| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 8 | |
| #2 | Germany | 2 | |
| #3 | United Kingdom | 2 |
| # | Industry | |
|---|---|---|
| #1 | Mechanical elements | |
| #2 | Machines | |
| #3 | Digital networks | |
| #4 | Weapons | |
| #5 | Agriculture |
| # | Technology | |
|---|---|---|
| #1 | Venting or aerating devices | |
| #2 | Unspecified technologies | |
| #3 | Planting | |
| #4 | Digital information transmission | |
| #5 | Explosiveness missiles |
| # | Name | Total Patents |
|---|---|---|
| #1 | Joseph Heinen | 8 |
| #2 | Heinen Joseph | 1 |
| #3 | Heinen Irving J | 1 |
| #4 | Smith Bert C | 1 |
| Publication | Filing date | Title |
|---|---|---|
| GB777885A | Plug valve | |
| US2795960A | Valve actuating means | |
| US2708094A | Plug valve | |
| US2682174A | Plug type valve with vertical adjustment of plugs | |
| US2609174A | Plug valve | |
| US2596075A | Valve | |
| GB536016A | Valve and sealing means therefor | |
| US2191232A | Valve and sealing means therefor | |
| US2049805A | Valve | |
| US1726829A | Toy gun |