Growing community of inventors

Ankeny, IA, United States of America

Richard D Hansen

Average Co-Inventor Count = 2.00

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 = 9

Richard D HansenJames Franklin Drake (1 patent)Richard D HansenRichard D Hansen (1 patent)James Franklin DrakeJames Franklin Drake (8 patents)
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Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Innovac Co. (1 from 1 patent)


1 patent:

1. 5665363 - Inoculation of animals with dried, pelleted biological materials

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as of
12/21/2025
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