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US Patent 11102980 Method of preparing copper-containing wood preserving compositions

Patent 11102980 was granted and assigned to Koppers on August, 2021 by the United States Patent and Trademark Office.

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Patent Applicant
Koppers
Koppers
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Current Assignee
Koppers
Koppers
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Patent Jurisdiction
United States Patent and Trademark Office
United States Patent and Trademark Office
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Patent Number
111029800
Patent Inventor Names
Peter Tham0
Jun Zhang0
Date of Patent
August 31, 2021
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Patent Application Number
201808280
Date Filed
August 28, 2018
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Patent abstract

The present invention relates to a method for producing copper ammonia solutions by reacting a cuprous oxide with ammonia, carbon dioxide and an oxidant. The resulting copper-containing solution can then be used to formulate a variety of wood preserving products.

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