| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 2 | |
| #2 | WIPO (World Intellectual Property Organization) | 2 | |
| #3 | Australia | 1 | |
| #4 | Canada | 1 | |
| #5 | EAPO (Eurasian Patent Organization) | 1 | |
| #6 | Estonia | 1 | |
| #7 | EPO (European Patent Office) | 1 | |
| #8 | Hong Kong | 1 | |
| #9 | Israel | 1 | |
| #10 | Norway | 1 | |
| #11 | New Zealand | 1 | |
| #12 | Poland | 1 |
| # | Industry | |
|---|---|---|
| #1 | Transport | |
| #2 | Environmental technology |
| # | Technology | |
|---|---|---|
| #1 | Climate change mitigation in transportation | |
| #2 | Ships | |
| #3 | Marine propulsion |
| # | Name | Total Patents |
|---|---|---|
| #1 | Harley Howard D | 12 |
| Publication | Filing date | Title |
|---|---|---|
| US10160517B1 | Watercraft hull with angled keels | |
| WO2010039136A1 | Articulating surface drive | |
| US7431620B1 | Articulating surface drive | |
| NZ331956A | Pressurized gas cushions to reduce surface drag on a vessel hull |