Inventor

LI YINGQIN

US2 patents

⚠️ This page may combine multiple inventors who share the name “LI YINGQIN”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

ACCESS BUSINESS GROUP INT LLC

1 patent

US6991811B1Jan 31, 2006

Echinacea induction of phase II enzymes

ACCESS BUSINESS GROUP INT LLC60 citations89

AMWAY CORP

1 patent

US6217878B1Apr 17, 2001

Method of preparing echinacea powder

AMWAY CORP9 citations67