RJ

Robert D. Johnston

DC Donaldson Company: 1 patents #46 of 146Top 35%
📍 Lakeville, MN: #18 of 61 inventorsTop 30%
🗺 Minnesota: #1,731 of 5,562 inventorsTop 35%
Overall (2025): #237,719 of 469,880Top 55%
1
Patents 2025

Issued Patents 2025

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
12214307 Air cleaner assemblies and methods of use Steven K. Campbell, David J. Burton, Benny K. Nelson, Timothy J. Wessels, Daniel E. Adamek 2025-02-04