Inventor · disambiguated record
Richard W. Wellens
Also filed as: PETERSON LEGAL REPRESENTATIVE · WELLENS RICHARD W · WELLENS RICHARD WILLIAM
8 granted patents·2 pending applications·227 citations·filing 2002–2019
88Inventor score
Top patents by PatentIndex Score
10 records- 0193US7665174B2Cleaning head for use in a floor cleaning machineTENNANT CO·Filed 2006·Granted Feb 23, 2010·54 cites·20 claims
- 0292US7967914B2Method 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
- 0391US6662402B2Apparatus 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
- 0489US7448114B2Floor sweeping and scrubbing machineTENNANT CO·Filed 2006·Granted Nov 11, 2008·34 cites·19 claims
- 0583US7662199B2Cyclonic filter for surface maintenance machineTENNANT CO·Filed 2008·Granted Feb 16, 2010·12 cites·13 claims
- 0672US9498099B2Surface maintenance vehicle with compact side brush assemblyTENNANT CO·Filed 2013·Granted Nov 22, 2016·5 cites·29 claims
- 0761US8256061B2Filter shaker assembly for sweeping machineWILMO MICHAEL STEWART·Filed 2009·Granted Sep 4, 2012·2 cites·13 claims
- 0858US7896936B2Filter cleaning apparatusTENNANT CO·Filed 2008·Granted Mar 1, 2011·1 cites·20 claims
- 0946US2019328190A1High performance handheld liquid suction deviceTENNANT CO·Filed 2019·Application pending·0 cites
- 1043US2004172769A1Method and apparatus for cleaning fabrics, floor coverings, and bare floor surfaces utilizing a soil transfer cleaning mediumFiled 2003·Application pending·0 cites
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