EMR Microwave Technology Corporation

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2002/0189,497 Method of reducing carbon levels in fly ashAbandonedJun 01, 01Dec 19, 02[C04B]
6074533 Method and apparatus for optimization of energy coupling for microwave treatment of metal ores and concentrates in a microwave fluidized bed reactorExpiredApr 14, 99Jun 13, 00[C07C]
5972302 Method for the microwave induced oxidation of pyritic ores without the production of sulphur dioxideExpiredJan 16, 98Oct 26, 99[C01B, C01G]
5824133 Microwave treatment of metal bearing ores and concentratesExpiredMar 12, 96Oct 20, 98[C22B]
4324582 Process for the recovery of copper from its oresExpiredJun 11, 80Apr 13, 82[C22B]
4311520 Process for the recovery of nickel, cobalt and manganese from their oxides and silicatesExpiredFeb 28, 80Jan 19, 82[C22B]

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