Resources Contact Us Home
Browse by Category: Main > Household
Class Information
Number: 4/209FF
Name: Baths, closets, sinks, and spittoons > Ventilation > With fluid filter

Patents under this class:

Patent Number Title Of Patent Date Issued
6681412 PTFE membrane filter for exhaust air of vacuum toilet system Jan. 27, 2004
6678900 Bowl ventilation apparatus with proximity sensor Jan. 20, 2004
6550072 Bowl ventilation apparatus Apr. 22, 2003
6519786 Toilet splash shield system Feb. 18, 2003
5806104 Toilet deodorizing device utilizing liquid deodorant Sep. 15, 1998
5560048 Water closet exhaust collector Oct. 1, 1996
5355537 Environmentally controlled portable toilet Oct. 18, 1994
5341521 Environmentally controlled standard toilet Aug. 30, 1994
5333321 Environmentally controlled commercial/public toilet Aug. 2, 1994
5210884 Environmentally controlled toilet May. 18, 1993
4991623 Automatic air valves for ducts Feb. 12, 1991
4974632 Automatic air valves for ducts Dec. 4, 1990
4726078 Toilet ventilation system Feb. 23, 1988
4630530 Filtering systems for buses Dec. 23, 1986
4608175 Integral waste disposal system Aug. 26, 1986
4025325 Portable ventilating air filtering device for toilets May. 24, 1977

  Recently Added Patents
Accessory system for vehicle
Signal transfer apparatus
Vehicle wheel
Lentiviral gene transfer vectors and their medicinal applications
Method and apparatus for monitoring for a radio link failure
Selecting modulation and coding scheme in the presence of interference
Distortion compensation device, distortion compensation method, and radio transmitter
  Randomly Featured Patents
Baby chair
Context-switching to and from a host OS in a virtualized computer system
Motorcycle coupling assembly
Control system for limiting the electrical consumption of a distribution network
Method for managing information on a storage media without losing information due to effects
Recombinant viral vector system
Analog angular coder
Inter-vertebral implant
Method and system for providing price protection for commodity purchasing through price protection contracts
Fluorine gas generation system