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










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
Synthesizing VHDL multiple wait FSMS into RT level FSMS by preprocessing
Process for making diethyl ether from acetic acid
Emulsions containing arylboronic acids and medical articles made therefrom
Method and system for utilizing native ethernet as a virtual memory interconnect
Modified and stabilized GDF propeptides and uses thereof
Buckle
Stable file system
  Randomly Featured Patents
Multiple-fixed-frequencies navigation system
Method for controlling a power-shift multi-speed boat transmission
Magnetic head recording multitrack servo patterns
Via fill compositions for direct attach of devices and methods for applying same
Chip scale ball grid array for integrated circuit packaging
Arm for an actuatable holding system
Contact lens with a hydrophilic, polyelectrolyte complex coating and method for forming same
Surgical clip applier having clip chamber with clip chain
Multipath forwarding algorithms using network coding
Method and apparatus for correcting multibyte errors having improved two-level code structure