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LUDWIG ROSENSTEIN

Overview
  • Total Patents
    28
About

LUDWIG ROSENSTEIN has a total of 28 patent applications. Its first patent ever was published in 1923. It filed its patents most often in United States, Germany and United Kingdom. Its main competitors in its focus markets basic materials chemistry, organic fine chemistry and environmental technology are DREI LILIEN PVG GMBH & CO KG, SUPERVITAMINS SDN BHD and JIANGXI SPICE CHEMICAL IND CO LTD.

Patent filings in countries

World map showing LUDWIG ROSENSTEINs patent filings in countries
# Country Total Patents
#1 United States 22
#2 Germany 3
#3 United Kingdom 3

Patent filings per year

Chart showing LUDWIG ROSENSTEINs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Ludwig Rosenstein 21
#2 Gorin Manuel H 8
#3 Hund Walter J 6
#4 Rosenstein Ludwig 1

Latest patents

Publication Filing date Title
US3446711A Water purification process using a liquid hydrocarbon as a heat transfer medium
US3213633A Separating components of a freeze concentration process by an intermediate density layer
US3205671A Concentration by solid formation
US3098733A Removal of water from aqueous solutions and recovery of fresh water
US2801993A Expanded thiourea
US2800466A Process for treating a mixture of saturated and unsaturated fatty acids with expanded urea
US2746884A Method of tin plating and activated fatty oil composition therefor
US2600431A Adduct of thiourea and chloropicrin and its use as a pesticide
US2534298A Production of sodium carbonate
GB387962A A process for the refining of vegetable and animal oils, fats and waxes
GB391658A A process for refining fats, fatty oils, waxes and the like
US1963505A Process for the refining of vegetable and animal oils
US1885859A Process for refining vegetable oils
US1900132A Process of refining
US1906724A Motor fuel
US1835184A Motor fuel and process of improving same
GB349475A Improvements in or relating to fuels for internal combustion engines
US2013318A Ester of dihydric and polyhydric alcohols
US1943744A Process of removing mercaptans from hydrocarbons
US1832325A Process for removing hydrogen sulphide