Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Apparatus and method for controlling a heat pump water heater

Apparatus and method for controlling a heat pump water heater

US Patent 4492091 · Granted Jan 8, 1985

Assignee

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

Indoor air quality control2002
Interlocking metal shingle2001
Low pressure air cycle cooling device1996
Front panel for an air conditioner1988
Auto-set oscillating louver design1986
Louver assembly1986
Method and apparatus for assembly of a room air conditioner housing1986
Heat transfer and storage system1981
Combination process tube and vibration attenuator for a refrigeration circuit1980