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GRUENAU LANDSHOFF CHEM FAB

Overview
  • Total Patents
    120
About

GRUENAU LANDSHOFF CHEM FAB has a total of 120 patent applications. Its first patent ever was published in 1906. It filed its patents most often in Germany, Austria and Switzerland. Its main competitors in its focus markets materials and metallurgy, organic fine chemistry and textiles and paper are CHEM FAB GRUNAU LANDSHOFF & ME, CHANGZHOU FUXI TECH CO LTD and GYPSUM LIME AND ALABASTINE.

Patent filings in countries

World map showing GRUENAU LANDSHOFF CHEM FABs patent filings in countries
# Country Total Patents
#1 Germany 53
#2 Austria 19
#3 Switzerland 18
#4 United Kingdom 18
#5 France 5
#6 United States 4
#7 Denmark 2
#8 Belgium 1

Patent filings per year

Chart showing GRUENAU LANDSHOFF CHEM FABs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Aktiengesellschaft Chemische F 17
#2 Kirchner Dipl-Ing Walter 13
#3 Duering Dr Erich 3
#4 Sommer Dr Fritz 3
#5 Nassau Dr Max 2
#6 Franke Dr Emil 2
#7 Braeuer Adolf 2
#8 Formhals Dr-Ing Richard 1
#9 Meyer Chemische Fabrik Gruenau 1
#10 Roessler Deutsche Gold-Silber- 1

Latest patents

Publication Filing date Title
GB504284A Improvements in and relating to the stuffing of leather
GB500631A Improvements in or relating to dry cosmetic preparations
GB469162A Process of producing easily crushed anhydrous borax
GB482656A Improved process of reducing the felting properties of wool or other fibrous substances of animal origin
GB475666A Improvements in or relating to the tanning of leather or hides with mineral tanning agents
GB462977A Improved manufacture of cosmetic products
GB442765A Method for improving the qualities of hydraulic binding means
GB443396A Improved process for the manufacture of a therapeutically active derivative of phthalic acid
GB413016A A process for the production of derivatives of albumin cleavage products
DE618792C Fertilization and soil improvement
GB371770A Addition means and method for improving cement and cement mortar
GB361094A Improvements in and relating to mortars, concretes and the like
GB355583A A process for making cement impervious
GB301509A Improvements in and relating to hydraulic binding agents
GB312216A Process for the treatment of concrete surfaces
GB274175A Process for the manufacture of n-monoalkyl-p-aminophenol
GB254204A Process for producing amino-oxy compounds of the aromatic series by electrolysis
DE437002C Process for the preparation of aminooxy compounds of the aromatic series
DE437637C Process for the production of solid, water-soluble, basic aluminum acetate and aluminum formate
US1196329A Process for distilling acetic acid and the like.