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Class Information
Number: 261/DIG.89
Name: Gas and liquid contact apparatus > Aroma dispensers > Electrically heated aroma dispensers
Description:










Patents under this class:
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Patent Number Title Of Patent Date Issued
8632059 Dispersing fragrances Jan. 21, 2014
8133434 Air treatment device utilizing a sensor for activation and operation Mar. 13, 2012
8048379 Multi cartridge air freshener Nov. 1, 2011
7878488 Method and device for volatizing aromatic oils in response to wireless signals Feb. 1, 2011
7841587 Dispersing fragrances Nov. 30, 2010
7677536 Humidifier with controlled heated scent mechanism Mar. 16, 2010
7377493 Fragrancing system and method May. 27, 2008
7372516 Liquid crystal display with a perfume dispenser May. 13, 2008
7344123 Dispersing fragrances Mar. 18, 2008
7320459 Apparatus for dispensing a vapour into an air flow Jan. 22, 2008
7309387 Methods and apparatus for a low-profile air purifier Dec. 18, 2007
7097161 Electrical air freshener device Aug. 29, 2006
7083162 Intermediary device Aug. 1, 2006
6854717 Evaporator device for active substances Feb. 15, 2005
6834847 Dispensing device for dispensing scents Dec. 28, 2004
6783117 Scent delivery system Aug. 31, 2004
6581915 Dispensing device for dispensing scents Jun. 24, 2003
6551560 Two-stage dispensing mat Apr. 22, 2003
6511531 Room air filtering and freshening device Jan. 28, 2003
6443434 Forced-air scent dispenser Sep. 3, 2002
6406004 Method for imparting a certain odor impression to a person and apparatus for performing the method Jun. 18, 2002
6371453 Diffuser for mounting a volatilizable substance above a container of heated liquid Apr. 16, 2002
6371451 Scent diffusion apparatus and method Apr. 16, 2002
6283461 Automatic cyclic fluid delivery device and associated process Sep. 4, 2001
6196527 Humidifier capable of sending forth fragrance Mar. 6, 2001
5567361 Fragrance enhancer apparatus Oct. 22, 1996
5489086 Cylindrical elastic mount containing highly viscous fluid and having fluid injecting inlet Feb. 6, 1996
5439100 Packaging system for dispensing cartridge for volatiles Aug. 8, 1995
5432882 Automatic electrically heated cigarette lighter socket inserted motor vehicle deodorizer device Jul. 11, 1995
5424049 Device for reducing odors in the interior of a motor vehicle Jun. 13, 1995
5402517 Apparatus for emitting a volatile chemical agent by heating and means for adjusting a spacing between a heater and the chemical agent to regulate the rate of vaporization Mar. 28, 1995
5394506 Fragrance dispenser for an automobile Feb. 28, 1995
5392379 Electrically activated aromatic ornament Feb. 21, 1995
5373581 Automobile plug-in air freshener with rotatable switch and vaporizer Dec. 13, 1994
5282334 Insect exterminator Feb. 1, 1994
5259062 Air treatment apparatus utilizing interchangeable cartridges Nov. 2, 1993
5233680 Wreath-shaped electrically activated aromatic ornament Aug. 3, 1993
5230867 Extended release fragrance dispensing cartridge Jul. 27, 1993
5201025 Dual purpose electric vaporizer for tablets Apr. 6, 1993
5175791 Fragrance diffuser having stepped power levels Dec. 29, 1992
5136684 Heating device for volatilization of fragrant gel Aug. 4, 1992
5115975 Dispenser device and cartridge for volatile substance with rate control for volatilization thereof May. 26, 1992
5011632 Ultrasonic fragrance generation apparatus Apr. 30, 1991
4951854 Backup-proof fluid distribution apparatus Aug. 28, 1990
4944898 Ceiling fan blade mounted air freshner dispensing device Jul. 31, 1990
4853517 Vaporizing unit Aug. 1, 1989
4837421 Fragrance dispensing apparatus Jun. 6, 1989
4813344 Deodorizer container Mar. 21, 1989
4804821 Aroma diffuser assembly Feb. 14, 1989
4795883 Aroma generating apparatus and driver circuit Jan. 3, 1989

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