Resources Contact Us Home
Browse by Category: Main > Electrical & Energy
Class Information
Number: 324/138.11
Name: Electricity: measuring and testing >

Sub-classes under this class:

Class Number Class Name Patents
324/158.1 Miscellaneous 3,073
324/160 Electrical speed measuring 271
324/200 Magnetic 107
324/300 Particle precession resonance 652
324/323 Of geophysical surface or subsurface in situ 196
324/376 Of subsurface core sample 59
324/378 Internal-combustion engine ignition system or device 114
324/403 Electric lamp or discharge device 42
324/415 Electromechanical switching device 152
324/425 Electrolyte properties 244
324/451 A material property using thermoelectric phenomenon 31
324/452 A material property using electrostatic phenomenon 158
324/457 Electrostatic field 318
324/459 Using ionization effects 111
324/500 Fault detecting in electric circuits and of electric components 417
324/557 For insulation fault of noncircuit elements 178
324/600 Impedance, admittance or other quantities representative of electrical stimulus/response relationships 174
324/66 Conductor identification or location (e.g., phase identification) 303
324/71.1 Determining nonelectric properties by measuring electric properties 690
324/72 Testing potential in specific environment (e.g., lightning stroke) 454
324/73.1 Plural, automatically sequential tests 1,076
324/74 Testing and calibrating electric meters (e.g., watt-hour meters) 204
324/76.11 Measuring, testing, or sensing electricity, per se 560
324/800 Divining rods 1

Patents under this class:

Patent Number Title Of Patent Date Issued

  Recently Added Patents
Manually operable clipping-machine
System for storing and retrieving shoes
Method of fabricating a compliant membrane probe
Heat sink
Motor support structure and actuator incorporating same
Systems for fastening a head stack to a hard drive base assembly
Heat spreader for center gate molding
  Randomly Featured Patents
Bead calculator educational toy
Hologram recording apparatus, hologram recording method and optical recording medium
Device for treatment of waste materials with harvester access zone
Process for production of styrene-based resin composition
Attachment assembly for securing trim material to the padding of a vehicle seat
Retail sign holder
Semiconductor device having channel formation region comprising silicon and containing a group IV element
Gaming machine and method of play
Telecommunications system and method for controlling privacy
Light emitting diode having vertical topology and method of making the same