| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 3 | |
| #2 | Brazil | 2 | |
| #3 | WIPO (World Intellectual Property Organization) | 2 | |
| #4 | Australia | 1 | |
| #5 | Canada | 1 | |
| #6 | EPO (European Patent Office) | 1 | |
| #7 | Mexico | 1 |
| # | Industry | |
|---|---|---|
| #1 | Engines, pumps and turbines | |
| #2 | Thermal processes | |
| #3 | Environmental technology | |
| #4 | Machines | |
| #5 | Civil engineering |
| # | Technology | |
|---|---|---|
| #1 | Non-positive-displacement pumps | |
| #2 | Air-conditioning | |
| #3 | Climate change mitigation in transportation | |
| #4 | Steam turbines | |
| #5 | Roof coverings | |
| #6 | Unspecified technologies |
| # | Name | Total Patents |
|---|---|---|
| #1 | Boyd Walter K | 8 |
| #2 | Fairbank William C | 8 |
| #3 | Boyd Walter | 2 |
| Publication | Filing date | Title |
|---|---|---|
| US6244821B1 | Low speed cooling fan | |
| US4243468A | Roofing machine |