Inventor
LAMSHING WISTON
US8 patents
⚠️ This page may combine multiple inventors who share the name “LAMSHING WISTON”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HFM INT INC
6 patentsUS6013835AJan 11, 2000
Method and apparatus for preparing purified terephthalic acid
HFM INT INC123 citations98
US5840968ANov 24, 1998
Method and apparatus for preparing purified terephthalic acid
HFM INT INC114 citations97
US6054610AApr 25, 2000
Method and apparatus for preparing purified terephthalic acid and isophthalic acid from mixed xylenes
HFM INT INC60 citations95
US5929274AJul 27, 1999
Method to reduce carboxybenzaldehyde isomers in terephthalic acid or isophthalic acid
HFM INT INC73 citations95
US6113866ASep 5, 2000
Apparatus for preparing purified terephthalic acid
HFM INT INC16 citations92
US6140534AOct 31, 2000
Method for purifying isophthalic acid prepared from metaxylene
HFM INT INC5 citations61