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Minnetonka, MN, United States of America

Robert A Bertelsen

Average Co-Inventor Count = 2.00

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 = 166

Robert A BertelsenDouglas L Olsen (1 patent)Robert A BertelsenDavid J Paulson (1 patent)Robert A BertelsenRobert A Bertelsen (2 patents)Douglas L OlsenDouglas L Olsen (5 patents)David J PaulsonDavid J Paulson (1 patent)
..
Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Osmonics, Incorporated (2 from 21 patents)


2 patents:

1. 4846970 - Cross-flow filtration membrane test unit

2. 4839037 - Tapered, spirally wound filter cartridge and method of making same

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1/19/2026
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