Growing community of inventors

Saint Paul, MN, United States of America

Robert Widerski

Average Co-Inventor Count = 6.28

ph-index = 4

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 = 157

Robert WiderskiGary Ray Gillingham (7 patents)Robert WiderskiThomas Richard Olson (7 patents)Robert WiderskiFred H Wahlquist (5 patents)Robert WiderskiErvin P Fuchs (5 patents)Robert WiderskiEugene D Wilson (5 patents)Robert WiderskiCharles Jensen (5 patents)Robert WiderskiRichard Lawrence Suydam (2 patents)Robert WiderskiRandall Allen Engelland (2 patents)Robert WiderskiRobert Widerski (7 patents)Gary Ray GillinghamGary Ray Gillingham (69 patents)Thomas Richard OlsonThomas Richard Olson (29 patents)Fred H WahlquistFred H Wahlquist (35 patents)Ervin P FuchsErvin P Fuchs (12 patents)Eugene D WilsonEugene D Wilson (12 patents)Charles JensenCharles Jensen (5 patents)Richard Lawrence SuydamRichard Lawrence Suydam (14 patents)Randall Allen EngellandRandall Allen Engelland (14 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Donaldson Comapny, Inc. (7 from 1,409 patents)


7 patents:

1. 10967320 - Pulse jet air cleaner systems; components; and, methods

2. 10512870 - Pulse jet air cleaner systems, components, and, methods

3. 9757673 - Pulse jet air cleaner systems, components, and, methods

4. 9108135 - Pulse jet air cleaner systems; components; and, methods

5. 8404021 - Pulse jet air cleaner system; components; and, methods

6. 8382876 - Air cleaner arrangement; serviceable filter cartridge; and, methods

7. 8048188 - Air cleaner arrangements; serviceable filter cartridge; and, methods

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as of
1/13/2026
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