Assignee
DUEPRO AG
CH·32 granted patents·4 pending applications·731 citations·filing 1978–2007
Top patents by PatentIndex Score
36 records- 0190USD457696SVacuum cleaning toolDUEPRO AG·Filed 2001·Granted May 21, 2002·44 cites·1 claims
- 0288US4173807ACleaning implementDUEPRO AG·Filed 1978·Granted Nov 13, 1979·67 cites·16 claims
- 0386US6550099B2Vacuum cleaning tool with exchangeable vacuum shoesDUEPRO AG·Filed 2001·Granted Apr 22, 2003·48 cites·24 claims
- 0486USD277325SVacuum cleanerDUEPRO AG·Filed 1982·Granted Jan 22, 1985·24 cites·1 claims
- 0582USD312904SVacuum cleaner nozzleDUEPRO AG·Filed 1989·Granted Dec 11, 1990·19 cites·1 claims
- 0681US7941893B2Vacuum cleaning tool and method for its operationDUEPRO AG·Filed 2007·Granted May 17, 2011·12 cites·12 claims
- 0781US7316050B2Vacuum cleaning tool having an exchangeable attachmentDUEPRO AG·Filed 2003·Granted Jan 8, 2008·29 cites·23 claims
- 0880US4517705ASuction device for cleaning textile floor coveringsDUEPRO AG·Filed 1983·Granted May 21, 1985·68 cites·35 claims
- 0979US6134745AVacuum cleaning tool having a brush roller that can be pivoted outDUEPRO AG·Filed 1999·Granted Oct 24, 2000·52 cites·12 claims
- 1072US4209872ACleaning implementDUEPRO AG·Filed 1978·Granted Jul 1, 1980·34 cites·22 claims
- 1171USD283066STop portion for a canister-type suction apparatusDUEPRO AG·Filed 1983·Granted Mar 18, 1986·10 cites·1 claims
- 1271US4370777AElectric motor control for vacuum cleanerDUEPRO AG·Filed 1980·Granted Feb 1, 1983·34 cites·5 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
- 1566US5014386ASuction nozzle, with a brush, for a vacuum cleanerDUEPRO AG·Filed 1990·Granted May 14, 1991·27 cites·6 claims
- 1665USD283065STop portion for a canister-type suction apparatusDUEPRO AG·Filed 1983·Granted Mar 18, 1986·8 cites·1 claims
- 1763US6615445B2Vacuum cleaning tool with direct flow turbineDUEPRO AG·Filed 2001·Granted Sep 9, 2003·12 cites·20 claims
- 1862US5950275AVacuum cleaning tool for a vacuum cleaning apparatusDUEPRO AG·Filed 1998·Granted Sep 14, 1999·29 cites·7 claims
- 1961US4749389AMethod and apparatus for humidifying and purifying the air of a roomDUEPRO AG·Filed 1987·Granted Jun 7, 1988·23 cites·22 claims
- 2060US5039133ASuction nozzle coupling having rotatably mounted therein a connector for a suction hoseDUEPRO AG·Filed 1990·Granted Aug 13, 1991·30 cites·10 claims
- 2159US4776059AVacuum-cleaning apparatusDUEPRO AG·Filed 1988·Granted Oct 11, 1988·25 cites·20 claims
- 2257US6813809B2Vacuum cleaning tool with rotating brush rollerDUEPRO AG·Filed 2002·Granted Nov 9, 2004·7 cites·18 claims
- 2357US6477735B2Vacuum cleaning tool with an outlet rampDUEPRO AG·Filed 2001·Granted Nov 12, 2002·7 cites·21 claims
- 2456USD306789SBrush-type suction nozzleDUEPRO AG·Filed 1987·Granted Mar 20, 1990·7 cites·1 claims
- 2553US4537424ACleaning apparatusDUEPRO AG·Filed 1982·Granted Aug 27, 1985·21 cites·11 claims
- 2652USD427398SVacuum turbobrushDUEPRO AG·Filed 1999·Granted Jun 27, 2000·7 cites·1 claims
- 2752US2007056667A1Wheel for a Floor SurfaceDUEPRO AG·Filed 2006·Application pending·0 cites
- 2851US7246410B2Vacuum cleaning tool having an air turbine with stabilizing air streamDUEPRO AG·Filed 2003·Granted Jul 24, 2007·2 cites·12 claims
- 2951US7246408B2Cleaning tool with rotatably driven working toolDUEPRO AG·Filed 2003·Granted Jul 24, 2007·2 cites·20 claims
- 3051US2006179606A1Vacuum Cleaning Tool, Especially Hand-Held Nozzle, for a Vacuum CleanerDUEPRO AG·Filed 2006·Application pending·0 cites
- 3146USD424260SManual turbobrushDUEPRO AG·Filed 1999·Granted May 2, 2000·5 cites·1 claims
- 3246US2005115014A1Cleaning Tool for Floor Surfaces Having an Illumination Element for a Working AreaDUEPRO AG·Filed 2004·Application pending·0 cites
- 3342US2002124334A1Cleaning device for smooth floor surfacesDUEPRO AG·Filed 2002·Application pending·0 cites
- 3438US6151752AVacuum cleaner headDUEPRO AG·Filed 1999·Granted Nov 28, 2000·15 cites·17 claims
- 3538US5035154AAdjustment mechanism for a friction drive unitDUEPRO AG·Filed 1990·Granted Jul 30, 1991·8 cites·15 claims
- 3629US4827558AVacuum conduit arrangement for a central dust-collecting systemDUEPRO AG·Filed 1987·Granted May 9, 1989·0 cites·20 claims
Join the waitlist — get patent alerts
Get an alert when DUEPRO AG files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →