Resources Contact Us Home
Browse by Category: Main > Physics
Class Information
Number: 257/E33.042
Name: Active solid-state devices (e.g., transistors, solid-state diodes) > Light emitting semiconductor devices having a potential or a surface barrier, processes or apparatus peculiar to the manufacture or treatment of such devices, or of parts thereof > Device characterized by semiconductor body (epo) > Material of active region (epo) > Comprising compound other than group ii-vi, iii-v, and iv compound (epo) > Comprising only group iv-vi or ii-iv-vi compound (epo)
Description: This subclass is indented under subclass E33.037. This subclass is substantially the same in scope as ECLA classification H01L33/00C4F6.

Patents under this class:

Patent Number Title Of Patent Date Issued

  Recently Added Patents
Method of fabricating crystal unit, crystal unit fabrication mask, and crystal unit package
Compositions for inhibiting NADPH oxidase activity
Matching a usage history to a new cloud
Fast port switching in an audiovisual receiver by use of port pre-authentication by a partial PHY decoder core
Method for controlling a motor
System and method for enabling image recognition and searching of remote content on display
Compounds and their salts specific to the PPAR receptors and the EGF receptors and their use in the medical field
  Randomly Featured Patents
Manufacturing method of a semiconductor device having a package dicing
Film information exchange system with virtual identification codes
Apparatus for continuously separating liquid mixtures
Apparatus and method for controlling autotroph cultivation
Polyol extraction by high boiling alkanes
Method and system for database management for data mining
Inching valve
Memory access control unit for allowing maximum throughput of an I/O processor and an I/O request buffer full state
Multilayer inductor
Reusable, separable, structural connector assembly