Resources Contact Us Home
Browse by Category: Main > Electrical & Energy
Class Information
Number: 330/186
Name: Amplifiers > Input networks > To cathode
Description: Subject matter wherein the input signal is coupled to the cathode of a vacuum tube amplifying device.

Sub-classes under this class:

Class Number Class Name Patents
330/187 D.c. coupled 1

Patents under this class:

Patent Number Title Of Patent Date Issued
8105928 Graphene based switching device having a tunable bandgap Jan. 31, 2012
4471316 Electric oscillation generator Sep. 11, 1984

  Recently Added Patents
Advocate for facilitating verification for the online presence of an entity
Monitoring cloud-runtime operations
Optical interconnect in high-speed memory systems
Header rail for a shower screen or the like
Vehicle control apparatus
Memory device and semiconductor device
Vehicle motion control device
  Randomly Featured Patents
Activating plasticizer for urethane prepolymers and complex of alkali metal salt with 4,4'-methylenedianiline
Composition for reducing fat migration in food products
Gene expression and evaluation system using a filter table with a gene expression database
Polarographic sensor and sensing system for determining oxygen content in gases
Characteristic path-based colon segmentation
Structure of oxygen sensing element
Eyeglass and eyeglass components
Roadway impact attenuator
Modeling catalyst exotherm due to blowthrough
Liquid crystal display and method of manufacturing the same