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Class Information
Number: 257/E25.006
Name: Active solid-state devices (e.g., transistors, solid-state diodes) > Assemblies consisting of plurality of individual semiconductor or other solid-state devices (epo) > All devices being of same type, e.g., assemblies of rectifier diodes (epo) > Devices not having separate containers (epo) > Devices responsive or sensitive to electromagnetic radiation, e.g., infrared radiation, adapted for conversion of radiation into electrical energy or for control of electrical energy by such radiation (epo) > Stacked arrangements of devices (epo)
Description: This subclass is indented under subclass E25.004. This subclass is substantially the same in scope as ECLA classification H01L25/04C4.

Sub-classes under this class:

Class Number Class Name Patents
257/E25.007 Devices being solar cells (epo) 90

Patents under this class:
1 2 3 4 5 6 7

Patent Number Title Of Patent Date Issued
3987298 Photodetector system for determination of the wavelength of incident radiation Oct. 19, 1976
3962578 Two-color photoelectric detectors having an integral filter Jun. 8, 1976

1 2 3 4 5 6 7

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