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AMERICAN SYNTEX INC

Overview
  • Total Patents
    22
About

AMERICAN SYNTEX INC has a total of 22 patent applications. Its first patent ever was published in 1952. It filed its patents most often in United Kingdom, Canada and Switzerland. Its main competitors in its focus markets organic fine chemistry are BEIJING ZIZHU PHARMACEUTICAL CO LTD, REICHSTEIN TADEUS DR and ROCHE ORGANON INC.

Patent filings in countries

World map showing AMERICAN SYNTEX INCs patent filings in countries
# Country Total Patents
#1 United Kingdom 11
#2 Canada 5
#3 Switzerland 2
#4 United States 2
#5 Germany 1
#6 France 1

Patent filings per year

Chart showing AMERICAN SYNTEX INCs patent filings per year from 1900 to 2020

Focus industries

Focus technologies

# Technology
#1 Steroids

Top inventors

# Name Total Patents
#1 Djerassi Carl 6
#2 Rosenkranz George 6
#3 George Rosenkranz 4
#4 Carl Djerassi 4
#5 Franz Sondheimer 1
#6 Romo Jesus 1
#7 Stork Gilbert 1
#8 Luis Miramontes 1
#9 Miramontes Luis 1
#10 Ringold Howard J 1

Latest patents

Publication Filing date Title
GB742888A Cyclopentanophenanthrene derivatives and a method for the preparation thereof
GB761351A Cyclopentanophenanthrene derivatives and a method for the preparation thereof
GB772799A Cyclopentanophenanthrene derivatives and a method for the preparation thereof
GB759705A Cyclopentanophenanthrene derivatives and a method for the preparation thereof
GB748887A Cyclopentanophenanthrene derivatives and a method for the preparation thereof
US2712028A Process for preparing 11alpha-acyloxy-3, 20-diketo pregnanes
GB746953A Cyclopentanophenanthrene compounds and a novel process for the production thereof
US2702290A Method for preparation of cyclopentanophenanthrene derivatives
GB748860A Cyclopentanophenanthrene derivatives and process for the preparation thereof
GB748824A Cyclopentanophenanthrene derivatives and process for the preparation thereof
GB744981A New cyclopentanophenanthrene derivatives and method for the preparation thereof
GB718327A Cyclopentanophenanthrene compounds and a method for the preparation thereof
GB736970A Process for the preparation of keto-steroid compounds
CA530735A 11-keto steroid production
CA498231A Spirostan-3-ol-20-one prepared by hydrogenation of the 3,11-dione
CA571750A .DELTA.4-19-NOR-17.alpha.-METHYLANDROSTEN-17.beta.-OL-3 ONE
CA529033A ALLOPREGNANE-3.beta., 11.alpha., 17.alpha.,21-TETROL-20-21 MONOACETATE
CA571510A .DELTA.4-19-NOR-17.alpha.-ETHINYLANDROSTEN-17.beta.-OL-3 ONE