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Mark Belcher

DC Donaldson Company: 11 patents #118 of 695Top 20%
📍 Burnsville, MN: #74 of 632 inventorsTop 15%
🗺 Minnesota: #6,858 of 52,454 inventorsTop 15%
Overall (All Time): #438,361 of 4,157,543Top 15%
11
Patents All Time

Issued Patents All Time

Showing 1–11 of 11 patents

Patent #TitleCo-InventorsDate
12370486 Filter cartridge; components thereof; and methods Thomas D. Raether, Brian Zauner, Gabriel Safarian 2025-07-29
11623172 Filter cartridge; components thereof; and methods Thomas D. Raether, Brian Zauner, Gabriel Safarian 2023-04-11
10744445 Filter cartridge; components thereof; and methods Thomas D. Raether, Brian Zauner, Gabriel Safarian 2020-08-18
9751036 Filter cartridge; components thereof; and methods Thomas D. Raether, Brian Zauner, Gabriel Safarian 2017-09-05
9446340 Air filter cartridge Brian David Babcock, Heather M. Tate, Brain Zauner, Kyle W. Undesser, Douglas A. Wersal 2016-09-20
9415336 Filter cartridge with centerboard, dust collectors, and methods Matthew A. Kalis 2016-08-16
8741018 Filter cartridge with centerboard, dust collectors, and methods Matthew A. Kalis 2014-06-03
8491684 Filter cartridge; components thereof; and methods Thomas D. Raether, Brian Zauner, Gabriel Safarian 2013-07-23
8361182 Filter cartridge with centerboard, dust collectors, and methods Matthew A. Kalis 2013-01-29
4860644 Articulatable fume exhauster trunk James W. Kohl 1989-08-29
4792344 Air filtering method and apparatus James L. Berkhoel, Bruce A. Hampel 1988-12-20