| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 22 |
| # | Industry | |
|---|---|---|
| #1 | Measurement | |
| #2 | Machines | |
| #3 | Control | |
| #4 | Mechanical elements | |
| #5 | Chemical engineering | |
| #6 | Agriculture |
| # | Technology | |
|---|---|---|
| #1 | Measuring volume | |
| #2 | Unspecified technologies | |
| #3 | Systems controlling non-electric variables | |
| #4 | Separation | |
| #5 | Special measuring | |
| #6 | Venting or aerating devices | |
| #7 | Servomotors | |
| #8 | Animal care |
| # | Name | Total Patents |
|---|---|---|
| #1 | Borden Moro M | 12 |
| #2 | Ledoux John W | 11 |
| #3 | Sweeten Allen W | 2 |
| #4 | Ball Norman Z | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US2250700A | Air-operated meter | |
| US1999080A | Pressure differential connection for meters | |
| US2033177A | Recording mechanism | |
| US1956309A | Mechanism for indicating flow | |
| US1900273A | Flow controller | |
| US1843330A | Fluid measuring mechanism | |
| US1522490A | Flow controller | |
| US1757968A | Fluid meter | |
| US1649602A | Fluid meter | |
| US1810141A | Liquid meter | |
| US1602563A | Flow controller | |
| US1296041A | Fluid-meter. | |
| US1206806A | Liquid-rate controller. | |
| US926721A | Loss-of-head and rate-of-flow gage. | |
| US883383A | Automatic fluid-controller. | |
| US879557A | Automatic flow-controller. | |
| US879558A | Automatic flow-controller. | |
| US956375A | Liquid-meter. | |
| US956374A | Liquid-meter. | |
| US872436A | Liquid-meter. |