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COLUMBIA CHEM CORP

Overview
  • Total Patents
    17
About

COLUMBIA CHEM CORP has a total of 17 patent applications. Its first patent ever was published in 1975. It filed its patents most often in United States, WIPO (World Intellectual Property Organization) and Australia. Its main competitors in its focus markets surface technology and coating and basic materials chemistry are COVENTYA GMBH, TOUSETSU KK and ROHCO INC.

Patent filings in countries

World map showing COLUMBIA CHEM CORPs patent filings in countries

Patent filings per year

Chart showing COLUMBIA CHEM CORPs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Rosenberg William E 14
#2 Ludwig Robert J 6
#3 Lofland Shane F 2
#4 Rosenberg William E Sr 1
#5 William E Rosenberg 1
#6 Recker Andrew C 1

Latest patents

Publication Filing date Title
WO2007123807A2 Chromium(vi)-free, aqueous acidic chromium(iii) conversion solutions
US2004170848A1 Corrosion inhibiting composition for metals
US2004084322A1 Brightener additive and bath for alkaline cyanide-free zinc electroplating
US4545870A Aqueous acid plating bath and brightener composition for producing bright electrodeposits of tin
US4530741A Aqueous acid plating bath and brightener composition for producing bright electrodeposits of tin
US4417957A Aqueous acid plating bath and brightener mixture for producing semibright to bright electrodeposits of tin
US4100040A Electrodeposition of bright zinc utilizing aliphatic ketones
US4072582A Aqueous acid plating bath and additives for producing bright electrodeposits of tin
US4049510A Baths and additives for the electrodeposition of bright zinc
US4007098A Baths and additives for the electrodeposition of bright zinc
US3977949A Acidic plating bath and additives for electrodeposition of bright tin
US3988219A Baths and additives for the electrodeposition of bright zinc