Resources Contact Us Home
Browse by Category: Main > Physics
Class Information
Number: 257/E47.003
Name: Active solid-state devices (e.g., transistors, solid-state diodes) > Bulk negative resistance effect devices, e.g., gunn-effect devices, processes, or apparatus peculiar to manufacture or treatment of such devices, or of parts thereof (epo) > Gunn-effect devices or transferred electron devices (epo) > Controlled by electromagnetic radiation (epo)
Description: This subclass is indented under subclass E47.002. This subclass is substantially the same in scope as ECLA classification H01L47/02B.

Patents under this class:

Patent Number Title Of Patent Date Issued
7456082 Method for producing silicon single crystal and silicon single crystal Nov. 25, 2008
7087921 Active electronic device and electronic apparatus Aug. 8, 2006

  Recently Added Patents
Surface modification
Structural plasticity in spiking neural networks with symmetric dual of an electronic neuron
Toner for developing electrostatic charge image, electrostatic charge image developer, toner cartridge, process cartridge, image forming method, and image forming apparatus
Image forming apparatus
Systems and methods for assigning a template to an existing network configuration
Power converter with a variable reference voltage and inrush current limiting
Transferring data by touch between touch-screen devices
  Randomly Featured Patents
Wind turbine system
Signal processing apparatus
Hinge with built in safety switch
Color changing cleansing composition
Rear projection type display apparatus
Stabilized chlorine-containing polymer compositions
Tamperproof package
Spherical vehicle
Shape detection device and manufacturing method thereof