Inventor
BARK JONG-SEOK
US3 patents
Patents
3 patentsUS7182957B2Feb 27, 2007
Polymer blends that swell in an acidic environment and deswell in a basic environment
MACROMED INC22 citations91
US6537584B1Mar 25, 2003
Polymer blends that swell in an acidic environment and deswell in a basic environment
MACROMED INC45 citations91
US6730327B2May 4, 2004
Polymer blends that swell in an acidic environment and deswell in a basic environment
MACROMED INC7 citations72