Inventor · disambiguated record
Ronald W. Lehman
Also filed as: LEHMAN RONALD W
9 granted patents·151 citations·filing 1990–2018
87Inventor score
Files withTENNANT CO9
Top patents by PatentIndex Score
9 records- 0187US5088149AVacuum powered scrub headTENNANT CO·Filed 1990·Granted Feb 18, 1992·85 cites·12 claims
- 0284US10092158B2Surface maintenance machine with a quick alignment mechanism for a cleaning toolTENNANT CO·Filed 2016·Granted Oct 9, 2018·5 cites·29 claims
- 0379US10405723B2Surface maintenance machineTENNANT CO·Filed 2016·Granted Sep 10, 2019·4 cites·22 claims
- 0474US6428590B1Filter system for mobile debris collection machineTENNANT CO·Filed 2000·Granted Aug 6, 2002·34 cites·16 claims
- 0560US7025834B2Retractable broom and dust skirtTENNANT CO·Filed 2002·Granted Apr 11, 2006·10 cites·14 claims
- 0653US10881260B2Surface maintenance machine with a quick alignment mechanism for a cleaning toolTENNANT CO·Filed 2018·Granted Jan 5, 2021·0 cites·14 claims
- 0751US10765286B2Surface maintenance machineTENNANT CO·Filed 2017·Granted Sep 8, 2020·0 cites·20 claims
- 0849US10456003B2Surface maintenance machineTENNANT CO·Filed 2016·Granted Oct 29, 2019·0 cites·23 claims
- 0940US5996173AIncreased litter storage for vacuum trash collectorTENNANT CO·Filed 1998·Granted Dec 7, 1999·13 cites·7 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →