Learn more

POWELL DAVID W

Overview
  • Total Patents
    22
  • GoodIP Patent Rank
    232,555
About

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.

Patent filings per year

Chart showing POWELL DAVID Ws patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Powell David W 19

Latest patents

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