Solid material comminution or disintegration – Processes – With application of fluid or lubricant material
Reexamination Certificate
2007-09-04
2007-09-04
Rosenbaum, Mark (Department: 3725)
Solid material comminution or disintegration
Processes
With application of fluid or lubricant material
C241S028000
Reexamination Certificate
active
10965691
ABSTRACT:
The invention provides methods for separating outer birch bark from inner birch bark. The invention also provides methods for isolating betulin; lupeol; betulinic acid; 9,10-epoxy-18-hydroxyoctadecanoic acid; 9,10,18-trihydroxyoctadecanoic acid; polyphenolic polymers and fatty acids from birch bark.
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Carlson Robert M.
Edwardson Chris F.
Kolomitsyn Igor V.
Krasutsky Pavel A.
Nesterenko Vitaliy V.
Regents of the University of Minnesota
Rosenbaum Mark
Schwegman Lundberg Woessner & Kluth P.A.
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