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Cryogenic core collection
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Patent number 10,309,177
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Issue date Jun 4, 2019
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Colorado State University Research Foundation
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Thomas C. Sale
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E21 - EARTH DRILLING MINING
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Wireline drilling system
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Patent number 9,850,728
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Issue date Dec 26, 2017
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INNOVA DRILLING AND INTERVENTION LIMITED
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Roland Wessel
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E21 - EARTH DRILLING MINING
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-
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Earth drilling device
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Patent number 7,775,300
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Issue date Aug 17, 2010
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Bauer Maschinen GmbH
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Karl Johannes Krollmann
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E21 - EARTH DRILLING MINING
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Boring system and method therefor
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Patent number 7,748,477
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Issue date Jul 6, 2010
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Kolon Construction Co., Ltd.
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Eun-Jung Youn
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E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
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-
-
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Extended soil sampling head
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Patent number 5,950,741
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Issue date Sep 14, 1999
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Geophyta, Inc.
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Nathan A. Wright
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E21 - EARTH DRILLING MINING
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-
-
-
-
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Soil sampler
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Patent number 4,482,021
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Issue date Nov 13, 1984
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Roman Repski
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E21 - EARTH DRILLING MINING
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-
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Flexpower deep well drill
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Patent number 3,934,660
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Issue date Jan 27, 1976
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Daniel E. Nelson
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B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
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3420320
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Patent number 3,420,320
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Issue date Jan 7, 1969
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E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
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3382935
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Patent number 3,382,935
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Issue date May 14, 1968
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E21 - EARTH DRILLING MINING
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3232361
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Patent number 3,232,361
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Issue date Feb 1, 1966
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E21 - EARTH DRILLING MINING
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3053331
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Patent number 3,053,331
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Issue date Sep 11, 1962
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E21 - EARTH DRILLING MINING
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2915288
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Patent number 2,915,288
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Issue date Dec 1, 1959
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E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
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2784944
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Patent number 2,784,944
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Issue date Mar 12, 1957
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E21 - EARTH DRILLING MINING
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2735703
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Patent number 2,735,703
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Issue date Feb 21, 1956
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E21 - EARTH DRILLING MINING
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2730329
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Patent number 2,730,329
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Issue date Jan 10, 1956
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E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
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2529246
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Patent number 2,529,246
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Issue date Nov 7, 1950
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E21 - EARTH DRILLING MINING
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2352326
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Patent number 2,352,326
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Issue date Jun 27, 1944
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E21 - EARTH DRILLING MINING