TREA

David C. May

Follow

Person

  • Stillwater, MN, US
People

Patents Grantslast 30 patents

  • Information Patent Grant

    Signage overlay article
    • Patent number 9,837,001
    • Issue date Dec 5, 2017
    • 3M Innovative Properties Company
    • Sithya S. Khieu
    • G02 - OPTICS
  • Information Patent Grant

    Liquid pavement marking compositions
    • Patent number 6,790,880
    • Issue date Sep 14, 2004
    • 3M Innovative Properties Company
    • Mark D. Purgett
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    Particle dispenser with fluid assist to control particle velocity f...
    • Patent number 6,511,259
    • Issue date Jan 28, 2003
    • 3M Innovative Properties Company
    • Sithya S. Khieu
    • E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
  • Information Patent Grant

    Liquid pavement marking compositions
    • Patent number 6,451,874
    • Issue date Sep 17, 2002
    • 3M Innovative Properties Company
    • Mark D. Purgett
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    Liquid pavement marking compositions
    • Patent number 6,166,106
    • Issue date Dec 26, 2000
    • 3M Innovative Properties Company
    • Mark D. Purgett
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    Raised retroreflective pavement marker
    • Patent number 6,126,360
    • Issue date Oct 3, 2000
    • 3M Innovative Properties Company
    • David C. May
    • E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
  • Information Patent Grant

    Encased retroreflective elements and method for making
    • Patent number 5,835,271
    • Issue date Nov 10, 1998
    • Minnesota Mining and Manufacturing Company
    • Larry K. Stump
    • E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
  • Information Patent Grant

    Durable retroreflective elements
    • Patent number 5,774,265
    • Issue date Jun 30, 1998
    • Minnesota Mining and Manufacturing Company
    • James P. Mathers
    • E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
  • Information Patent Grant

    Retroreflective sheeting having an abrasion resistant ceramer coating
    • Patent number 5,677,050
    • Issue date Oct 14, 1997
    • Minnesota Mining and Manufacturing Company
    • Zayn Bilkadi
    • G02 - OPTICS
  • Information Patent Grant

    Fiber reinforced raised pavement marker and method of making
    • Patent number 5,667,335
    • Issue date Sep 16, 1997
    • Minnesota Mining and Manufacturing Commpany
    • Sithya S. Khieu
    • E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
  • Information Patent Grant

    Method for making retroreflective article with dual reflectors
    • Patent number 5,571,362
    • Issue date Nov 5, 1996
    • Minnesota Mining and Manufacturing Company
    • Kathleen A. Hachey
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
  • Information Patent Grant

    Retroreflective article with dual reflector
    • Patent number 5,417,515
    • Issue date May 23, 1995
    • Minnesota Mining and Manufacturing Company
    • Kathleen A. Hachey
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
  • Information Patent Grant

    Pavement markers with silicone adhesive
    • Patent number 5,391,015
    • Issue date Feb 21, 1995
    • Minnesota Mining and Manufacturing Company
    • James M. Kaczmarczik
    • E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
  • Information Patent Grant

    Pavement markers with silicone adhesive
    • Patent number 5,310,278
    • Issue date May 10, 1994
    • Minnesota Mining and Manufacturing Company
    • James M. Kaczmarczik
    • E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
  • Information Patent Grant

    Retroreflective pavement marker
    • Patent number 4,875,798
    • Issue date Oct 24, 1989
    • Minnesota Mining and Manufacturing Company
    • David C. May
    • E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
  • Information Patent Grant

    Pavement marking tape
    • Patent number 4,648,689
    • Issue date Mar 10, 1987
    • Minnesota Mining and Manufacturing Company
    • David C. May
    • E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
  • Information Patent Grant

    Elastomeric pavement marker
    • Patent number 4,534,673
    • Issue date Aug 13, 1985
    • Minnesota Mining and Manufacturing Company
    • David C. May
    • E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
  • Information Patent Grant

    Elastomeric pavement marker having improved configuration
    • Patent number 4,521,129
    • Issue date Jun 4, 1985
    • Minnesota Mining and Manufacturing Company
    • Thomas D. Krech
    • E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
  • Information Patent Grant

    Vapor-permeable retroreflective sheeting
    • Patent number 4,418,110
    • Issue date Nov 29, 1983
    • Minnesota Mining and Manufacturing
    • David C. May
    • G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS

Patents Applicationslast 30 patents