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COUPLING SYST

Overview
  • Total Patents
    17
About

COUPLING SYST has a total of 17 patent applications. Its first patent ever was published in 1976. It filed its patents most often in United States, Australia and Canada. Its main competitors in its focus markets mechanical elements, machines and electrical machinery and energy are GUEST JOHN INT LTD, TAYLOR KERR and IVETT JONATHON LACHLAN.

Patent filings in countries

World map showing COUPLING SYSTs patent filings in countries
# Country Total Patents
#1 United States 9
#2 Australia 2
#3 Canada 2
#4 United Kingdom 2
#5 Germany 1
#6 France 1

Patent filings per year

Chart showing COUPLING SYSTs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Rieffle Paul F 7
#2 Felker Charles E 6
#3 Royston James M 3
#4 Walsh Robert B 1
#5 Ledonne Alfred D 1
#6 Rieffle P F 1
#7 Halen Jr Richard M 1
#8 Tricini John D 1
#9 Halen Richard M 1
#10 Felker C E 1

Latest patents

Publication Filing date Title
US5131688A Pipe insulator and method for making same
US5069490A Pipe coupling with spring off-set
US4610471A Flange adapters
US4606565A Pipe couplings
GB8423014D0 Pipe couplings
US4538841A Insulated pipe couplings
CA1078427A Jaw assembly for pipe connector
US4316053A Pipe couplings and coupling gaskets
AU4573179A Pipe and tubing connectors
CA1069959A Pipe and tubing connectors
US4127141A Method and apparatus for stopping fluid escape from pipe mains
US4070046A Pipe and tubing connecting sleeve