The following seem like really good patents, but they only provide an abstract of the process. Do any bees know where someone can view the complete patents online for free?

http://l2.espacenet.com/espacenet/viewer?PN=CN1132740&CY=gb&LG=en&DB=EPD

http://l2.espacenet.com/espacenet/viewer?PN=IN185200&CY=gb&LG=en&DB=EPD

http://l2.espacenet.com/espacenet/viewer?PN=CN1364756&CY=gb&LG=en&DB=EPD

This info may help with searching for Free Chinese patents.

http://www.mayallj.freeserve.co.uk/china.htm

I'll keep looking meanwhile.

Thanks... they where listed on there, but only the abstract was given also. I guess I may have to order these via snail mail. After I perfect a real good high yielding ephedrine extraction from Ma Huang I'll be posting the procedure with all details and pics.

Be prepared to translate chinese.

That shouldn't be a problem around here.