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ASH STEVENS INC

Overview
  • Total Patents
    35
About

ASH STEVENS INC has a total of 35 patent applications. Its first patent ever was published in 1965. It filed its patents most often in United States, EPO (European Patent Office) and Australia. Its main competitors in its focus markets organic fine chemistry, pharmaceuticals and machines are FARMAK, SOUR PLIVA and HOECHST LAB.

Patent filings per year

Chart showing ASH STEVENS INCs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Blumbergs Peter 15
#2 Kalamas Richard L 10
#3 Lamontagne Maurice P 10
#4 Markovac Anica 7
#5 Khan Mohammed S 7
#6 Gupta Pranab K 5
#7 Munk Stephen A 5
#8 Ash Arthur B 5
#9 Stevens Calvin L 4
#10 Patel Ambalal 4

Latest patents

Publication Filing date Title
US6989386B2 Pharmaceutically active ornithine derivatives, ammonium salts thereof and methods of making same
US7038038B2 Synthesis of 5-azacytidine
US6887855B2 Forms of 5-azacytidine
US2004039190A1 Process for the preparation of 9-β-anomeric nucleoside analogs
CA2091732A1 A process for the preparation of 2-fluoro-9-(2,3,5-tri-o-benzyl-beta-d-arabinofuranosyl) adenine
AU8283891A Process for the preparation of 9-beta-d-arabinofuranosyl-2-fluoroadenine 5'-phosphate
US5206351A Process for the preparation of 2-amino (2,3,5-tri-o-benzyl-beta-d-arabinofuranosyl)adenine
US5110919A Process for the preparation of 2-amino-9-(2,3,5-tri-o-benzyl-beta-d-arabinofuranosyl) adenine and novel intermediates
US3694498A Alpha, alpha-dimethyl-beta, beta-dimercapto-n-lower alkyl-(phenyl and substituted phenyl) ethylamines
US3729558A Use of certain methylphosphonate diester compounds as insecticides
US3578682A 2,5-bis-(2-n-lower alkyl amino isopropyl)-1,3,4-trithiolanes and process for the preparation thereof
US3501486A Process for the production of 2-pyridine aldoximes
US3522261A Esters of sulfonic acids containing quaternary ammonium groups and process for the preparation thereof
US3467659A Process for the reduction of pyridine n-oxides
US3410858A Esters of sulfonic acids containing quaternary ammonium groups and process for the preparation thereof