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Michael D. Harfst

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  • Milwaukie, OR, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Targeted oil delivery for chain saw bars
    • Patent number 11,926,070
    • Issue date Mar 12, 2024
    • OREGON TOOL, INC.
    • Eric M. Burmester
    • B27 - WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL NAILING OR STAPLING MACH...
  • Information Patent Grant

    Saw chain link with one or more oversized rivet holes
    • Patent number 11,273,573
    • Issue date Mar 15, 2022
    • OREGON TOOL, INC.
    • Michael D. Harfst
    • B27 - WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL NAILING OR STAPLING MACH...
  • Information Patent Grant

    Saw chain presets
    • Patent number 11,247,363
    • Issue date Feb 15, 2022
    • OREGON TOOL, INC.
    • Christopher D. Seigneur
    • B27 - WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL NAILING OR STAPLING MACH...
  • Information Patent Grant

    High efficiency saw chain
    • Patent number 11,090,741
    • Issue date Aug 17, 2021
    • OREGON TOOL, INC.
    • Roberto de Jesus Torres Delgado
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Tie rivet for saw chain
    • Patent number 10,406,715
    • Issue date Sep 10, 2019
    • Blount, Inc.
    • Michael D. Harfst
    • B27 - WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL NAILING OR STAPLING MACH...
  • Information Patent Grant

    Bumper drive link
    • Patent number D843802
    • Issue date Mar 26, 2019
    • Blount, Inc.
    • Roberto de Jesus Torres Delgado
    • D08 - Tools and hardware
  • Information Patent Grant

    Cutter for saw chain
    • Patent number D842910
    • Issue date Mar 12, 2019
    • Blount, Inc.
    • Sam Hutsell
    • D15 - Machines not elsewhere specified
  • Information Patent Grant

    Tie strap with hardened integrated rivet for a saw chain
    • Patent number 10,195,759
    • Issue date Feb 5, 2019
    • Blount, Inc.
    • Christopher D. Seigneur
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Tie strap
    • Patent number D839720
    • Issue date Feb 5, 2019
    • Blount, Inc.
    • James Matthew Cunnington
    • D08 - Tools and hardware
  • Information Patent Grant

    Formed wire tie strap with integrated rivet for a saw chain
    • Patent number 9,757,808
    • Issue date Sep 12, 2017
    • Blount, Inc.
    • Michael D. Harfst
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Apparatus, method, and system for orienting a saw chain link on a s...
    • Patent number 9,038,519
    • Issue date May 26, 2015
    • Blount, Inc.
    • Mike Goettel
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Saw chain link with offset footprint
    • Patent number 8,136,436
    • Issue date Mar 20, 2012
    • Blount, Inc.
    • Ian Osborne
    • B27 - WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL NAILING OR STAPLING MACH...
  • Information Patent Grant

    Low vibration saw chain
    • Patent number 7,293,491
    • Issue date Nov 13, 2007
    • Blount, Inc.
    • Mike Harfst
    • B27 - WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL NAILING OR STAPLING MACH...
  • Information Patent Grant

    Saw chain having drive link with guard feature
    • Patent number 6,748,840
    • Issue date Jun 15, 2004
    • Blount, Inc.
    • Michael D. Harfst
    • B27 - WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL NAILING OR STAPLING MACH...
  • Information Patent Grant

    Depth gauge for cutter
    • Patent number 6,446,534
    • Issue date Sep 10, 2002
    • Blount, Inc.
    • Michael D. Harfst
    • B27 - WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL NAILING OR STAPLING MACH...
  • Information Patent Grant

    Depth gauge for cutter
    • Patent number 6,058,825
    • Issue date May 9, 2000
    • Blout, Inc.
    • Michael D. Harfst
    • B27 - WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL NAILING OR STAPLING MACH...
  • Information Patent Grant

    Chain saw bar fluid passage system
    • Patent number 5,050,303
    • Issue date Sep 24, 1991
    • Blount, Inc.
    • James B. Sinclair
    • B27 - WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL NAILING OR STAPLING MACH...
  • Information Patent Grant

    Saw chain with wear link
    • Patent number 4,873,903
    • Issue date Oct 17, 1989
    • Blount, Inc.
    • Michael D. Harfst
    • B27 - WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL NAILING OR STAPLING MACH...
  • Information Patent Grant

    Chain link with folded over connecting portions
    • Patent number 4,813,323
    • Issue date Mar 21, 1989
    • Blount, Inc.
    • Michael D. Harfst
    • B27 - WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL NAILING OR STAPLING MACH...

