MH

Michael D. Harfst

BL Blount: 12 patents #2 of 164Top 2%
OT Oregon Tool: 5 patents #1 of 18Top 6%
Overall (All Time): #247,300 of 4,157,543Top 6%
18
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
12365109 Saw chain link with one or more oversized rivet holes Christopher D. Seigneur 2025-07-22
11926070 Targeted oil delivery for chain saw bars Eric M. Burmester, Sam Hutsell, Genesis McDermott, Patrick Sellars, James Matthew Cunnington +1 more 2024-03-12
11273573 Saw chain link with one or more oversized rivet holes Christopher D. Seigneur 2022-03-15
11247363 Saw chain presets Christopher D. Seigneur, Evan Pickett, James Matthew Cunnington 2022-02-15
11090741 High efficiency saw chain Roberto de Jesus Torres Delgado, James Matthew Cunnington, Sam Hutsell 2021-08-17
10406715 Tie rivet for saw chain Christopher D. Seigneur 2019-09-10
D843802 Bumper drive link Roberto de Jesus Torres Delgado, James Matthew Cunnington, Sam Hutsell 2019-03-26
D842910 Cutter for saw chain Sam Hutsell, James Matthew Cunnington, Roberto de Jesus Torres Delgado 2019-03-12
D839720 Tie strap James Matthew Cunnington, Sam Hutsell, Roberto de Jesus Torres Delgado 2019-02-05
10195759 Tie strap with hardened integrated rivet for a saw chain Christopher D. Seigneur 2019-02-05
9757808 Formed wire tie strap with integrated rivet for a saw chain Christopher D. Seigneur 2017-09-12
9038519 Apparatus, method, and system for orienting a saw chain link on a sprocket Mike Goettel, Christopher D. Seigneur 2015-05-26
6748840 Saw chain having drive link with guard feature 2004-06-15
6446534 Depth gauge for cutter 2002-09-10
6058825 Depth gauge for cutter 2000-05-09
5050303 Chain saw bar fluid passage system James Sinclair, Paul W. Pink, Robin A. Plumbley 1991-09-24
4873903 Saw chain with wear link 1989-10-17
4813323 Chain link with folded over connecting portions 1989-03-21