Drug – bio-affecting and body treating compositions – Plant material or plant extract of undetermined constitution... – Containing or obtained from a seed or nut
Reexamination Certificate
2008-01-15
2008-01-15
Tate, Christopher R. (Department: 1655)
Drug, bio-affecting and body treating compositions
Plant material or plant extract of undetermined constitution...
Containing or obtained from a seed or nut
C424S725000
Reexamination Certificate
active
10533073
ABSTRACT:
This invention relates to a method for the isolation of silymarin fromsilybum marianumseeds without precooling wherein the ground seeds are defatted using a hydrocarbon solvent, followed by extraction with a nontoxic medium polarity solvent, purification of the dried extract and drying of the crystals thus obtained.
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patent: 6262019 (2001-07-01), Keller et al.
patent: 6309678 (2001-10-01), Tandon
patent: 7172774 (2007-02-01), Leko
patent: 2017789 (1971-10-01), None
patent: 112261 (1975-04-01), None
St. Onge Steward Johnston & Reens LLC
Tate Christopher R.
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