Growing community of inventors

Kalamazoo, MI, United States of America

Hans A Draayer

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 = 10

Hans A Draayer ↔ Shelly Lynn Shields (2 patents)Hans A Draayer ↔ Michael J Huether (2 patents)Hans A DraayerHans A Draayer (2 patents)Shelly Lynn ShieldsShelly Lynn Shields (9 patents)Michael J HuetherMichael J Huether (3 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Pharmacia & Upjohn Company (2 from 523 patents)


2 patents:

1. 7879336 - Vaccines and methods to treat canine influenza

2. 7722884 - Vaccines and methods to treat canine influenza

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as of
1/2/2026
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