| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 13 |
| # | Industry | |
|---|---|---|
| #1 | Machines | |
| #2 | Civil engineering | |
| #3 | Mechanical elements | |
| #4 | Control | |
| #5 | Engines, pumps and turbines |
| # | Technology | |
|---|---|---|
| #1 | Unspecified technologies | |
| #2 | Earth drilling | |
| #3 | Venting or aerating devices | |
| #4 | Pumps | |
| #5 | Systems controlling non-electric variables |
| # | Name | Total Patents |
|---|---|---|
| #1 | Peters Clifford M | 12 |
| #2 | Garrett Henry U | 10 |
| #3 | Mcmurry Everett D | 2 |
| #4 | Brown Norman F | 1 |
| #5 | Dinning Robert W | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US2940477A | Controller | |
| US2761465A | Valve | |
| US2685886A | Pressure responsive valve | |
| US2759488A | Relief valve | |
| US2709445A | Bellows mounting for valve | |
| US2619109A | Relief valve | |
| US2620740A | Valve | |
| US2620741A | Pressure responsive valve and valve system | |
| US2550410A | Flow controller | |
| US2588715A | Differential flow valve | |
| US2519242A | Pressure responsive valve | |
| US2629335A | Gas lift apparatus | |
| US2663265A | Well flowing device |