TREA

Doug Birkholz

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  • Madison, WI, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Battery charger
    • Patent number D961505
    • Issue date Aug 23, 2022
    • Integra Life Sciences Corporation
    • Doug Birkholz
    • D13 - Equipment for production, distribution, or transformation of energy
  • Information Patent Grant

    Battery charger
    • Patent number D946505
    • Issue date Mar 22, 2022
    • Integra LifeSciences Corporation
    • Doug Birkholz
    • D13 - Equipment for production, distribution, or transformation of energy
  • Information Patent Grant

    Battery holster
    • Patent number D889410
    • Issue date Jul 7, 2020
    • Integra LifeSciences Corporation
    • Doug Birkholz
    • D13 - Equipment for production, distribution, or transformation of energy
  • Information Patent Grant

    Battery
    • Patent number D889395
    • Issue date Jul 7, 2020
    • Integra LifeSciences Corporation
    • Doug Birkholz
    • D13 - Equipment for production, distribution, or transformation of energy