William J. Duffy Jr.

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Downington, PA, US

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Patents Grantslast 30 patents

Information Patent Grant
Programming apparatus for programmable animal control device
- Patent number 5,533,469
- Issue date Jul 9, 1996
- Invisible Fence Company, Inc.
- Scott F. Touchton
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Electronic device having a removable battery pack assembly
- Patent number 5,476,729
- Issue date Dec 19, 1995
- Invisible Fence Company, Inc.
- Kenneth Miller
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Electronic device having a removable battery pack assembly
- Patent number 5,445,900
- Issue date Aug 29, 1995
- Invisible Fence Company, Inc.
- Kenneth Miller
- H01 - BASIC ELECTRIC ELEMENTS