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Multipurpose drill system
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Patent number 11,959,381
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Issue date Apr 16, 2024
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Intelligent Drilling Applications & Technology Pty Ltd.
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Jeff William Branson
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E21 - EARTH DRILLING MINING
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Down-the-hole hammer
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Patent number 9,103,165
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Issue date Aug 11, 2015
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Mincon International
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Joseph Purcell
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E21 - EARTH DRILLING MINING
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Vibration hammer
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Patent number 8,210,274
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Issue date Jul 3, 2012
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Suk Shin In
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E21 - EARTH DRILLING MINING
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Ultrasonic rotary-hammer drill
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Patent number 7,740,088
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Issue date Jun 22, 2010
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The United States of America as represented by the administrator of the Natio...
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Yoseph Bar-Cohen
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E21 - EARTH DRILLING MINING
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Rock drill
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Patent number 6,119,793
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Issue date Sep 19, 2000
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SIG Rocktools AG
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Max Siegenthaler
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B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
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Pneumatic impact imparting tool
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Patent number 4,867,250
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Issue date Sep 19, 1989
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Ritt Corporation
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Akira Ono
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B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
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Hydraulic percussive machines
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Patent number 4,126,192
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Issue date Nov 21, 1978
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The Steel Engineering Company Limited
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Trevor E. Wallace
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B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
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Rotary and percussive devices
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Patent number 4,103,746
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Issue date Aug 1, 1978
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A. F. Hydraulics Limited
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Lionel Arthur Reynolds
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B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
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3811515
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Patent number 3,811,515
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Issue date May 21, 1974
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E21 - EARTH DRILLING MINING
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3785248
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Patent number 3,785,248
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Issue date Jan 15, 1974
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E21 - EARTH DRILLING MINING
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3666024
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Patent number 3,666,024
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Issue date May 30, 1972
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E21 - EARTH DRILLING MINING
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3587753
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Patent number 3,587,753
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Issue date Jun 28, 1971
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E21 - EARTH DRILLING MINING
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3409089
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Patent number 3,409,089
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Issue date Nov 5, 1968
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E21 - EARTH DRILLING MINING
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3336986
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Patent number 3,336,986
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Issue date Aug 22, 1967
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E21 - EARTH DRILLING MINING
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3307638
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Patent number 3,307,638
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Issue date Mar 7, 1967
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E21 - EARTH DRILLING MINING
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3183668
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Patent number 3,183,668
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Issue date May 18, 1965
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B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
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3143931
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Patent number 3,143,931
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Issue date Aug 11, 1964
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E21 - EARTH DRILLING MINING
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3059618
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Patent number 3,059,618
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Issue date Oct 23, 1962
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E21 - EARTH DRILLING MINING
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3056390
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Patent number 3,056,390
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Issue date Oct 2, 1962
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B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
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2910046
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Patent number 2,910,046
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Issue date Oct 27, 1959
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E21 - EARTH DRILLING MINING
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2669840
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Patent number 2,669,840
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Issue date Feb 23, 1954
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B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
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2618241
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Patent number 2,618,241
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Issue date Nov 18, 1952
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E21 - EARTH DRILLING MINING