Growing community of inventors

Humble, TX, United States of America

Robert E Iversen

Average Co-Inventor Count = 5.00

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 = 12

Robert E Iversen ↔ Alfred Ostertag (1 patent)Robert E Iversen ↔ Craig R Hyland (1 patent)Robert E Iversen ↔ Steven R Radford (1 patent)Robert E Iversen ↔ Kenneth D Enever (1 patent)Robert E IversenRobert E Iversen (1 patent)Alfred OstertagAlfred Ostertag (17 patents)Craig R HylandCraig R Hyland (12 patents)Steven R RadfordSteven R Radford (10 patents)Kenneth D EneverKenneth D Enever (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Eastman Christensen (1 from 4 patents)


1 patent:

1. 4878548 - Nozzle retention system for a drill bit

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as of
12/20/2025
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