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MEISTER JOHN J

Overview
  • Total Patents
    14
About

MEISTER JOHN J has a total of 14 patent applications. Its first patent ever was published in 1988. It filed its patents most often in United States, China and EPO (European Patent Office). Its main competitors in its focus markets macromolecular chemistry and polymers, basic materials chemistry and chemical engineering are SUN ANSHUN, SICHUAN GUANGYA POLYMER CHEMICAL CO LTD and SHENGLI OILFIELD SHENGLI CHEMICAL CO LTD.

Patent filings in countries

World map showing MEISTER JOHN Js patent filings in countries

Patent filings per year

Chart showing MEISTER JOHN Js patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Meister John J 14
#2 Chen Meng-Jiu 2
#3 Chang Fu-Fong 2
#4 Lathia Amit 2

Latest patents

Publication Filing date Title
US5331088A Process for making graft copolymers from lignite and vinyl monomers
US5194552A Soluble, solid or crosslinked graft copolymers of lignin (2-propenamide)-(2-methyl-3-oxo-4-oxybut-1-ene-(p-ethoxy-(3*p+3)-ol), methods of making the same and uses therefore
CN1071436A Xylogen-acrylamide-phenylethene grafted copolymer, method for making and application
WO9207035A1 Graft copolymers of lignin (2-propenamide)-(1-phenylethene) method of making same and uses therefore
US5037931A Soluble or crosslinked graft copolymers of lignin acrylamide and hydroxylmethacrylate
US5116904A Soluble, solid, or crosslinked graft copolymers of lignin (2-propenamide)-(2-methyl-3-oxo-4-oxybut-1-ene- (p-ethoxy-(3*p+3)-0l), methods of making the same and uses therefore
US4990270A Water soluble graft copolymers of lignin methods of making the same and uses therefore
US5138007A Process for making graft copolymers from lignin and vinyl monomers
US5121801A Soluble for crosslinked graft copolymers of lignin based on hydroxyethylmethacrylate and acrylamide
US4889902A Soluble or crosslinked graft copolymers of lignin acrylamide and 2-hydroxyethylmethacrylate
US4931527A Water soluble graft copolymers of lignin, methods of making the same and uses therefore
US4940764A Water soluble graft copolymers of lignin and methods of making the same