Growing community of inventors

El Dorado, AR, United States of America

Preston E Spires

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 = 4

Preston E Spires ↔ John E Hill (1 patent)Preston E Spires ↔ James T Ayres (1 patent)Preston E Spires ↔ John L Burba, Iii (1 patent)Preston E SpiresPreston E Spires (1 patent)John E HillJohn E Hill (3 patents)James T AyresJames T Ayres (2 patents)John L Burba, IiiJohn L Burba, Iii (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Great Lakes Chemical Corporation (1 from 171 patents)


1 patent:

1. 5481042 - Processes producing methyl mercaptan

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12/30/2025
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