POWELL DAVID W has a total of 22 patent applications. Its first patent ever was published in 1988. It filed its patents most often in United States, WIPO (World Intellectual Property Organization) and China. Its main competitors in its focus markets civil engineering, machines and environmental technology are CHU MINGJIN, COELHO DOS SANTOS J and GUDMUNDSSON EDGAR.
# | Country | Total Patents | |
---|---|---|---|
#1 | United States | 6 | |
#2 | WIPO (World Intellectual Property Organization) | 6 | |
#3 | China | 3 | |
#4 | EPO (European Patent Office) | 2 | |
#5 | Australia | 1 | |
#6 | Canada | 1 | |
#7 | EAPO (Eurasian Patent Organization) | 1 | |
#8 | Poland | 1 | |
#9 | South Africa | 1 |
# | Industry | |
---|---|---|
#1 | Civil engineering | |
#2 | Machines | |
#3 | Environmental technology | |
#4 | Furniture and games | |
#5 | Agriculture |
# | Technology | |
---|---|---|
#1 | General building constructions | |
#2 | Structural elements | |
#3 | Shaping clay | |
#4 | Finishing work on buildings | |
#5 | Climate change adaptation technologies | |
#6 | Skates | |
#7 | Harvesting | |
#8 | Swimming pools | |
#9 | Construction of roads |
# | Name | Total Patents |
---|---|---|
#1 | Powell David W | 19 |
Publication | Filing date | Title |
---|---|---|
US10494771B1 | Precast park refuge construction method and apparatus | |
WO2012106650A1 | Precast construction method and apparatus | |
WO2008144344A2 | Method and apparatus for precast wall and floor block system | |
US2007261335A1 | Precast construction method and apparatus for variable size elevated platform | |
WO2007134073A2 | Construction method using precast planar frame elements | |
US2006150556A1 | Method and apparatus for precision slip-forming of complex precast shapes | |
EP1629160A1 | A structure and method for prefabricated construction | |
CA2507005A1 | Method and apparatus for precast and framed block element construction | |
US4872265A | Trimmer attachment |