Patents 144show all

  • 38
    B01J - Chemical or physical processes, e.g. catalysis or colloid chemistry
  • 36
    Y02E - Reduction of greenhouse gas [ghg] emissions, related to energy generation, transmission or distribution
  • 35
    G21B - Fusion reactors
  • 29
    G10K - Sound-producing devices
  • 29
    G21C - Nuclear reactors
  • 16
    B01D - Separation
  • 16
    F28D - Heat-exchange apparatus, not provided for in another subclass, in which the heat-exchange media do not come into direct contact
  • 12
    F24V - Collection, production or use of heat not otherwise provided for
  • 11
    C02F - Treatment of water, waste water, sewage, or sludge
  • 10
    F25B - Refrigeration machines, plants or systems

SEC Filings show all


1
D

Contact Information

Grass Valley, CA
United States

SEC Form D Funding Events

DateOfferedSoldType
2004-10-08Unknown Unknown Other (Paper Filing)