Light admitting thermal insulating structure
Light collector and concentrator
Light fitting including filter elements
Light reflector for solar panels
Light ring display for cooktop
Light with heater
Light-absorbing materials
Lighting device for microwave oven
Lighting fixture
Lighting system used for heating
Lightwave oven having faceted interior edges
Lightweight collapsible woodburning stove
Lightweight, portable, multi-position, positive-pressure...
Limit switch control especially for warm air furnaces
Linear air diffuser
Linear damper system
Linear radiant ceiling panel and method of manufacturing
Lining for furnaces or stoves
Link bar operator for rotating blade dampers
Liquid atomizer