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STEFFERS FRANS

Overview
  • Total Patents
    30
About

STEFFERS FRANS has a total of 30 patent applications. Its first patent ever was published in 1976. It filed its patents most often in German Democratic Republic. Its main competitors in its focus markets macromolecular chemistry and polymers are G PREDPR NII SINT KAUCHUKA IM, KAYAKU AKZO KK and C J CORP.

Patent filings in countries

World map showing STEFFERS FRANSs patent filings in countries
# Country Total Patents
#1 German Democratic Republic 30

Patent filings per year

Chart showing STEFFERS FRANSs patent filings per year from 1900 to 2020

Focus industries

Top inventors

# Name Total Patents
#1 Steffers Frans 30
#2 Haeussler Gerhard 18
#3 Rothenhaeusser Bernd 16
#4 Mueller Volker 7
#5 Schoene Rosemarie 7
#6 Niklas Norbert 6
#7 Voelzke Wolfgang 6
#8 Schlief Harry 6
#9 Herchet Sybille 4
#10 Muenzberg Hans 3

Latest patents

Publication Filing date Title
DD204940A1 Liquid washing and cleaning agent
DD200355A1 Process for preparing paint mixing polymerises
DD158250A1 Process for preparing a binder for self-cleaning painting
DD151456A1 Method for producing carboxylated elastomerlatices for coating applications
DD151463A1 Method for producing stable lates
DD149808A1 Method for producing heat-active butadiencopolymerisate-latices
DD149226A1 Process for preparing butadien copolymerisatlatices with low emulgator content
DD148355A1 Method for impregnating needle felt
DD148226A1 Method for the production of carboxyllatices with high pigment compatibility
DD146634A1 Method for producing an impregnation latex for needle felt
DD146604A1 Method for producing polymer emulsions
DD146612A1 Process for the production of carboxyllatices with improved useful properties
DD154779A3 Process for preparing latex mixtures
DD144925A1 Method for producing carboxylated elastomerlatices
DD144415A1 Process for agglomerating butadien copolymerisatlatices
DD143621A1 Process for stabilizing carboxyllatices
DD142552A1 Process for preparing diolefin copolymer elastomerlatices
DD142349A1 Heat-resistant latex mixture based on butadien-styrol-carboxyllatices
DD142346A1 Method for producing carboxylated polystyrene liquids
DD140461A1 Method for producing hitch active butadieny styrene copolymerisatlatices