Douglas A. Hopper

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Edwardsville, IL, US

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Patents Grantslast 30 patents

Information Patent Grant
Releasable self-locking clip arrangement interfacing with threaded...
- Patent number 6,070,913
- Issue date Jun 6, 2000
- Hubbel Incorporated
- Douglas A. Hopper
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Receptacle assembly having position retention tabs
- Patent number 5,951,309
- Issue date Sep 14, 1999
- Hubbell Incorporated
- Douglas A. Hopper
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Electrical connector pin device having wire spring insert
- Patent number 5,904,599
- Issue date May 18, 1999
- Hubbell Incorporated
- Michael W. Miller
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Electrical connector
- Patent number D406816
- Issue date Mar 16, 1999
- Hubbell Incorporated
- Douglas A. Hopper
- D13 - Equipment for production, distribution, or transformation of energy
Information Patent Grant
Handle assembly having self-adjustable axial length for coupling wi...
- Patent number 5,634,553
- Issue date Jun 3, 1997
- Hubbell Incorporated
- Douglas A. Hopper
- H01 - BASIC ELECTRIC ELEMENTS