POLY JOHN ENTERPRISES CORP has a total of 14 patent applications. Its first patent ever was published in 1984. It filed its patents most often in United States and Canada. Its main competitors in its focus markets civil engineering, machines and environmental technology are BJA TRADING LTD, ROYAL WOLF TRADING AUSTRALIA PTY LTD and GUNNEBO TROAX AB.
# | Country | Total Patents | |
---|---|---|---|
#1 | United States | 9 | |
#2 | Canada | 5 |
# | Industry | |
---|---|---|
#1 | Civil engineering | |
#2 | Machines | |
#3 | Environmental technology | |
#4 | Furniture and games | |
#5 | Thermal processes |
# | Name | Total Patents |
---|---|---|
#1 | Harding George W | 13 |
#2 | Hiskes George | 3 |
#3 | Mullett Rodney M | 1 |
#4 | Tagg Richard L | 1 |
Publication | Filing date | Title |
---|---|---|
US5500960A | Flush system for outdoor portable toilets | |
US4922557A | Outdoor toilet holding tank ventilation system | |
US4918765A | Portable toilet cabana | |
CA1311898C | Portable toilet cabana | |
US4895400A | Slide latch for cabana doors | |
US4761840A | Portable toilet cabana | |
US4831671A | Portable toilet cabana | |
CA1255852A | Portable toilet cabana | |
US4793100A | Slide latch for cabana doors | |
US4637299A | Vent opening for portable building wall | |
CA1251314A | Portable toilet cabana | |
US4577351A | Portable toilet cabana |