Growing community of inventors

Houston, TX, United States of America

Donald A Hayes

Average Co-Inventor Count = 3.00

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

Donald A Hayes ↔ Lyle D Finn (1 patent)Donald A Hayes ↔ Carl R Brinkmann (1 patent)Donald A HayesDonald A Hayes (1 patent)Lyle D FinnLyle D Finn (7 patents)Carl R BrinkmannCarl R Brinkmann (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Exxon Production Research Company (1 from 601 patents)


1 patent:

1. 4430023 - Rope guiding device

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as of
12/17/2025
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