| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 9 | |
| #2 | Canada | 2 |
| # | Industry | |
|---|---|---|
| #1 | Engines, pumps and turbines | |
| #2 | Machines | |
| #3 | Mechanical elements | |
| #4 | Measurement | |
| #5 | Control | |
| #6 | Transport |
| # | Technology | |
|---|---|---|
| #1 | Pumps | |
| #2 | Unspecified technologies | |
| #3 | Venting or aerating devices | |
| #4 | Hand carts | |
| #5 | Unspecified technologies | |
| #6 | Cyclically operating valves | |
| #7 | Special measuring | |
| #8 | Alarm systems |
| # | Name | Total Patents |
|---|---|---|
| #1 | Stumpf John | 11 |
| #2 | Stumpf Laurie | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US2009272206A1 | Transducer matrix film | |
| US2009091459A1 | Child leg monitoring system and method | |
| CA130291A | Uni-directinal flow steam engines | |
| CA130290A | Uni-directional flow steam engine | |
| US722416A | Vacuum-pump. | |
| US706276A | Compressor. | |
| US665145A | Pump. | |
| US648180A | Rotary float-valve. | |
| US642808A | Valve. | |
| US632001A | High-speed pump. | |
| US643831A | Hydraulic motor. |