David A. Weinzierl

Person

  • Mounds View, MN, US

Patents Grantslast 30 patents

  • Information Patent Grant

    Modem with firmware upgrade feature

    • Patent number 6,031,867
    • Issue date Feb 29, 2000
    • Multi-Tech Systems, Inc.
    • Greg Johnson
    • G06 - COMPUTING CALCULATING COUNTING
  • Information Patent Grant

    Power-conserving modem

    • Patent number 5,644,594
    • Issue date Jul 1, 1997
    • Multi-Tech Systems, Inc.
    • Greg Johnson
    • G06 - COMPUTING CALCULATING COUNTING
  • Information Patent Grant

    Peripheral connector

    • Patent number D364377
    • Issue date Nov 21, 1995
    • Multi-Tech Systems, Inc.
    • Greg Johnson
    • D13 - Equipment for production, distribution, or transformation of energy
  • Information Patent Grant

    Protocol for communication of a data packet

    • Patent number 5,450,425
    • Issue date Sep 12, 1995
    • Multi-Tech Systems, Inc.
    • Timothy D. Gunn
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE