Resources Contact Us Home
Browse by Category: Main > Electrical & Energy
Class Information
Number: 330/90
Name: Amplifiers > Signal feedback > Cathode impedance feedback > Combined with diverse-type feedback coupling
Description: Subject matter combined with a type of signal feedback as defined in subclass 75, which is diverse from the type of feedback defined in subclass 87.

Sub-classes under this class:

Class Number Class Name Patents
330/91 Diverse feedback to or from cathode 0
330/93 Including positive feedback 0

Patents under this class:

Patent Number Title Of Patent Date Issued
6972620 Post amplifier array integrated circuit Dec. 6, 2005

  Recently Added Patents
Hemostatic devices and methods of making same
Web development environment that enables a developer to interact with run-time output presentation of a page
Cross-platform cloud-based map creation
Data storage apparatus, memory control apparatus and method for controlling flash memories
Washing machine
Semiconductor device and method of manufacturing the same
Polarization preserving front projection screen microstructures
  Randomly Featured Patents
Detachable sole for an ankle and foot covering
Digital watermark embedding device and digital watermark detecting device
Folding hay raking and windrowing apparatus
Handheld terminal
Wheelchair seat cushion
Irrigator for body cavities
Proteolytic enzymes from hyperthermophilic bacteria and processes for their production
Method and system for stereo videoconferencing
Underbeam axle lift assembly