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Ron Lehman

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  • Rogers, MN, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Surface maintenance machine with a quick alignment mechanism for a...
    • Patent number 10,881,260
    • Issue date Jan 5, 2021
    • Tennant Company
    • Warren L. Larson
    • A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
  • Information Patent Grant

    Surface maintenance machine
    • Patent number 10,765,286
    • Issue date Sep 8, 2020
    • Tennant Company
    • Martin L. Dickrell
    • A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
  • Information Patent Grant

    Surface maintenance machine
    • Patent number 10,456,003
    • Issue date Oct 29, 2019
    • Tennant Company
    • Martin L. Dickrell
    • A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
  • Information Patent Grant

    Surface maintenance machine
    • Patent number 10,405,723
    • Issue date Sep 10, 2019
    • Tennant Company
    • John C. Ickes
    • A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
  • Information Patent Grant

    Surface maintenance machine with a quick alignment mechanism for a...
    • Patent number 10,092,158
    • Issue date Oct 9, 2018
    • Tennant Company
    • Warren L. Larson
    • A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
  • Information Patent Grant

    Floor sweeping and scrubbing machine
    • Patent number 7,448,114
    • Issue date Nov 11, 2008
    • Tennant Company
    • Michael T. Basham
    • A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
  • Information Patent Grant

    Retractable broom and dust skirt
    • Patent number 7,025,834
    • Issue date Apr 11, 2006
    • Tennant Company
    • Daniel L. Joynt
    • E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
  • Information Patent Grant

    Filter system for mobile debris collection machine
    • Patent number 6,428,590
    • Issue date Aug 6, 2002
    • Tennant Company
    • Ronald W. Lehman
    • E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
  • Information Patent Grant

    Increased litter storage for vacuum trash collector
    • Patent number 5,996,173
    • Issue date Dec 7, 1999
    • Tennant Company
    • Gregory J. Engel
    • E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
  • Information Patent Grant

    Vacuum powered scrub head
    • Patent number 5,088,149
    • Issue date Feb 18, 1992
    • Tennant Company
    • David W. Berg
    • A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...

Patents Applicationslast 30 patents

  • Information Patent Application

    SURFACE MAINTENANCE MACHINE WITH A QUICK ALIGNMENT MECHANISM FOR A...
    • Publication number 20190069750
    • Publication date Mar 7, 2019
    • TENNANT COMPANY
    • Warren L. Larson
    • A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
  • Information Patent Application

    SURFACE MAINTENANCE MACHINE
    • Publication number 20170360270
    • Publication date Dec 21, 2017
    • TENNANT COMPANY
    • Martin L. Dickrell
    • A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
  • Information Patent Application

    SURFACE MAINTENANCE MACHINE
    • Publication number 20170164805
    • Publication date Jun 15, 2017
    • TENNANT COMPANY
    • John C. Ickes
    • A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
  • Information Patent Application

    SURFACE MAINTENANCE MACHINE
    • Publication number 20170164804
    • Publication date Jun 15, 2017
    • TENNANT COMPANY
    • Martin L. Dickrell
    • A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
  • Information Patent Application

    SURFACE MAINTENANCE MACHINE WITH A QUICK ALIGNMENT MECHANISM FOR A...
    • Publication number 20160338563
    • Publication date Nov 24, 2016
    • TENNANT COMPANY
    • Warren L. Larson
    • A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
  • Information Patent Application

    Floor sweeping and scrubbing machine
    • Publication number 20060282975
    • Publication date Dec 21, 2006
    • TENNANT COMPANY
    • Michael T. Basham
    • A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
  • Information Patent Application

    Retractable broom and dust skirt
    • Publication number 20040040104
    • Publication date Mar 4, 2004
    • Daniel L. Joynt
    • E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES