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DYK & COMPANY INC VAN

Overview
  • Total Patents
    25
About

DYK & COMPANY INC VAN has a total of 25 patent applications. Its first patent ever was published in 1947. It filed its patents most often in United States, Canada and EPO (European Patent Office). Its main competitors in its focus markets organic fine chemistry, pharmaceuticals and machines are NEWMEDION CO LTD, AYUKAWA TAIZOU and LUBOWE IRWIN I.

Patent filings in countries

World map showing DYK & COMPANY INC VANs patent filings in countries
# Country Total Patents
#1 United States 16
#2 Canada 5
#3 EPO (European Patent Office) 3
#4 Spain 1

Patent filings per year

Chart showing DYK & COMPANY INC VANs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Conner Donald E 13
#2 Kreps Saul I 5
#3 Fogel Arnold W 4
#4 Cumpelik Boris M 3
#5 Schreiber Albert A 2
#6 Connor Donald E 2
#7 Ciaudelli Joseph P 2
#8 Klein Kenneth 2
#9 Zak Henry C 1
#10 Isermann Howard P 1

Latest patents

Publication Filing date Title
US4613499A Substituted cinnamal dialkyl malonates in sunscreening, skin care compositions
CA1242740A Benzene sulfonate quaternary ammonium salts of organic sunscreen carboxylic acids
US4515774A Liquid, cinnamal dialkyl malonates as sole organic sunscreens
EP0100651A1 Dialkyl malonates as organic suncreen adjuvants
CA1185533A Dialkyl malonates as organic sunscreen adjuvants
US4457911A Dialkyl malonates as organic sunscreen adjuvants
US4342706A Benzene sulfonate quaternary ammonium salts
US4333920A Benzalphthalides and broad spectrum sun screens
US4078054A Sun screen compositions of unsaturated esters of p-dimethylaminobenzoic acid
US4038294A Fatty halo alkanoate quaternaries of dialkylaminopropylamides
US4026818A Transparent ringing gels
US4012398A Quaternary halides of mink oil amides
CA1002534A Quaternary halides of gluconamides
ES354870A1 Procedure for the preparation of a compound to protect human skin. (Machine-translation by Google Translate, not legally binding)
US3065144A Sun screening method using acetylated p-amino-cinnamates
US3030275A Method of protecting the skin from ultraviolet radiation
US3098795A Cosmetic compositions containing lactic acid esters of fatty alcohols
US2976217A Sunscreening agents
US3058886A Skin-protecting sunscreening process
US2659689A Benzoic esters