| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 9 | |
| #2 | EPO (European Patent Office) | 2 | |
| #3 | WIPO (World Intellectual Property Organization) | 2 | |
| #4 | Australia | 1 | |
| #5 | Brazil | 1 | |
| #6 | Canada | 1 | |
| #7 | Mexico | 1 | |
| #8 | New Zealand | 1 |
| # | Industry | |
|---|---|---|
| #1 | Civil engineering | |
| #2 | Environmental technology | |
| #3 | Mechanical elements | |
| #4 | Furniture and games |
| # | Technology | |
|---|---|---|
| #1 | Dredging | |
| #2 | Hydraulic engineering | |
| #3 | Earth drilling | |
| #4 | Contaminated soil reclamation | |
| #5 | Pipes | |
| #6 | Water treatment | |
| #7 | Climate change mitigation in wastewater treatment | |
| #8 | Chairs and beds | |
| #9 | Foundations and excavations | |
| #10 | Sewers |
| # | Name | Total Patents |
|---|---|---|
| #1 | Justice Donald R | 18 |
| Publication | Filing date | Title |
|---|---|---|
| US5252226A | Linear contaminate remediation system | |
| US5118230A | Method and apparatus for installation of leachate containment system | |
| US5072972A | Coupling device | |
| US5059064A | Horizontal dewatering system | |
| US4950103A | Corrugated drainage tube | |
| US4893365A | Adjustable king-sized mattress | |
| US4971690A | Waste water drainage and recovery system | |
| US4927292A | Horizontal dewatering system | |
| US4871281A | Trenching tool for installing perforated pipe |