Growing community of inventors

Downingtown, PA, United States of America

William J Duffy, Jr

Average Co-Inventor Count = 2.25

ph-index = 3

The patent ph-index is calculated by counting the number of publications for which an author has been cited by other authors at least that same number of times.

Forward Citations = 101

William J Duffy, JrKenneth Miller, Jr (2 patents)William J Duffy, JrScott F Touchton (1 patent)William J Duffy, JrDonald L Peinetti (1 patent)William J Duffy, JrWilliam J Duffy, Jr (3 patents)Kenneth Miller, JrKenneth Miller, Jr (2 patents)Scott F TouchtonScott F Touchton (16 patents)Donald L PeinettiDonald L Peinetti (8 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Invisible Fence Company, Inc. (3 from 17 patents)


3 patents:

1. 5533469 - Programming apparatus for programmable animal control device

2. 5476729 - Electronic device having a removable battery pack assembly

3. 5445900 - Electronic device having a removable battery pack assembly

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as of
12/19/2025
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