Inventor · disambiguated record
Helmut Gerhard Conrad
Also filed as: CONRAD HELMUT G · CONRAD HELMUT GERHARD
52 granted patents·10 pending applications·3,565 citations·filing 1994–2008
99Inventor score
Top patents by PatentIndex Score
62 records- 0199US6782585B1Upright vacuum cleaner with cyclonic air flowFANTOM TECH INC·Filed 2000·Granted Aug 31, 2004·341 cites·8 claims
- 0299US6334234B1Cleaner head for a vacuum cleanerFANTOM TECH INC·Filed 1999·Granted Jan 1, 2002·220 cites·8 claims
- 0398US6902596B2Air flow passage for a vacuum cleanerGBD CORP·Filed 2004·Granted Jun 7, 2005·138 cites·17 claims
- 0498US6736873B2Air flow passage for a vacuum cleanerGBD CORP·Filed 2002·Granted May 18, 2004·130 cites·22 claims
- 0598US6482252B1Vacuum cleaner utilizing electrostatic filtration and electrostatic precipitator for use thereinFANTOM TECH INC·Filed 2000·Granted Nov 19, 2002·155 cites·31 claims
- 0697US7455708B2Air flow passage for a vacuum cleanerGBD CORP·Filed 2006·Granted Nov 25, 2008·27 cites·10 claims
- 0797US6599340B2Air flow passage for a cyclonic separator and vacuum cleaner having sameGBD CORP·Filed 2002·Granted Jul 29, 2003·70 cites·5 claims
- 0897US6238451B1Vacuum cleanerFANTOM TECH INC·Filed 1999·Granted May 29, 2001·142 cites·15 claims
- 0997US6156102AMethod and apparatus for recovering water from airFANTOM TECH INC·Filed 1998·Granted Dec 5, 2000·177 cites·42 claims
- 1096US6596046B2Cyclone separator having a variable longitudinal profileGBD CORP·Filed 2001·Granted Jul 22, 2003·66 cites·5 claims
- 1196US6312594B1Insert for a cyclone separatorGBD CORP·Filed 1998·Granted Nov 6, 2001·109 cites·48 claims
- 1296US6129775ATerminal insert for a cyclone separatorGBD CORP·Filed 1998·Granted Oct 10, 2000·129 cites·35 claims
- 1395US6740144B2Vacuum cleaner utilizing electrostatic filtration and electrostatic precipitator for use thereinFANTOM TECH INC·Filed 2002·Granted May 25, 2004·108 cites·10 claims
- 1495US6277278B1Cyclone separator having a variable longitudinal profileGBD CORP·Filed 1998·Granted Aug 21, 2001·96 cites·25 claims
- 1595US6261379B1Floating agitator housing for a vacuum cleaner headFANTOM TECH INC·Filed 1999·Granted Jul 17, 2001·146 cites·23 claims
- 1694US8015659B2Air flow passage for a vacuum cleanerGBD CORP·Filed 2008·Granted Sep 13, 2011·34 cites·11 claims
- 1794US6391095B1Air flow passage for a cyclonic separator and vacuum cleaner having sameGBD CORP·Filed 2000·Granted May 21, 2002·81 cites·48 claims
- 1894US6141826ACenter air feed for cyclonic separatorGBD CORP·Filed 1999·Granted Nov 7, 2000·90 cites·24 claims
- 1993US6772961B2Methods and apparatus for spray forming, atomization and heat transferATI PROPERTIES INC·Filed 2001·Granted Aug 10, 2004·55 cites·79 claims
- 2092US7179314B2Vacuum cleanerPOLAR LIGHT LTD·Filed 2004·Granted Feb 20, 2007·44 cites·17 claims
- 2192US6328527B1Prandtl layer turbineFANTOM TECH INC·Filed 1999·Granted Dec 11, 2001·102 cites·16 claims
- 2292US5630990AOzone generator with releasable connector and grounded current collectorTI PROPERTIES INC·Filed 1994·Granted May 20, 1997·58 cites·34 claims
- 2391US6123779APressure based sensing means for adjusting the height of an agitator in a vacuum cleaner headFANTOM TECH INC·Filed 1999·Granted Sep 26, 2000·89 cites·31 claims
- 2490US7374598B2Methods and apparatus for spray forming, atomization and heat transferATI PROPERTIES INC·Filed 2004·Granted May 20, 2008·36 cites·4 claims
- 2590US6383266B1Vacuum cleaner utilizing electrostatic filtration and electrostatic precipitator for use thereinFANTOM TECH INC·Filed 2000·Granted May 7, 2002·40 cites·20 claims
- 2689US6419719B2Cyclonic vacuum cleanerGBD CORP·Filed 2001·Granted Jul 16, 2002·33 cites·23 claims
- 2785US6168716B1Cyclone separator having a variable transverse profileGBD CORP·Filed 1998·Granted Jan 2, 2001·83 cites·58 claims
- 2884US6309514B1Process for breaking chemical bondsTI PROPERTIES INC·Filed 1994·Granted Oct 30, 2001·57 cites·7 claims
- 2984US6217635B1Method and apparatus for concentrating a gas using a single stage adsorption chamberFANTOM TECH INC·Filed 1999·Granted Apr 17, 2001·61 cites·35 claims
- 3083US6224325B1Prandtl layer turbineFiled 1999·Granted May 1, 2001·50 cites·23 claims
- 3183US6183641B1Prandtl layer turbineFANTOM TECH INC·Filed 1999·Granted Feb 6, 2001·57 cites·23 claims
- 3281US6162283AMethod and apparatus for concentrating a gas using a single stage adsorption zoneFANTOM TECH INC·Filed 1999·Granted Dec 19, 2000·53 cites·38 claims
- 3381US6135708APrandtl layer turbineFANTOM TECH INC·Filed 1999·Granted Oct 24, 2000·47 cites·24 claims
- 3480US5879641AOzone generatorTI PROPERTIES INC·Filed 1997·Granted Mar 9, 1999·38 cites·1 claims
- 3579US5676173AIn-line venturiTI PROPERTIES INC·Filed 1995·Granted Oct 14, 1997·33 cites·41 claims
- 3678US6174127B1Prandtl layer turbineFANTOM TECH INC·Filed 1999·Granted Jan 16, 2001·47 cites·18 claims
- 3778US6153111AMethod and apparatus for purifying waterFANTOM TECH INC·Filed 1999·Granted Nov 28, 2000·38 cites·24 claims
- 3873US6312588B1Water purifierFANTOM TECH INC·Filed 1999·Granted Nov 6, 2001·36 cites·41 claims
- 3972US6156100AMethod and apparatus for concentrating a gas using a single stage adsorption zoneFANTOM TECH INC·Filed 1999·Granted Dec 5, 2000·37 cites·24 claims
- 4071US6488819B2Process and apparatus for chemical conversionTI PROPERTIES INC·Filed 2001·Granted Dec 3, 2002·6 cites·10 claims
- 4168US6568900B2Pressure swing contactor for the treatment of a liquid with a gasFANTOM TECH INC·Filed 2001·Granted May 27, 2003·24 cites·20 claims
- 4268US6261052B1Prandtl layer turbineFANTOM TECH INC·Filed 1999·Granted Jul 17, 2001·43 cites·31 claims
- 4365US6238177B1Prandtl layer turbineFANTOM TECH INC·Filed 1999·Granted May 29, 2001·40 cites·40 claims
- 4461US6060027AOzone generatorFANTOM TECH INC·Filed 1998·Granted May 9, 2000·17 cites·32 claims
- 4560US6984364B2Process and apparatus for chemical conversionATI PROPERTIES INC·Filed 2002·Granted Jan 10, 2006·2 cites·15 claims
- 4660US2008035469A1Process and apparatus for chemical conversionCONRAD WAYNE E·Filed 2007·Application pending·0 cites
- 4759US5934328AIn-line venturiTI PROPERTIES INC·Filed 1997·Granted Aug 10, 1999·21 cites·9 claims
- 4859US2008223174A1Methods and apparatus for spray forming, atomization and heat transferFORBES JONES ROBIN M·Filed 2007·Application pending·0 cites
- 4958US2008072707A1Methods and apparatus for spray forming, atomization and heat transferFORBES JONES ROBIN M·Filed 2007·Application pending·0 cites
- 5057US6250324B1In-line venturiFiled 1999·Granted Jun 26, 2001·20 cites·10 claims
Showing the top 50 of 62 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →