Patents 70show all

  • 29
    F25B - Refrigeration machines, plants or systems
  • 12
    F28D - Heat-exchange apparatus, not provided for in another subclass, in which the heat-exchange media do not come into direct contact
  • 9
    F28F - Details of heat-exchange and heat-transfer apparatus, of general application
  • 6
    F24V - Collection, production or use of heat not otherwise provided for
  • 4
    F15D - Fluid dynamics, i.e. methods or means for influencing the flow of gases or liquids
  • 4
    H04L - Transmission of digital information, e.g. telegraphic communication
  • 4
    Y02T - Climate change mitigation technologies related to transportation
  • 3
    B64C - Aeroplanes
  • 3
    F01D - Non-positive displacement machines or engines, e.g. steam turbines
  • 3
    F03D - Wind motors

Contact Information

Portland, OR
United States