| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 3 | |
| #2 | Brazil | 2 | |
| #3 | Canada | 2 | |
| #4 | EPO (European Patent Office) | 2 | |
| #5 | Hungary | 2 | |
| #6 | Australia | 1 | |
| #7 | Hong Kong | 1 |
| # | Industry | |
|---|---|---|
| #1 | Machine tools | |
| #2 | Machines | |
| #3 | Civil engineering |
| # | Technology | |
|---|---|---|
| #1 | Unspecified technologies | |
| #2 | Milling | |
| #3 | Accessories for machine tools | |
| #4 | Machines for making railways | |
| #5 | Turning |
| # | Name | Total Patents |
|---|---|---|
| #1 | Hughes Donald R | 9 |
| #2 | Grabowski Charles D | 6 |
| #3 | Hughes Donald | 2 |
| #4 | Donald R Hughes | 2 |
| #5 | Greenleaf William P | 2 |
| #6 | Stanley B Howles | 1 |
| #7 | Greenleaf William | 1 |
| #8 | James M Greenleaf | 1 |
| #9 | Travis J Biggs | 1 |
| #10 | Biggs Travis J | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US2016130768A1 | Rail re-profiling method and apparatus |