Growing community of inventors

Chicago, IL, United States of America

John Robert Visk

Average Co-Inventor Count = 2.00

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 = 9

John Robert ViskScott Padiak (2 patents)John Robert ViskThomas M Conway (2 patents)John Robert ViskPaul Charle Evans (2 patents)John Robert ViskJohn Robert Visk (3 patents)Scott PadiakScott Padiak (36 patents)Thomas M ConwayThomas M Conway (23 patents)Paul Charle EvansPaul Charle Evans (23 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Cormark, Inc. (2 from 36 patents)

2. Fleming Sales Company, Inc. (1 from 15 patents)


3 patents:

1. 7284740 - Rotating sign mount with automatic return

2. 7124993 - Rotating sign mount with automatic return

3. 5771930 - Sprinkler and root feeder valve assembly

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as of
12/15/2025
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