Growing community of inventors

Brooklyn Park, MN, United States of America

David L Roberts

Average Co-Inventor Count = 6.00

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 = 29

David L Roberts ↔ Wayne M Wagner (1 patent)David L Roberts ↔ Bruce B Hoppenstedt (1 patent)David L Roberts ↔ Steven D Schmeichel (1 patent)David L Roberts ↔ John S Wiese (1 patent)David L Roberts ↔ Joanne E Kleinhenz (1 patent)David L RobertsDavid L Roberts (1 patent)Wayne M WagnerWayne M Wagner (81 patents)Bruce B HoppenstedtBruce B Hoppenstedt (18 patents)Steven D SchmeichelSteven D Schmeichel (7 patents)John S WieseJohn S Wiese (4 patents)Joanne E KleinhenzJoanne E Kleinhenz (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Donaldson Comapny, Inc. (1 from 1,404 patents)


1 patent:

1. 4580657 - Integral fluted tube for sound suppression and exhaust ejection

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as of
12/20/2025
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