Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
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
Light irradiation element, image forming structure, and image forming apparatus
High-accuracy centered fractional fourier transform matrix for optical imaging and other applications
Electrical connector
Pet urn enclosure
Bid optimization in search engine marketing
Removable storage device and method for identifying drive letter of the removable storage device
Rules-based approach to transferring and/or viewing medical images
  Randomly Featured Patents
Footwear with interchangeable components
Leather coating structure for a case and method for manufacturing thereof
Electric discharge machining apparatus
Easily disassembled heat exchanger of high efficiency
Method for the treatment of digestive ulcers
Wrench
Adaptively positioned solar array
Method and apparatus for connecting a network device to a daisy chain network
Method and system for performing surveillance
Method for fabricating bevel and hypoid gear pairs