Growing community of inventors

Lincoln, NE, United States of America

Richard S Hansen

Average Co-Inventor Count = 3.00

ph-index = 1

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 = 25

Richard S Hansen ↔ Alessio G Pretto (1 patent)Richard S Hansen ↔ Louis J Keester (1 patent)Richard S HansenRichard S Hansen (1 patent)Alessio G PrettoAlessio G Pretto (3 patents)Louis J KeesterLouis J Keester (3 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Goldenrod Corporation (1 from 4 patents)

2. Addax, Inc. (1 from 4 patents)


1 patent:

1. 5379964 - Composite expandable shaft

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12/18/2025
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