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CROWN UNLIMITED MACH INC

Overview
  • Total Patents
    14
About

CROWN UNLIMITED MACH INC has a total of 14 patent applications. Its first patent ever was published in 1987. It filed its patents most often in United States, Canada and China. Its main competitors in its focus markets machine tools and machines are SURINA MICHAEL, JOHN HUGO and SA LI CO SNC.

Patent filings per year

Chart showing CROWN UNLIMITED MACH INCs patent filings per year from 1900 to 2020

Focus industries

Top inventors

# Name Total Patents
#1 Stroup Steven L 7
#2 Stroup Sr Steven L 2
#3 Stroup Ii Steven L 2
#4 Stroup Steven L Sr 2
#5 Suteiibun Eru Sutoruupu Shinia 1
#6 Vanderlaan Fred J 1
#7 Stroup Jr Steven L 1

Latest patents

Publication Filing date Title
WO9415743A1 Method and apparatus for separating tubing
US5450668A Method and apparatus for separating tubing
US5472126A Tube slicing technique
US5143268A Flat tube cutting techniques
US4839950A Method for making a tube and fin heat exchanger
US4780955A Apparatus for making a tube and fin heat exchanger
US4771536A Expansion rod mounting structure