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PFEIFER & LANGEN

Overview
  • Total Patents
    188
About

PFEIFER & LANGEN has a total of 188 patent applications. Its first patent ever was published in 1936. It filed its patents most often in Germany, Denmark and EPO (European Patent Office). Its main competitors in its focus markets foods and drinks, biotechnology and macromolecular chemistry and polymers are SLAVYANSKIJ ANATOLIJ ANATOLEVICH, RAFFINERIE TIRLEMONTOISE SA and STEFFEN CARL.

Patent filings per year

Chart showing PFEIFER & LANGENs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Schwengers Dieter 22
#2 Ludovici Karl 12
#3 Bongers Ulrich 10
#4 Keller Ingrid 9
#5 Benecke Herta 7
#6 Schwengers Dieter Dipl Chem Dr 6
#7 Schwingeler Renate 6
#8 Wegner Gerd 6
#9 Hoffmann Rolf-Dieter 6
#10 Schwengers Dieter Dr 6

Latest patents

Publication Filing date Title
DE102007039838A1 Milling process and ground product
EP1279745A1 Process for batchwise preparation of big sugar crystals
DE10135079A1 Process for the batchwise production of sugar crystals without threads and device for carrying them out
DE19812511C1 Process for the preparation and use of B starch
DE19614430C1 Production of calcium oxide from precipitated calcium carbonate
DE4427668A1 Process for the preparation of novel corn gluten fractions and product obtainable by this process
DE4424866C1 Prepn. of stable, non-caking sugar-based gelling aid for making jelly
DE4414602A1 Process for controlling the degree of utilization of a discontinuous centrifuge, in particular a sugar centrifuge
DE4412065A1 Process for the preparation of hydroxyamines
EP0452331A1 Process and device for preventing crust formation in continuously operating sugar-crystallization equipment
DE3715919A1 Sweetener, process for the production and use thereof
DE3604484C1 Process for the alcoholic fermentation by yeast
IE851480L Water soluble iron dextran
CN1008369B Process for irondextran of water-soluble
DE3446380C1 Sweeteners, process for making and using the same
DE3422248C1 Process for the preparation of clinical dextran
DE3422249A1 WATER-SOLUBLE IRON DEXTRANE AND METHOD FOR THE PRODUCTION THEREOF
DE3422247A1 GLUCO-OLIGOSACCHARIDE MIXTURE AND METHOD FOR THE PRODUCTION THEREOF
DE3422246C1 Process for the production of monovalent haptens
DE3420001A1 METHOD FOR REGULATING THE VACUUM COOKING PROCESS FOR PRODUCING CRYSTALLINE SUGAR