WALKER DAWSON INTERESTS INC has a total of 43 patent applications. Its first patent ever was published in 2000. It filed its patents most often in United States, Australia and Canada. Its main competitors in its focus markets chemical engineering, engines, pumps and turbines and civil engineering are AKROS TRADING CO LTD, BEIJING SHUICHUANG XINNENG TECH CO LTD and POPOV SERGUEI A.
# | Country | Total Patents | |
---|---|---|---|
#1 | United States | 10 | |
#2 | Australia | 5 | |
#3 | Canada | 5 | |
#4 | EPO (European Patent Office) | 5 | |
#5 | WIPO (World Intellectual Property Organization) | 5 | |
#6 | Mexico | 4 | |
#7 | South Africa | 4 | |
#8 | New Zealand | 3 | |
#9 | Israel | 2 |
# | Industry | |
---|---|---|
#1 | Chemical engineering | |
#2 | Engines, pumps and turbines | |
#3 | Civil engineering | |
#4 | Packaging and shipping |
# | Technology | |
---|---|---|
#1 | Siphons | |
#2 | Separation | |
#3 | Dredging | |
#4 | Packaging | |
#5 | Containers for goods storage | |
#6 | Drying solid materials by removing liquid | |
#7 | Cleaning | |
#8 | Separating solids using liquids | |
#9 | Earth drilling | |
#10 | Transport or storage devices |
# | Name | Total Patents |
---|---|---|
#1 | Dawson Richard F | 40 |
#2 | Hutchinson Robert J | 30 |
#3 | Walker Charles G | 5 |
#4 | Dawson Richard Ryan | 1 |
#5 | Harper Robert D | 1 |
#6 | Dawson Richard R | 1 |
#7 | Walker William J | 1 |
Publication | Filing date | Title |
---|---|---|
US2019144216A1 | Systems and Methods for Conveying a Non-Dry Frac Proppant | |
US9375761B1 | Methods for modifying non-standard frac sand to sand with fracking properties | |
US2008044294A1 | In-line jet pumps and methods of use | |
US2006218882A1 | Vacuum system manifold and related methods | |
ZA200500491B | Recirculating jey pump and method of moving material | |
EP1701899A1 | Vacuum container system and related method | |
AU2003259150A1 | Recirculating jet pump and method of moving material | |
US6911145B2 | Apparatus and methods for separating slurried material | |
US6860042B2 | Excavation system employing a jet pump | |
AU3093101A | Jet pump | |
US6322327B1 | Jet pump for transfer of material |