| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 5 | |
| #2 | Canada | 4 | |
| #3 | Australia | 3 | |
| #4 | Brazil | 3 | |
| #5 | African Regional Industrial Property Organization | 2 | |
| #6 | Israel | 2 | |
| #7 | South Africa | 2 | |
| #8 | Chile | 1 | |
| #9 | China | 1 | |
| #10 | EAPO (Eurasian Patent Organization) | 1 | |
| #11 | India | 1 | |
| #12 | Japan | 1 | |
| #13 | Republic of Korea | 1 | |
| #14 | Mexico | 1 | |
| #15 | Malaysia | 1 | |
| #16 | New Zealand | 1 | |
| #17 | Peru | 1 | |
| #18 | Singapore | 1 | |
| #19 | WIPO (World Intellectual Property Organization) | 1 |
| # | Industry | |
|---|---|---|
| #1 | Engines, pumps and turbines | |
| #2 | Environmental technology | |
| #3 | Electrical machinery and energy | |
| #4 | Transport | |
| #5 | Civil engineering |
| # | Name | Total Patents |
|---|---|---|
| #1 | Ferguson Frederick D | 29 |
| #2 | Frederick D Ferguson | 3 |
| Publication | Filing date | Title |
|---|---|---|
| US2013069372A1 | Systems and methods to generate electricity using a three vane water turbine | |
| US5348251A | Dirigible airship | |
| CA1168643A | Aircraft having buoyant gas balloon | |
| US4365772A | Aircraft having buoyant gas balloon | |
| US4366936A | Aircraft having buoyant gas balloon | |
| BR8005068A | Aircraft | |
| AU6112680A | Buoyant gas balloon |