PETROZYME TECHNOLOGIES INC.

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
6652752 Biodegradation of oil sludgeExpiredJan 21, 03Nov 25, 03[C02F]
6251058 Treatment of soil contaminated with hazardous residuesExpiredJan 28, 99Jun 26, 01[B08B, B09C, A62D]
6171500 Biological process for breaking oil-water emulsionsExpiredApr 20, 99Jan 09, 01[C02F]
6153017 Treatment of soil contaminated with oil or oil residuesExpiredJan 28, 99Nov 28, 00[B08B, C10G]

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