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.
# | Country | Total Patents | |
---|---|---|---|
#1 | United States | 6 | |
#2 | Canada | 4 | |
#3 | Australia | 1 | |
#4 | EPO (European Patent Office) | 1 | |
#5 | WIPO (World Intellectual Property Organization) | 1 |
# | Industry | |
---|---|---|
#1 | Civil engineering | |
#2 | Chemical engineering | |
#3 | Machines | |
#4 | Mechanical elements |
# | Technology | |
---|---|---|
#1 | Sewers | |
#2 | Cleaning | |
#3 | Unspecified technologies | |
#4 | Mechanical control devices | |
#5 | Domestic plumbing installations |
# | Name | Total Patents |
---|---|---|
#1 | Kaye Paul S | 11 |
#2 | Kaye Diane M | 2 |
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 |