| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 8 | |
| #2 | Canada | 4 |
| # | Industry | |
|---|---|---|
| #1 | Mechanical elements | |
| #2 | Chemical engineering | |
| #3 | Machines | |
| #4 | Measurement | |
| #5 | Surface technology and coating |
| # | Technology | |
|---|---|---|
| #1 | Pipes | |
| #2 | Unspecified technologies | |
| #3 | Cleaning | |
| #4 | Devices for applying fluent materials | |
| #5 | Measuring volume |
| # | Name | Total Patents |
|---|---|---|
| #1 | Hill Arthur M | 10 |
| #2 | Howard Posy A | 2 |
| #3 | Fugate James A | 2 |
| #4 | Harris Lucian F | 1 |
| #5 | Boyle Robert E | 1 |
| #6 | Hopson Thomas P | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US3120118A | Fluid meter calibrator | |
| US3070056A | Apparatus for repairing pipelines | |
| US3107379A | Pipeline cleaner propelling cup | |
| US3070065A | Method and apparatus for coating pipes | |
| US2958884A | Variable-diameter pipe line scraper | |
| US2870934A | Scraper trap closure | |
| US2845952A | Nipple plugging device | |
| US2679173A | Pipe tapping machine | |
| CA531586A | Pipe tapping machine | |
| CA662724A | Pipeline cleaner | |
| CA655195A | Variable-diameter pipe line scraper | |
| CA756760A | Power supply monitoring system |