Growing community of inventors

Sterling, IL, United States of America

David A Spangler

Average Co-Inventor Count = 2.84

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 = 28

David A SpanglerLucas Krueger (4 patents)David A SpanglerMary Grzemski (4 patents)David A SpanglerGbenga Ayangbile (4 patents)David A SpanglerJames F Tobey, Jr (4 patents)David A SpanglerThomas E Witzig (2 patents)David A SpanglerPatrick K Brown (2 patents)David A SpanglerDavid A Spangler (7 patents)Lucas KruegerLucas Krueger (4 patents)Mary GrzemskiMary Grzemski (4 patents)Gbenga AyangbileGbenga Ayangbile (4 patents)James F Tobey, JrJames F Tobey, Jr (4 patents)Thomas E WitzigThomas E Witzig (4 patents)Patrick K BrownPatrick K Brown (2 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Agri-king, Inc. (5 from 5 patents)

2. Other (2 from 832,812 patents)

3. Mayo Foundation for Medical Education and Research (1 from 1,746 patents)


7 patents:

1. 11008534 - Bacteria and enzymes produced therefrom and methods of using same

2. 10683473 - Bacteria and enzymes produced therefrom and methods of using same

3. 10604727 - Bacteria and enzymes produced therefrom and methods of using same

4. 10138444 - Bacteria and enzymes produced therefrom and methods of using same

5. 6841149 - Probiotic mixture intended for monogastric animals to control intestinal flora populations

6. 6524574 - Probiotic mixture intended for monogastric animals to control intestinal flora populations

7. 5335424 - Gauge for measuring radial distances on a cylindrical surface

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as of
12/18/2025
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