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
Secure device sharing
System and method for conditionally sending a request for data to a home node
Method and apparatus for filter-less class D audio amplifier EMI reduction
Post-processing device and image forming system
Scanning transmission electron microscope and axial adjustment method thereof
Account managing device, image processing system, and storage medium
Direct connect single layer touch panel
  Randomly Featured Patents
Abdominal exercise system
LED bulb
Special effects in image sensors
Method for manufacturing optical bench, optical bench, optical module, silicon wafer substrate in which wiring and groove are formed, and wafer
Method and apparatus for quantitatively evaluating a kidney
System and method for calibrating a rotary absolute position sensor
Customized intervertebral prosthetic disc with shock absorption
Method of monitoring hypertensive haemodialysis patients
Reproduction apparatus and reproduction method
Device for automatic collection, intermediate storage and emptying of blood from slaughter animals