Learn more

HFM INT INC

Overview
  • Total Patents
    78
About

HFM INT INC has a total of 78 patent applications. Its first patent ever was published in 1996. It filed its patents most often in United States, Australia and Taiwan. Its main competitors in its focus markets organic fine chemistry, basic materials chemistry and chemical engineering are GTC TECHNOLOGY INC, PAUL SABATIER and GTC TECHNOLOGY LP.

Patent filings per year

Chart showing HFM INT INCs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Lee Fu-Ming 58
#2 Lamshing Wiston 31
#3 Wytcherley Randi Wright 19
#4 Gentry Joseph C 16
#5 Gualy Ronald G 7
#6 Norwood Stephen G 5
#7 Fu-Ming Lee 5
#8 Shang Wei-Teh Wade 4
#9 Lee F-M 2
#10 Lamshing W 2

Latest patents

Publication Filing date Title
IL139973A Process for preparing purified terephthalic acid and isophthalic acid from mixed xylenes
TW487700B Method for purifying crude terephthalic acid from a liquid dispersion produced from the oxidation of mixed xylenes
BR9910817A Process for purifying crude terephthalic acid
ZA9900808B Recovery of acrylic acid from process or waste water streams.
US6180827B1 Recovery of acrylic acid from process or waste water streams
US6140534A Method for purifying isophthalic acid prepared from metaxylene
ZA9808074B Aromatics separation process and method of retrofitting existing equipment for same
US5929274A Method to reduce carboxybenzaldehyde isomers in terephthalic acid or isophthalic acid
US6054610A Method and apparatus for preparing purified terephthalic acid and isophthalic acid from mixed xylenes
US6005157A Cycloparaffin purification from petroleum streams
US5840968A Method and apparatus for preparing purified terephthalic acid
US6013835A Method and apparatus for preparing purified terephthalic acid
US5877385A Process including extractive distillation and/or dehydrogenation to produce styrene from petroleum feedstock including ethyl-benzene/xylene mixtures