Assignee
TENNANT CO
US·243 granted patents·37 pending applications·9,353 citations·filing 1973–2025
Top patents by PatentIndex Score
280 records- 0197US8025786B2Method of generating sparged, electrochemically activated liquidTENNANT CO·Filed 2007·Granted Sep 27, 2011·38 cites·21 claims
- 0297US7199711B2Mobile floor cleaner data communicationTENNANT CO·Filed 2005·Granted Apr 3, 2007·70 cites·20 claims
- 0397US6421870B1Stacked tools for overthrow sweepingTENNANT CO·Filed 2000·Granted Jul 23, 2002·132 cites·27 claims
- 0497US4996468AAutomated guided vehicleTENNANT CO·Filed 1989·Granted Feb 26, 1991·265 cites·9 claims
- 0596US6705332B2Hard floor surface cleaner utilizing an aerated cleaning liquidTENNANT CO·Filed 2002·Granted Mar 16, 2004·122 cites·16 claims
- 0696US5155684AGuiding an unmanned vehicle by reference to overhead featuresTENNANT CO·Filed 1991·Granted Oct 13, 1992·393 cites·43 claims
- 0796US4846297AAutomated guided vehicleTENNANT CO·Filed 1988·Granted Jul 11, 1989·186 cites·20 claims
- 0896US4790402AAutomated guided vehicleTENNANT CO·Filed 1987·Granted Dec 13, 1988·173 cites·26 claims
- 0995USD674405SDisplay panel portion with a computer icon imageTENNANT CO·Filed 2011·Granted Jan 15, 2013·131 cites·1 claims
- 1095US7891046B2Apparatus for generating sparged, electrochemically activated liquidTENNANT CO·Filed 2007·Granted Feb 22, 2011·40 cites·26 claims
- 1195US7836543B2Method and apparatus for producing humanly-perceptable indicator of electrochemical properties of an output cleaning liquidTENNANT CO·Filed 2007·Granted Nov 23, 2010·24 cites·12 claims
- 1295US6671925B2Chemical dispenser for a hard floor surface cleanerTENNANT CO·Filed 2002·Granted Jan 6, 2004·116 cites·41 claims
- 1395US6585827B2Apparatus and method of use for cleaning a hard floor surface utilizing an aerated cleaning liquidTENNANT CO·Filed 2001·Granted Jul 1, 2003·122 cites·36 claims
- 1495US5319828ALow profile scrubberTENNANT CO·Filed 1992·Granted Jun 14, 1994·232 cites·6 claims
- 1595US5093955ACombined sweeper and scrubberTENNANT CO·Filed 1990·Granted Mar 10, 1992·289 cites·7 claims
- 1695US4624026ASurface maintenance machine with rotary lipTENNANT CO·Filed 1982·Granted Nov 25, 1986·130 cites·16 claims
- 1795USD273621SCombination sweeper-scrubber floor machineTENNANT CO·Filed 1982·Granted Apr 24, 1984·60 cites·1 claims
- 1894US8025787B2Method and apparatus for generating, applying and neutralizing an electrochemically activated liquidTENNANT CO·Filed 2007·Granted Sep 27, 2011·22 cites·19 claims
- 1994US8016996B2Method of producing a sparged cleaning liquid onboard a mobile surface cleanerTENNANT CO·Filed 2007·Granted Sep 13, 2011·25 cites·23 claims
- 2094US6735811B2Cleaning liquid dispensing system for a hard floor surface cleanerTENNANT CO·Filed 2002·Granted May 18, 2004·128 cites·59 claims
- 2194US4817233AScrubber squeegees for scrubbing forward and backwardTENNANT CO·Filed 1988·Granted Apr 4, 1989·108 cites·8 claims
- 2293US7665174B2Cleaning head for use in a floor cleaning machineTENNANT CO·Filed 2006·Granted Feb 23, 2010·54 cites·20 claims
- 2393US7051399B2Cleaner cartridgeTENNANT CO·Filed 2002·Granted May 30, 2006·82 cites·57 claims
- 2493US6735812B2Dual mode carpet cleaning apparatus utilizing an extraction device and a soil transfer cleaning mediumTENNANT CO·Filed 2003·Granted May 18, 2004·211 cites·35 claims
