Inventor · disambiguated record
Peter Worwag
Also filed as: WOERWAG PETER · WORWAG PETER
35 granted patents·4 pending applications·908 citations·filing 1987–2007
98Inventor score
Top patents by PatentIndex Score
39 records- 0190USD457696SVacuum cleaning toolDUEPRO AG·Filed 2001·Granted May 21, 2002·44 cites·1 claims
- 0288US5551119AVacuum cleaning tool with electrically driven brush rollerFEDAG ROMANSHORN FA·Filed 1993·Granted Sep 3, 1996·70 cites·9 claims
- 0386US6550099B2Vacuum cleaning tool with exchangeable vacuum shoesDUEPRO AG·Filed 2001·Granted Apr 22, 2003·48 cites·24 claims
- 0485US5141309AApparatus for indicating how dirty an air filter is in a vacuum-cleaning apparatus, in a room filter, etc.FEDAG ROMANSHORN FA·Filed 1991·Granted Aug 25, 1992·72 cites·6 claims
- 0583US5293665ANozzle mechanism for a vacuum cleanerFEDAG ROMANSHORN FA·Filed 1992·Granted Mar 15, 1994·58 cites·13 claims
- 0682USD312904SVacuum cleaner nozzleDUEPRO AG·Filed 1989·Granted Dec 11, 1990·19 cites·1 claims
- 0781US7941893B2Vacuum cleaning tool and method for its operationDUEPRO AG·Filed 2007·Granted May 17, 2011·12 cites·12 claims
- 0881US7316050B2Vacuum cleaning tool having an exchangeable attachmentDUEPRO AG·Filed 2003·Granted Jan 8, 2008·29 cites·23 claims
- 0980USD524002SVacuum cleaner head with lightLUX INTERNAT AG·Filed 2003·Granted Jun 27, 2006·26 cites·1 claims
- 1080US5920939AFloor cleaning apparatus having a rotating brush rollerFEDAG ROMANSHORN FA·Filed 1997·Granted Jul 13, 1999·55 cites·16 claims
- 1179US6134745AVacuum cleaning tool having a brush roller that can be pivoted outDUEPRO AG·Filed 1999·Granted Oct 24, 2000·52 cites·12 claims
- 1278US5617611ASuction line assemblyFEDAG ROMANSHORN FA·Filed 1996·Granted Apr 8, 1997·49 cites·15 claims
- 1370US5008973AMulti-purpose suction nozzleDUEPRO AG·Filed 1990·Granted Apr 23, 1991·38 cites·12 claims
- 1468US6484356B2Vacuum cleaning tool with pear-shaped turbine chamberDUEPRO AG·Filed 2001·Granted Nov 26, 2002·17 cites·25 claims
- 1568US5416948AVacuum cleaning tool for wet and dry vacuum cleanersFEDAG ROMANSHORN FA·Filed 1993·Granted May 23, 1995·35 cites·17 claims
- 1666USD381479SVacuum cleanerFIRMA FEDAG·Filed 1996·Granted Jul 22, 1997·14 cites·1 claims
- 1766US5014386ASuction nozzle, with a brush, for a vacuum cleanerDUEPRO AG·Filed 1990·Granted May 14, 1991·27 cites·6 claims
- 1863US6615445B2Vacuum cleaning tool with direct flow turbineDUEPRO AG·Filed 2001·Granted Sep 9, 2003·12 cites·20 claims
- 1962US5950275AVacuum cleaning tool for a vacuum cleaning apparatusDUEPRO AG·Filed 1998·Granted Sep 14, 1999·29 cites·7 claims
- 2061US5412837AVacuum cleanerFEDAG ROMANSHORN FA·Filed 1993·Granted May 9, 1995·28 cites·17 claims
- 2161US4749389AMethod and apparatus for humidifying and purifying the air of a roomDUEPRO AG·Filed 1987·Granted Jun 7, 1988·23 cites·22 claims
- 2259US5611109ACleaning roller for the suction head of a vacuum cleaning deviceFEDAG ROMANSHORN FA·Filed 1996·Granted Mar 18, 1997·27 cites·20 claims
- 2359US4776059AVacuum-cleaning apparatusDUEPRO AG·Filed 1988·Granted Oct 11, 1988·25 cites·20 claims
- 2457US6813809B2Vacuum cleaning tool with rotating brush rollerDUEPRO AG·Filed 2002·Granted Nov 9, 2004·7 cites·18 claims
- 2557US6477735B2Vacuum cleaning tool with an outlet rampDUEPRO AG·Filed 2001·Granted Nov 12, 2002·7 cites·21 claims
- 2656USD306789SBrush-type suction nozzleDUEPRO AG·Filed 1987·Granted Mar 20, 1990·7 cites·1 claims
- 2752USD427398SVacuum turbobrushDUEPRO AG·Filed 1999·Granted Jun 27, 2000·7 cites·1 claims
- 2852US2007056667A1Wheel for a Floor SurfaceDUEPRO AG·Filed 2006·Application pending·0 cites
- 2951US7246410B2Vacuum cleaning tool having an air turbine with stabilizing air streamDUEPRO AG·Filed 2003·Granted Jul 24, 2007·2 cites·12 claims
- 3051US7246408B2Cleaning tool with rotatably driven working toolDUEPRO AG·Filed 2003·Granted Jul 24, 2007·2 cites·20 claims
- 3151US2006179606A1Vacuum Cleaning Tool, Especially Hand-Held Nozzle, for a Vacuum CleanerDUEPRO AG·Filed 2006·Application pending·0 cites
- 3250US5369839AVacuum cleanerFEDAG ROMANSHORN FA·Filed 1993·Granted Dec 6, 1994·20 cites·20 claims
- 3349USD344376SVacuum cleanerFIRMA FEDAG·Filed 1992·Granted Feb 15, 1994·6 cites·1 claims
- 3449US5249333AVacuum cleaning toolFEDAG ROMANSHORN FA·Filed 1992·Granted Oct 5, 1993·19 cites·7 claims
- 3546USD424260SManual turbobrushDUEPRO AG·Filed 1999·Granted May 2, 2000·5 cites·1 claims
- 3646US5267370ASuction device for liquidsFEDAG ROMANSHORN FA·Filed 1991·Granted Dec 7, 1993·17 cites·20 claims
- 3746US2005115014A1Cleaning Tool for Floor Surfaces Having an Illumination Element for a Working AreaDUEPRO AG·Filed 2004·Application pending·0 cites
- 3842US2002124334A1Cleaning device for smooth floor surfacesDUEPRO AG·Filed 2002·Application pending·0 cites
- 3929US4827558AVacuum conduit arrangement for a central dust-collecting systemDUEPRO AG·Filed 1987·Granted May 9, 1989·0 cites·20 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →