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Enhanced biochar
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Patent number 11,111,185
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Issue date Sep 7, 2021
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Carbon Technology Holdings, LLC
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Ranko Bontchev
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C05 - FERTILISERS MANUFACTURE THEREOF
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Enhanced biochar
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Patent number 10,301,228
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Issue date May 28, 2019
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Cool Planet Energy Systems, Inc.
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Ranko Panayatov Bontchev
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C05 - FERTILISERS MANUFACTURE THEREOF
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Enhanced Biochar
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Patent number 9,809,502
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Issue date Nov 7, 2017
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Cool Planet Energy Systems, Inc.
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Ranko Bontchev
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C05 - FERTILISERS MANUFACTURE THEREOF