Growing community of inventors

North Manchester, IN, United States of America

John D Rohrer

Average Co-Inventor Count = 1.50

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 = 35

John D RohrerShirley L Parker (2 patents)John D RohrerJohn D Rohrer (3 patents)Shirley L ParkerShirley L Parker (2 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Parker Industries, Inc. (3 from 4 patents)


3 patents:

1. 4199075 - Hinge structure for refuse containers

2. 3997215 - Gravity bed trailer

3. 3994512 - Undercarriage for grain buggy or farm wagon

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as of
1/10/2026
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