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BERKELEY CHEMICAL CORP

Overview
  • Total Patents
    23
About

BERKELEY CHEMICAL CORP has a total of 23 patent applications. Its first patent ever was published in 1956. It filed its patents most often in United States, United Kingdom and Canada. Its main competitors in its focus markets organic fine chemistry, pharmaceuticals and chemical engineering are ROBERT S A LAB, COOK IMAGING CORP and KAPPA BIOSCIENCE AS.

Patent filings in countries

World map showing BERKELEY CHEMICAL CORPs patent filings in countries
# Country Total Patents
#1 United States 12
#2 United Kingdom 5
#3 Canada 2
#4 Germany 2
#5 France 2

Patent filings per year

Chart showing BERKELEY CHEMICAL CORPs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Joseph Halpern 9
#2 Sidney Beinfest 9
#3 Halpern Joseph 8
#4 Beinfest Sidney 8
#5 Phillip Adams 8
#6 Adams Phillip 5
#7 Gister Sidney 3
#8 Zelkind Michael 3
#9 Sidney Gister 2
#10 Weiss Marvin 1

Latest patents

Publication Filing date Title
US3161676A Preparation of substituted alkyl ureas
GB993144A Preparation of lower alkyl carbamates
GB993143A Preparation of lower alkyl carbamates
US3013065A Preparation of lower alkyl carbamates with interrupted effluent flow
US3013064A Preparation of lower alkyl carbamates
US3014807A Liquid mixtures of alkyl carbamates
US2957026A Preparation of mucochloric anhydride
US2996541A Purification of p (nu-acetyl amino) benzene sulfonyl chloride
GB871313A Process for drying organic pharmaceuticals
US2857681A Process for drying organic pharmaceuticals
GB839408A Preparation of organic dicarbamates
US2885419A Amino alkyl silicates
US2857680A Drying of alkanediol dicarbamates
US2837561A Preparation of organic monocarbamates
US2934559A Preparation of diol dicarbamates at subatmospheric pressure
US2837560A Preparation of organic dicarbamates
CA617799A Process for drying organic pharmaceuticals
CA614535A Preparation of organic dicarbamates