Growing community of inventors

Deerfield, IL, United States of America

Peter Hefner

Average Co-Inventor Count = 5.00

ph-index = 2

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 = 15

Peter HefnerMatthew E Petrick (3 patents)Peter HefnerJohn W Poremba (3 patents)Peter HefnerMark Anthony Kinsley (3 patents)Peter HefnerJohn Jaqua (3 patents)Peter HefnerMatthew Petrick (0 patent)Peter HefnerPeter Hefner (3 patents)Matthew E PetrickMatthew E Petrick (15 patents)John W PorembaJohn W Poremba (10 patents)Mark Anthony KinsleyMark Anthony Kinsley (8 patents)John JaquaJohn Jaqua (5 patents)Matthew PetrickMatthew Petrick (0 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Bretford Manufacturing, Inc. (3 from 78 patents)


3 patents:

1. D660623 - Drawer for storing handheld electronic devices

2. 8190806 - System for maintaining large numbers of handheld electronic devices

3. 7844770 - Hub structure for enabling communication with a large number of handheld electronic devices

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as of
1/19/2026
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