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Steven K. Campbell

DC Donaldson Company: 4 patents #6 of 146Top 5%
📍 Lakeville, MN: #4 of 61 inventorsTop 7%
🗺 Minnesota: #272 of 5,562 inventorsTop 5%
Overall (2025): #29,293 of 469,880Top 7%
4
Patents 2025

Issued Patents 2025

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
12403419 Filter elements and assemblies Gunther Van De Poel 2025-09-02
12357934 Filter cartridges; air cleaner assemblies; housings; features; components; and, methods Hubert J. Rahn, David J. Burton 2025-07-15
12214307 Air cleaner assemblies and methods of use David J. Burton, Benny K. Nelson, Timothy J. Wessels, Daniel E. Adamek, Robert D. Johnston 2025-02-04
12186694 Filter cartridges; air cleaner assemblies; housings; features; components; and, methods Steven Scott Gieseke 2025-01-07