Processes and apparatus for extraction of active substances...

Details Processes and apparatus for extraction of active substances... Processes and apparatus for extraction of active substances...

2002-05-07

2009-11-24

Hoffman, Susan C (Department: 1655)

Drug, bio-affecting and body treating compositions

Plant material or plant extract of undetermined constitution...

C426S494000

Reexamination Certificate

active

07622140

ABSTRACT:
Processes for preparing extracts of natural products such as plant material, and for preparing purified extracts from crude extracts of natural products, by extraction with hot gas. Apparatus suitable for use in preparing extracts of natural products are also described.

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