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LEWISAN PRODUCTS INC

Overview
  • Total Patents
    13
About

LEWISAN PRODUCTS INC has a total of 13 patent applications. Its first patent ever was published in 1986. It filed its patents most often in United States, Canada and Australia. Its main competitors in its focus markets civil engineering, chemical engineering and machines are FLEXIBLE SEWERTOOL CORP, CLEANPIPE AS and SHONE ISAAC.

Patent filings per year

Chart showing LEWISAN PRODUCTS INCs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Kaye Paul S 11
#2 Kaye Diane M 2

Latest patents

Publication Filing date Title
US5173984A Self-drying powered drain auger
CA2008598A1 Tube-cleaning apparatus
US4914776A Tube-cleaning apparatus
CA1308867C Drain-cleaning implement
US4791828A Crank handle apparatus
US4763374A Powered drain cleaner
US4793017A Vibrating drain-cleaning implement
US4706321A Drain-cleaning implement