Inventor
LIU FRANK ZHENHUAN
US7 patents
⚠️ This page may combine multiple inventors who share the name “LIU FRANK ZHENHUAN”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
ALIGN TECHNOLOGY INC
5 patentsUS7831322B2Nov 9, 2010
Producing wrinkled dental aligner for dental treatment
ALIGN TECHNOLOGY INC99 citations97
US7435084B2Oct 14, 2008
System and methods for casting physical tooth model
ALIGN TECHNOLOGY INC65 citations97
US9939999B2Apr 10, 2018
Treatment of teeth by aligners
ALIGN TECHNOLOGY INC10 citations83
US11379097B2Jul 5, 2022
Treatment of teeth by aligners
ALIGN TECHNOLOGY INC0 citations62
US11086490B2Aug 10, 2021
Treatment of teeth by aligners
ALIGN TECHNOLOGY INC0 citations62