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KEYSTONE CHEMURGIC CORP

Overview
  • Total Patents
    30
About

KEYSTONE CHEMURGIC CORP has a total of 30 patent applications. Its first patent ever was published in 1955. It filed its patents most often in United States, Canada and France. Its main competitors in its focus markets organic fine chemistry, materials and metallurgy and machines are LIANYUNGANG JINDUN AGROCHEMICAL CO LTD, HENAN YUCHEN PHARMACEUTICAL CO LTD and PALOMO COLL A L.

Patent filings in countries

World map showing KEYSTONE CHEMURGIC CORPs patent filings in countries
# Country Total Patents
#1 United States 13
#2 Canada 5
#3 France 4
#4 United Kingdom 4
#5 Denmark 2
#6 Switzerland 1
#7 Germany 1

Patent filings per year

Chart showing KEYSTONE CHEMURGIC CORPs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Eyck Schenck Remsen Ten 8
#2 Schenck Remsen Ten Eyck 6
#3 Buzas August J 5
#4 Schenck Remsen T 4
#5 Schenck Remsen T E 4
#6 Schenk Remsen T 1
#7 Dusinski John M 1
#8 Schenck Sarah K 1
#9 Harry Rubinstein 1

Latest patents

Publication Filing date Title
US3418087A Hydrated magnesium aluminate containing bound sulfate and processes for preparing same
US3300277A Hydrated magnesium aluminate and process for preparing same
US3446828A Process for making aluminum alkoxides and separation of impurities therefrom
US3323992A Antacid composition of hydrated magnesium aluminate containing bound sulfate
US3151123A Acid-soluble chlorophyllins and their production
US3093678A Production of 1-carbethoxy-2, 6, 6-trimethyl-2-cyclohexen-4-one
GB933405A Hydrated magnesium aluminate
GB950450A Hydrated metal aluminate
GB892251A Water-soluble sulphonimido esters
US3181993A Water-soluble salicylic acid derivatives as analgesics and antipyretics
US2945853A Bacteriostatic compounds and processes for their preparation
GB820439A Relating to derivatives of salicylic acid
US2958626A Basic aluminum magnesium carbonate
US2900410A Water-soluble derivatives of salicylic acid and process for preparing same
US3047602A Basic aluminum salts of acylamino-aliphatic mono-and polycarboxylic acids and a process for preparing same
US2918485A Dihydroxy aluminum salicylates
US2793124A Process to convert bixin to a food color and the resulting product
CA732534A Hydrated metal aluminate
CA732533A Hydrated metal aluminate
CA665134A Sulfonimidoesters