Growing community of inventors

Batavia, OH, United States of America

Harold F Flannery

Average Co-Inventor Count = 3.00

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 = 126

Harold F FlanneryLouis E Wagner (3 patents)Harold F FlanneryRandolph W Rakoczynski (3 patents)Harold F FlanneryHarold F Flannery (3 patents)Louis E WagnerLouis E Wagner (5 patents)Randolph W RakoczynskiRandolph W Rakoczynski (3 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Environmental Design, Inc. (2 from 2 patents)

2. Ecological Professional Industries, Inc. (1 from 1 patent)


3 patents:

1. 4624604 - Groundwater protection system

2. 4543013 - Groundwater protection system

3. 4430021 - Secure chemical waste landfill

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as of
12/16/2025
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