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CIRCLE PROSCO INC

Overview
  • Total Patents
    18
About

CIRCLE PROSCO INC has a total of 18 patent applications. Its first patent ever was published in 1993. It filed its patents most often in Australia, Canada and EPO (European Patent Office). Its main competitors in its focus markets surface technology and coating and thermal processes are LAWRENCE HOLDINGS OVERSEAS LTD, KOREA BUNDY CO LTD and CHANGSHU OUDI PIPE IND CO LTD.

Patent filings per year

Chart showing CIRCLE PROSCO INCs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Tomlinson Charles E 17
#2 Muehl Thomas P 6
#3 Morton William H 6
#4 Parker Douglas K 6
#5 Parker D K 1
#6 Tomlinson C E 1
#7 Muehl T P 1

Latest patents

Publication Filing date Title
CN1177987A Process of coating metal surfaces to produce a highly hydrophilic, higly corrosion resistant surface with bioresistance and low odor impact characteristics
EP0795044A1 A process of coating metal surfaces to produce a highly hydrophilic, highly corrosion resistant surface with bioresistance and low odor impact characteristics
US5441580A Hydrophilic coatings for aluminum
US5380374A Conversion coatings for metal surfaces