Growing community of inventors

Fargo, ND, United States of America

Melvyn Irving Simpson

Average Co-Inventor Count = 2.40

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

Melvyn Irving SimpsonAndrew G Kallianos (2 patents)Melvyn Irving SimpsonEverett W Southwick (1 patent)Melvyn Irving SimpsonMelvyn Irving Simpson (2 patents)Andrew G KallianosAndrew G Kallianos (5 patents)Everett W SouthwickEverett W Southwick (17 patents)
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Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Liggett Group Inc. (2 from 36 patents)


2 patents:

1. 4163453 - 7-Alkoxy-1,2-benzopyrones as tobacco flavorants

2. 4091823 - Cyclogeraniol and derivatives thereof as tobacco flavorants

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as of
12/17/2025
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