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Karin Mannhardt
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Calgary, CA
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last 30 patents
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Patent Grant
Method for improving enhanced recovery of oil using surfactant-stab...
Patent number
5,301,539
Issue date
Apr 12, 1994
Alberta Oil Sands Technology and Research Authority
Laurier L. Schramm
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Grant
Method for improving enhanced recovery of oil using surfactant-stab...
Patent number
5,060,727
Issue date
Oct 29, 1991
Alberta Oil Sands Technology and Research Authority
Laurier L. Schramm
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...