| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 10 | |
| #2 | Canada | 1 |
| # | Industry | |
|---|---|---|
| #1 | Engines, pumps and turbines | |
| #2 | Machines | |
| #3 | Mechanical elements | |
| #4 | Consumer goods | |
| #5 | Civil engineering |
| # | Technology | |
|---|---|---|
| #1 | Machines | |
| #2 | Laundering textiles | |
| #3 | Cyclically operating valves | |
| #4 | Unspecified technologies | |
| #5 | Venting or aerating devices | |
| #6 | Servomotors | |
| #7 | Installations for obtaining water | |
| #8 | Rotary pistons |
| # | Name | Total Patents |
|---|---|---|
| #1 | Coffield Peter T | 10 |
| #2 | Coffield James L | 2 |
| Publication | Filing date | Title |
|---|---|---|
| US1205857A | Water-motor. | |
| CA158939A | Water motor | |
| US1105547A | Sanitary drinking-cup. | |
| US1105546A | Mounting of dolly-wheels and dashers. | |
| US1098712A | Drain-spigot. | |
| US1036192A | Driving mechanism for laundry-machines. | |
| US1008954A | Water-motor. | |
| US1001821A | Water-motor. | |
| US1018961A | Hydraulic motor. | |
| US1049456A | Reciprocating fluid-pressure motor. | |
| US926689A | Rotary pressure-motor. |