Growing community of inventors

Louisville, CO, United States of America

Dave A Johnston

Average Co-Inventor Count = 7.00

ph-index = 2

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

Dave A Johnston ↔ Peter John Harrington (2 patents)Dave A Johnston ↔ Hiralal N Khatri (2 patents)Dave A Johnston ↔ Richard Robert Dauer (2 patents)Dave A Johnston ↔ Robert J Topping (2 patents)Dave A Johnston ↔ Jack Delbert Brown (2 patents)Dave A Johnston ↔ Gary K Rowe (2 patents)Dave A JohnstonDave A Johnston (2 patents)Peter John HarringtonPeter John Harrington (15 patents)Hiralal N KhatriHiralal N Khatri (14 patents)Richard Robert DauerRichard Robert Dauer (7 patents)Robert J ToppingRobert J Topping (7 patents)Jack Delbert BrownJack Delbert Brown (5 patents)Gary K RoweGary K Rowe (2 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. F. Hoffmann-la Roche Ag (1 from 168 patents)

2. Roche Colorado Corporation (1 from 18 patents)


2 patents:

1. 6765109 - Preparation of S-aryl-cysteine and its derivatives

2. 6229041 - Preparation of S-aryl-cysteine and its derivatives

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idiyas.com
as of
1/2/2026
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