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SCHWEIZERHALL SAEUREFAB

Overview
  • Total Patents
    178
About

SCHWEIZERHALL SAEUREFAB has a total of 178 patent applications. Its first patent ever was published in 1929. It filed its patents most often in Switzerland, France and United Kingdom. Its main competitors in its focus markets materials and metallurgy, organic fine chemistry and environmental technology are BOZEL MALETRA PROD CHIMIQUES, GUARESCHI PIETRO and URTEK LLC.

Patent filings in countries

World map showing SCHWEIZERHALL SAEUREFABs patent filings in countries

Patent filings per year

Chart showing SCHWEIZERHALL SAEUREFABs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Saeurefabrik Schweizerhall 38
#2 Frey Walter 11
#3 Walter Frey 9
#4 Degischer Gerhard 9
#5 Gallegra Pasquale 8
#6 Frey Dr Walter 6
#7 Degischer Gerhard Dr 6
#8 Otto Saladin 5
#9 Frey Walter Dr 5
#10 Gallegra Pasquale Dr 4

Latest patents

Publication Filing date Title
EP0679627A1 Process for the preparation of halogenated ethers
EP0549531A1 Process for preparing acid anhydrides
EP0504107A2 Process for the preparation of chlorinated esters of carboxylic acids
EP0508943A1 Process for the preparation of halogenated esters of carboxylic acids
DE2729911A1 PROCESS FOR THE PRODUCTION OF ALPHA-CHLORAL CANOYL CHLORIDES
DE1040142B Process to improve the conductivity of the bulk material and the current transfer from the electrodes to the bulk material in electrical resistance ovens
GB818621A Apparatus for transmitting electric current to carbon-containing and other conductive loose material for electric heating
ES224742A1 Procedure and device for transmitting electrical current to conductored ambertoned material, especially with carbon content (Machine-translation by Google Translate, not legally binding)
ES220731A1 A procedure for the selective clorination of raw materials, containing titanium oxide and iron, especially ilmenite (Machine-translation by Google Translate, not legally binding)
FR1124980A Process for the selective chlorination of raw materials containing titanium oxide and iron oxide, in particular ilmenite
CH325452A Process for the selective chlorination of raw materials containing titanium and iron oxide, in particular ilmenite
GB724051A Apparatus for cooling hot gaseous suspensions of finely divided solids
GB715864A Process for the production of purified anhydrous zirconium tetrahalides
US2682445A Process for the production of purified anhydrous zirconium tetrahalide
US2635946A Process and apparatus for the production of finely divided metallic oxides useful as pigments
GB708970A Process for the preparation of finely divided metal oxides and silicon dioxide
CH299364A Process for the production of titanium tetrachloride.
GB703504A Production of finely divided metal oxides
US2675891A Process for the separation of metal chlorides from chlorination gases
GB684016A Process for the preparation of neutral, inorganic oxide pigments