Skip to main content

Advertisement

Table 1 Five base-solvent combinations disclosed in the '035 patent

From: Scope of claim coverage in patents of fufang Chinese herbal drugs: Substitution of ingredients

Combination Base Solvent
1 potassium hydroxide acetone
2 potassium carbonate acetone
3 potassium carbonate acetone and water
4 potassium carbonate lower alkyl acetate
5 potassium carbonate lower alkyl acetate and water