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ANDREW L. TSANG

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  • LOWELL, MA, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Safety switch and associated methods
    • Patent number 11,075,046
    • Issue date Jul 27, 2021
    • Rockwell Automation Technologies, Inc.
    • Andrew L Tsang
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Safety switch and associated methods
    • Patent number 10,665,412
    • Issue date May 26, 2020
    • Rockwell Automation Technologies, Inc.
    • Andrew L. Tsang
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Safety switch and associated methods
    • Patent number 10,304,648
    • Issue date May 28, 2019
    • Rockwell Automation Technologies, Inc.
    • Andrew L Tsang
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Safety switch with imbalance test
    • Patent number 10,072,997
    • Issue date Sep 11, 2018
    • Rockwell Automation Technologies, Inc.
    • Todd Bubar
    • G01 - MEASURING TESTING
  • Information Patent Grant

    Safety switch and associated methods
    • Patent number 9,824,841
    • Issue date Nov 21, 2017
    • Rockwell Automation Technologies, Inc.
    • Andrew L Tsang
    • H03 - BASIC ELECTRONIC CIRCUITRY

Patents Applicationslast 30 patents

  • Information Patent Application

    SAFETY SWITCH AND ASSOCIATED METHODS
    • Publication number 20200273651
    • Publication date Aug 27, 2020
    • Rockwell Automation Technologies, Inc.
    • ANDREW L. TSANG
    • G08 - SIGNALLING
  • Information Patent Application

    SAFETY SWITCH AND ASSOCIATED METHODS
    • Publication number 20190244780
    • Publication date Aug 8, 2019
    • Rockwell Automation Technologies, Inc.
    • ANDREW L. TSANG
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    SAFETY SWITCH AND ASSOCIATED METHODS
    • Publication number 20180075995
    • Publication date Mar 15, 2018
    • Rockwell Automation Technologies, Inc.
    • ANDREW L. TSANG
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    SAFETY SWITCH WITH IMBALANCE TEST
    • Publication number 20170248481
    • Publication date Aug 31, 2017
    • Rockwell Automation Technologies, Inc.
    • TODD BUBAR
    • G01 - MEASURING TESTING
  • Information Patent Application

    SAFETY SWITCH AND ASSOCIATED METHODS
    • Publication number 20170140890
    • Publication date May 18, 2017
    • Rockwell Automation Technologies Inc.
    • ANDREW L. TSANG
    • H01 - BASIC ELECTRIC ELEMENTS