Growing community of inventors

Concord, CA, United States of America

Daniel E Houk

Average Co-Inventor Count = 6.00

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 = 15

Daniel E Houk ↔ Maura-Ann H Matthews (1 patent)Daniel E Houk ↔ David W Traylor (1 patent)Daniel E Houk ↔ James R Ryland (1 patent)Daniel E Houk ↔ Lee R Williams (1 patent)Daniel E Houk ↔ Ulrich P Ernst (1 patent)Daniel E HoukDaniel E Houk (1 patent)Maura-Ann H MatthewsMaura-Ann H Matthews (3 patents)David W TraylorDavid W Traylor (2 patents)James R RylandJames R Ryland (2 patents)Lee R WilliamsLee R Williams (1 patent)Ulrich P ErnstUlrich P Ernst (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Somatogen, Inc. (1 from 24 patents)


1 patent:

1. 5665869 - Method for the rapid removal of protoporphyrin from protoporphyrin

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as of
12/26/2025
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