Resources Contact Us Home
Browse by Category: Main > Communications

Class Number Class Name Patents
181 Acoustics 22,432
367 Communications, electrical: acoustic wave systems and devices 22,380
342 Communications: directive radio wave systems and devices (e.g., radar, radio navigation) 56,320
340 Communications: electrical 193,252
343 Communications: radio wave antennas 45,511
329 Demodulators 4,439
358 Facsimile and static presentation processing 106,314
D10 Measuring, testing, or signalling instruments 26,331
370 Multiplex communications 270,401
398 Optical communications 48,849
331 Oscillators 35,139
375 Pulse or digital communications 143,800
346 Recorders 6,169
D14 Recording, communication, or information retrieval equipment 60,080
116 Signals and indicators 11,510
455 Telecommunications 281,696
178 Telegraphy 6,274
379 Telephonic communications 107,707
386 Television signal processing for dynamic recording or reproducing 30,805
334 Tuners 817
  Recently Added Patents
Dual functional medium shredding machine structure
LED package chip classification system
Method and apparatus for linking a web browser link to a promotional offer
Predicting popularity of electronic publications
Method and apparatus for executing load distributed printing
Fast carrier allocation in multi-carrier systems
Semiconductor device and manufacturing method
  Randomly Featured Patents
E-mail authentication
Slot determination mechanism using pulse counting
Air conditioning control device
Process for testing the freeze-thaw resistance of solids
Multiplexable fiber-optic strain sensor system with temperature compensation capability
Digital to analog converter, liquid crystal display driving circuit, method for digital to analog conversion, and LCD using the digital to analog converter
Squarylium-metal chelate compounds and optical recording media
Column packing method
Exhaust means for percussion tool motors
Siding production line cooling apparatus and method