Growing community of inventors

Placerville, CA, United States of America

Robert D Bertin

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 = 8

Robert D BertinWilliam D Nielsen, Jr (1 patent)Robert D BertinDiane M Ryan (1 patent)Robert D BertinRobert D Bertin (1 patent)William D Nielsen, JrWilliam D Nielsen, Jr (4 patents)Diane M RyanDiane M Ryan (2 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Brush Wellman, Inc. (1 from 55 patents)


1 patent:

1. 6527512 - Mud motor

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1/9/2026
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