Resources Contact Us Home
Browse by Category: Main > Optical & Optics
Class Information
Number: 362/379
Name: Illumination > Smoke bells
Description: Subject matter comprising means placed over flame-type light sources to prevent the heat or smoke therefrom from blackening or otherwise injuring superimposed structures (e.g., ceilings).

Patents under this class:

Patent Number Title Of Patent Date Issued
6191899 Emergency visual assistance device Feb. 20, 2001
6074080 Reversible taillight assembly Jun. 13, 2000
4161172 Life support chamber for infants, method and system Jul. 17, 1979
4121571 Transportable life support chamber, method and system Oct. 24, 1978

  Recently Added Patents
Biomedical electro-stimulator
Magnetic reading and writing device
Pizza stone
Analog to digital converter with increased sub-range resolution
RF amplifier with digital filter for polar transmitter
Lighting elements
  Randomly Featured Patents
Weatherable coating and stain system for thermoset or thermoplastic composite surfaces
Vulcanized fluorine rubber and cushioning material for heat press containing same
Modular burial vault
Simple device producing both action effect and electronic effect
Apparatus for changing the helix angle of magnetic tape relative to a rotary head scanner
Relay control circuit using hashing function algorithm
Biomass liquefaction process
Process for making field effect and bipolar transistors on the same semiconductor chip
Vehicle stability control
Telecommunication network