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SCHAEFER JOHANN KALKWERKE

Overview
  • Total Patents
    13
About

SCHAEFER JOHANN KALKWERKE has a total of 13 patent applications. Its first patent ever was published in 1962. It filed its patents most often in Germany, Austria and Czechoslovakia. Its main competitors in its focus markets materials and metallurgy, basic materials chemistry and chemical engineering are JIANGSU PROVINCE CERAMICS RES INSTITUTE CO LTD, TASHK NI I PUROEKUTONUI I SUTO and SHENZHEN SUNTECH ADVANCED CERAM CO LTD.

Patent filings in countries

World map showing SCHAEFER JOHANN KALKWERKEs patent filings in countries

Patent filings per year

Chart showing SCHAEFER JOHANN KALKWERKEs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Zander Hans Von Dipl Ing 5
#2 Von Zander Hans 3
#3 Friedrich Dr Erich 2
#4 Schoppe Fritz Dipl Ing Dr 1
#5 Hansu Fuon Tsuanderu 1

Latest patents

Publication Filing date Title
DE3131959A1 Process for producing a homogeneous mixture of finely divided hydrated lime and wet coal
DE3020527A1 Subdividing installation for powder bulk materials - comprises turnable wheel inside vessel with open chambers fitted to rim to empty contents into outlet sockets
DE2834862A1 METHOD AND CHAMBER FOR BURNING LIME O.AE. PARTS
DE2714858A1 High speed mixing of lime with water - to obtain aq. suspension of calcium hydroxide
DE2303691A1 Sand-lime starting material for bricks and stones - using soft quicklime which is ground and mixed with sand, hydration taking place during mixing
DE1167467B Process for the production of a white pigment
DE1154214B Process for the production of a white pigment