Patents Applicationslast 30 patents

  • Information Patent Application

    SAW CHAIN LINK WITH ONE OR MORE OVERSIZED RIVET HOLES
    • Publication number 20220219350
    • Publication date Jul 14, 2022
    • Oregon Tool, Inc.
    • Michael D. HARFST
    • B27 - WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL NAILING OR STAPLING MACH...
  • Information Patent Application

    TARGETED OIL DELIVERY FOR CHAIN SAW BARS
    • Publication number 20220143860
    • Publication date May 12, 2022
    • Oregon Tool, Inc.
    • Eric M. Burmester
    • B27 - WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL NAILING OR STAPLING MACH...
  • Information Patent Application

    HIGH EFFICIENCY SAW CHAIN
    • Publication number 20200180053
    • Publication date Jun 11, 2020
    • Blount, Inc.
    • Roberto de Jesus Torres Delgado
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Application

    SAW CHAIN PRESETS
    • Publication number 20190224880
    • Publication date Jul 25, 2019
    • Blount, Inc.
    • Christopher D. Seigneur
    • B27 - WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL NAILING OR STAPLING MACH...
  • Information Patent Application

    HIGH EFFICIENCY SAW CHAIN
    • Publication number 20180326610
    • Publication date Nov 15, 2018
    • Blount, Inc.
    • Roberto de Jesus Torres Delgado
    • B27 - WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL NAILING OR STAPLING MACH...
  • Information Patent Application

    SAW CHAIN LINK WITH ONE OR MORE OVERSIZED RIVET HOLES
    • Publication number 20170197327
    • Publication date Jul 13, 2017
    • Michael D. Harfst
    • B27 - WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL NAILING OR STAPLING MACH...
  • Information Patent Application

    TIE RIVET FOR SAW CHAIN
    • Publication number 20160221209
    • Publication date Aug 4, 2016
    • Blount, Inc.
    • Michael D. Harfst
    • B27 - WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL NAILING OR STAPLING MACH...
  • Information Patent Application

    TIE STRAP WITH HARDENED INTEGRATED RIVET FOR A SAW CHAIN
    • Publication number 20160193749
    • Publication date Jul 7, 2016
    • Blount, Inc.
    • Christopher D. Seigneur
    • C21 - METALLURGY OF IRON
  • Information Patent Application

    APPARATUS, METHOD, AND SYSTEM FOR ORIENTING A SAW CHAIN LINK ON A S...
    • Publication number 20140259700
    • Publication date Sep 18, 2014
    • Blount, Inc.
    • Mike Goettel
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Application

    FORMED WIRE TIE STRAP WITH INTEGRATED RIVET FOR A SAW CHAIN
    • Publication number 20140260875
    • Publication date Sep 18, 2014
    • Blount, Inc.
    • Michael D. Harfst
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Application

    CHAIN LINK SHARPENING METHOD AND APPARATUS
    • Publication number 20100005666
    • Publication date Jan 14, 2010
    • Blount, Inc.
    • Chris Seigneur
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Application

    SAW CHAIN CUTTING LINK WITH TAPER
    • Publication number 20080110316
    • Publication date May 15, 2008
    • BLOUNT, INC., A DELAWARE CORPORATION
    • Mike Harfst
    • B27 - WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL NAILING OR STAPLING MACH...
  • Information Patent Application

    SAW CHAIN LINK WITH OFFSET FOOTPRINT
    • Publication number 20080110317
    • Publication date May 15, 2008
    • BLOUNT, INC., A DELAWARE CORPORATION
    • Ian Osborne
    • B27 - WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL NAILING OR STAPLING MACH...
  • Information Patent Application

    SAW CHAIN HAVING MULTIPLE DRIVE LINK CONFIGURATIONS
    • Publication number 20080011144
    • Publication date Jan 17, 2008
    • Blount, Inc., a limited liability company of Delaware
    • Michael D. Harfst
    • B27 - WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL NAILING OR STAPLING MACH...
  • Information Patent Application

    Low vibration saw chain
    • Publication number 20070089586
    • Publication date Apr 26, 2007
    • Mike Harfst
    • B27 - WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL NAILING OR STAPLING MACH...
  • Information Patent Application

    Saw chain having drive link with guard feature
    • Publication number 20040025355
    • Publication date Feb 12, 2004
    • Michael D. Harfst
    • B27 - WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL NAILING OR STAPLING MACH...