- 2593US6662600B1Foamed cleaning liquid dispensing systemTENNANT CO·Filed 2002·Granted Dec 16, 2003·50 cites·16 claims
- 2693US4819676ACombination sweeping and scrubbing system and methodTENNANT CO·Filed 1986·Granted Apr 11, 1989·123 cites·23 claims
- 2793US4675935AControl and monitor for a floor maintenance deviceTENNANT CO·Filed 1986·Granted Jun 30, 1987·130 cites·21 claims
- 2892US8012339B2Hand-held spray bottle having an electrolyzer and method thereforTENNANT CO·Filed 2008·Granted Sep 6, 2011·17 cites·11 claims
- 2992US7967914B2Method and apparatus for cleaning fabrics, floor coverings, and bare floor surfaces utilizing a soil transfer mediumTENNANT CO·Filed 2009·Granted Jun 28, 2011·36 cites·18 claims
- 3092US5303448AHopper and filter chamber for direct forward throw sweeperTENNANT CO·Filed 1992·Granted Apr 19, 1994·227 cites·15 claims
- 3192US5212848ASqueegee bladeTENNANT CO·Filed 1992·Granted May 25, 1993·96 cites·7 claims
- 3291US6662402B2Apparatus for cleaning fabrics, floor coverings, and bare floor surfaces utilizing a soil transfer cleaning mediumTENNANT CO·Filed 2002·Granted Dec 16, 2003·83 cites·19 claims
- 3391US6530102B1Scrubber head anti-vibration mountingTENNANT CO·Filed 1999·Granted Mar 11, 2003·92 cites·27 claims
- 3491US5943730AScrubber vac-fan sealTENNANT CO·Filed 1997·Granted Aug 31, 1999·159 cites·6 claims
- 3591US4580313AWalk behind floor maintenance machineTENNANT CO·Filed 1983·Granted Apr 8, 1986·74 cites·22 claims
- 3691US4037289AScrubber squeegee apparatusTENNANT CO·Filed 1975·Granted Jul 26, 1977·88 cites·21 claims
- 3790US4345353AFiltering deviceTENNANT CO·Filed 1980·Granted Aug 24, 1982·73 cites·11 claims
- 3889USD855914SInterchangeable scrub brush or scrub pad for a floor maintenance vehicleTENNANT CO·Filed 2018·Granted Aug 6, 2019·6 cites·1 claims
- 3989US8007654B2Electrochemically activated anolyte and catholyte liquidTENNANT CO·Filed 2007·Granted Aug 30, 2011·15 cites·16 claims
- 4089US7448114B2Floor sweeping and scrubbing machineTENNANT CO·Filed 2006·Granted Nov 11, 2008·34 cites·19 claims
- 4189US6117200AElectromagnetic filter cleaning systemTENNANT CO·Filed 1998·Granted Sep 12, 2000·65 cites·13 claims
- 4289US4757566AControl of torque in floor maintenance tools by drive motor loadTENNANT CO·Filed 1987·Granted Jul 19, 1988·65 cites·14 claims
- 4389USD273622SFloor maintenance machineTENNANT CO·Filed 1982·Granted Apr 24, 1984·28 cites·1 claims
- 4489USD273620SPower sweeperTENNANT CO·Filed 1982·Granted Apr 24, 1984·28 cites·1 claims
- 4588US8029739B2Ultraviolet sanitation deviceTENNANT CO·Filed 2004·Granted Oct 4, 2011·49 cites·7 claims
- 4688US7172658B2Cleaning liquid dispensing in a mobile hard surface cleanerTENNANT CO·Filed 2005·Granted Feb 6, 2007·13 cites·42 claims
- 4788US6425958B1All surface cleanerTENNANT CO·Filed 2001·Granted Jul 30, 2002·104 cites·34 claims
- 4888US6202243B1Surface cleaning machine with multiple control positionsTENNANT CO·Filed 1999·Granted Mar 20, 2001·76 cites·11 claims
- 4988US5483718AFloor scrubbing machine having impact energy absorptionTENNANT CO·Filed 1994·Granted Jan 16, 1996·68 cites·17 claims
- 5088US5044043ASpeed and steering control for a floor maintenance machineTENNANT CO·Filed 1989·Granted Sep 3, 1991·76 cites·3 claims
Showing the top 50 of 280 patent records by PatentIndex Score.
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