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Karunasena A. Alahapperuma

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  • Woodbury, MN, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Clear adhesive sheet
    • Patent number 6,759,121
    • Issue date Jul 6, 2004
    • 3M Innovative Properties Company
    • Karunasena A. Alahapperuma
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    Semiconductor wafer processing tapes
    • Patent number 6,478,918
    • Issue date Nov 12, 2002
    • 3M Innovative Properties Company
    • Richard E. Bennett
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Clear adhesive sheet
    • Patent number 6,472,065
    • Issue date Oct 29, 2002
    • 3M Innovative Properties Company
    • Karunasena A. Alahapperuma
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    Semiconductor wafer processing tapes
    • Patent number 6,235,387
    • Issue date May 22, 2001
    • 3M Innovative Properties Company
    • Richard E. Bennett
    • H01 - BASIC ELECTRIC ELEMENTS

Patents Applicationslast 30 patents

  • Information Patent Application

    Clear adhesive sheet
    • Publication number 20030108738
    • Publication date Jun 12, 2003
    • 3M Innovative Properties Company
    • Karunasena A. Alahapperuma
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Application

    Semiconductor wafer processing tapes
    • Publication number 20010016257
    • Publication date Aug 23, 2001
    • 3M Innovative Properties Company
    • Richard E. Bennett
    • H01 - BASIC ELECTRIC ELEMENTS