pattern is created across a body of material, the material being characterized in that it has an optical transmission property which varies in response to of an electric potential applied across a portion thereof. The electric










 
 
  Recently Added Patents
LED lamp including heat dissipator
Image forming apparatus detecting color patterns and generating interleaf images at predetermined position
FET device having ultra-low on-resistance and low gate charge
Diameter signaling for mobile IPv4
VGPU: a real time GPU emulator
Information processing apparatus capable of authentication processing with improved user convenience, control program for information processing apparatus, and recording medium having control
Low powered activation arrangement and method thereof
  Randomly Featured Patents
Implantable heart stimulator
Substituted 2-(4-phenoxyphenyl)-2-tertiary butyl-1,3-dioxalanes
Copolymers based on maleic acid derivatives and vinyl monomers, their production and application
Chair armrest
Testing multiple levels in integrated circuit technology development
Diagnosing peripheral vascular disease by monitoring oxygen saturation changes during a hyperemia phase
Fixing roller
Non-volatile memory array
Method and apparatus for allocating radio channels
Fluorescent luminous device