Inventor
CONRAD HELMUT GERHARD
CA51 patents
⚠️ This page may combine multiple inventors who share the name “CONRAD HELMUT GERHARD”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
FANTOM TECH INC
24 patentsUS6782585B1Aug 31, 2004
Upright vacuum cleaner with cyclonic air flow
FANTOM TECH INC341 citations99
US6740144B2May 25, 2004
Vacuum cleaner utilizing electrostatic filtration and electrostatic precipitator for use therein
FANTOM TECH INC108 citations99
US6482252B1Nov 19, 2002
Vacuum cleaner utilizing electrostatic filtration and electrostatic precipitator for use therein
FANTOM TECH INC155 citations99
US6334234B1Jan 1, 2002
Cleaner head for a vacuum cleaner
FANTOM TECH INC220 citations99
US6261379B1Jul 17, 2001
Floating agitator housing for a vacuum cleaner head
FANTOM TECH INC146 citations99
US6238451B1May 29, 2001
Vacuum cleaner
FANTOM TECH INC142 citations99
US6156102ADec 5, 2000
Method and apparatus for recovering water from air
FANTOM TECH INC177 citations99
US6328527B1Dec 11, 2001
Prandtl layer turbine
FANTOM TECH INC102 citations98
US6123779ASep 26, 2000
Pressure based sensing means for adjusting the height of an agitator in a vacuum cleaner head
FANTOM TECH INC89 citations98
US6383266B1May 7, 2002
Vacuum cleaner utilizing electrostatic filtration and electrostatic precipitator for use therein
FANTOM TECH INC40 citations96
US6217635B1Apr 17, 2001
Method and apparatus for concentrating a gas using a single stage adsorption chamber
FANTOM TECH INC61 citations96
US6183641B1Feb 6, 2001
Prandtl layer turbine
FANTOM TECH INC57 citations96
US6162283ADec 19, 2000
Method and apparatus for concentrating a gas using a single stage adsorption zone
FANTOM TECH INC53 citations96
US6261052B1Jul 17, 2001
Prandtl layer turbine
FANTOM TECH INC43 citations93
US6238177B1May 29, 2001
Prandtl layer turbine
FANTOM TECH INC40 citations93
US6174127B1Jan 16, 2001
Prandtl layer turbine
FANTOM TECH INC47 citations93
US6156100ADec 5, 2000
Method and apparatus for concentrating a gas using a single stage adsorption zone
FANTOM TECH INC37 citations93
US6153111ANov 28, 2000
Method and apparatus for purifying water
FANTOM TECH INC38 citations93
US6135708AOct 24, 2000
Prandtl layer turbine
FANTOM TECH INC47 citations93
US6312588B1Nov 6, 2001
Water purifier
FANTOM TECH INC36 citations92
US6568900B2May 27, 2003
Pressure swing contactor for the treatment of a liquid with a gas
FANTOM TECH INC24 citations91
US6060027AMay 9, 2000
Ozone generator
FANTOM TECH INC17 citations91
US6455000B1Sep 24, 2002
Method and apparatus for measuring the concentration of a gas
FANTOM TECH INC11 citations74
US6190622B1Feb 20, 2001
Ozone generator
FANTOM TECH INC9 citations72
GBD CORP
13 patentsUS6902596B2Jun 7, 2005
Air flow passage for a vacuum cleaner
GBD CORP138 citations99
US6736873B2May 18, 2004
Air flow passage for a vacuum cleaner
GBD CORP130 citations99
US6312594B1Nov 6, 2001
Insert for a cyclone separator
GBD CORP109 citations98
US6277278B1Aug 21, 2001
Cyclone separator having a variable longitudinal profile
GBD CORP96 citations98
US6168716B1Jan 2, 2001
Cyclone separator having a variable transverse profile
GBD CORP83 citations98
US6141826ANov 7, 2000
Center air feed for cyclonic separator
GBD CORP90 citations98
US6129775AOct 10, 2000
Terminal insert for a cyclone separator
GBD CORP129 citations98
US8015659B2Sep 13, 2011
Air flow passage for a vacuum cleaner
GBD CORP34 citations96
US6599340B2Jul 29, 2003
Air flow passage for a cyclonic separator and vacuum cleaner having same
GBD CORP70 citations96
US6596046B2Jul 22, 2003
Cyclone separator having a variable longitudinal profile
GBD CORP66 citations96
US6391095B1May 21, 2002
Air flow passage for a cyclonic separator and vacuum cleaner having same
GBD CORP81 citations95
US7455708B2Nov 25, 2008
Air flow passage for a vacuum cleaner
GBD CORP27 citations93
US6419719B2Jul 16, 2002
Cyclonic vacuum cleaner
GBD CORP33 citations93
TI PROPERTIES INC
7 patentsUS6309514B1Oct 30, 2001
Process for breaking chemical bonds
TI PROPERTIES INC57 citations95
US5934328AAug 10, 1999
In-line venturi
TI PROPERTIES INC21 citations91
US5879641AMar 9, 1999
Ozone generator
TI PROPERTIES INC38 citations91
US5676173AOct 14, 1997
In-line venturi
TI PROPERTIES INC33 citations91
US6001315ADec 14, 1999
Apparatus for chemical conversion
TI PROPERTIES INC12 citations81
US6488819B2Dec 3, 2002
Process and apparatus for chemical conversion
TI PROPERTIES INC6 citations73
US6447733B1Sep 10, 2002
Fluid contact chamber
TI PROPERTIES INC7 citations73
ATI PROPERTIES INC
3 patentsUS6772961B2Aug 10, 2004
Methods and apparatus for spray forming, atomization and heat transfer
ATI PROPERTIES INC55 citations96
US7374598B2May 20, 2008
Methods and apparatus for spray forming, atomization and heat transfer
ATI PROPERTIES INC36 citations92
US6984364B2Jan 10, 2006
Process and apparatus for chemical conversion
ATI PROPERTIES INC2 citations62
(unassigned)
2 patentsPOLAR LIGHT LTD
1 patentShowing the top 50 of 51 patents by PatentIndex Score.