Growing community of inventors

Quincy, IL, United States of America

David D Hall

Average Co-Inventor Count = 4.00

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 = 6

David D Hall ↔ Erkki Virtanen (1 patent)David D Hall ↔ James L McNaughton (1 patent)David D Hall ↔ Mika Koivistoinen (1 patent)David D HallDavid D Hall (1 patent)Erkki VirtanenErkki Virtanen (6 patents)James L McNaughtonJames L McNaughton (3 patents)Mika KoivistoinenMika Koivistoinen (3 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Cultor Corporation (1 from 31 patents)


1 patent:

1. 5773052 - Betaine as a substitute for supplementary methionine in animal diets

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as of
12/13/2025
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