Resources Contact Us Home
Browse by Category: Main > Communications
Class Information
Number: 342/438
Name: Communications: directive radio wave systems and devices (e.g., radar, radio navigation) > Directive > Beacon or receiver > Direction-finding receiver only > With plural fixed antenna pattern comparing > Including separate indicators
Description: Subject matter wherein the comparison is made by use of two or more distinct indicating devices.

Patents under this class:

Patent Number Title Of Patent Date Issued
8686913 Differential vector sensor Apr. 1, 2014
7755534 Radar sensor for receiving radar wave while judging existence of wave attenuator Jul. 13, 2010
4475106 High sensitivity portable radio direction finder Oct. 2, 1984
4263597 Nondisruptive ADF system Apr. 21, 1981
4177467 Waveguide receiving antenna Dec. 4, 1979
3965473 Direction finders Jun. 22, 1976
3936832 System to process antenna beams to obtain the angular location of target with high resolution and accuracy Feb. 3, 1976

  Recently Added Patents
Soybean variety XB51J12
Electronic device
Method and system for controlled media sharing in a network
Tetrazolyl oxime derivative, salt thereof, and plant disease control agent
Optimized delivery of web application code
Cartridge for separating analyte from mixture, comprising dispensing and receiving chambers and insert
Methods and apparatus for processing audio signals
  Randomly Featured Patents
Blood glucose test instrument kit having modular component parts
Biased card deal
Apparatus and method for detecting volatile dissolved substance
Process for modifying unsaturated triacylglycerol oils: resulting products and uses thereof
Peptide having ability to activate cancer-related gene
System and method for executing a request from a client application
Method for estimating pore structure in carbonates from NMR measurements
Reversible thermoelectric converter with power conversion of energy fluctuations
Optical pickup
Water jet appliance