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Rock breaking product
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Patent number 9,062,953
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Issue date Jun 23, 2015
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Sandvik Mining and Construction RSA (PTY) Ltd.
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Jarmo Uolevi Leppanen
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F42 - AMMUNITION BLASTING
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Surface blasting product
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Patent number 9,010,246
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Issue date Apr 21, 2015
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Sandvik Mining and Construction RSA (PTY) Ltd.
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Jarmo Uolevi Leppanen
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F42 - AMMUNITION BLASTING
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Cartridge for breaking rock
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Patent number 8,763,723
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Issue date Jul 1, 2014
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Sandvik Mining and Construction RSA (Pty) Ltd.
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Jarmo Uolevi Leppanen
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F42 - AMMUNITION BLASTING
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Warning system
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Patent number 8,760,289
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Issue date Jun 24, 2014
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Sandvik Mining and Construction RSA (Pty) Ltd.
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Jarmo Uolevi Leppanen
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E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
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Rock anchor cable
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Patent number 8,251,617
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Issue date Aug 28, 2012
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Sandvik Mining and Construction RSA (PTY) Ltd.
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Jarmo Uolevi Leppanen
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E21 - EARTH DRILLING MINING
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Electronic blasting capsule
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Patent number 8,015,921
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Issue date Sep 13, 2011
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Sandvik Mining and Construction RSA (PTY) Ltd.
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Jarmo Leppanen
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F42 - AMMUNITION BLASTING