| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 8 | |
| #2 | Canada | 4 |
| # | Industry | |
|---|---|---|
| #1 | Mechanical elements | |
| #2 | Machines | |
| #3 | Civil engineering |
| # | Technology | |
|---|---|---|
| #1 | Venting or aerating devices | |
| #2 | Unspecified technologies | |
| #3 | Installations for obtaining water | |
| #4 | Pipes |
| # | Name | Total Patents |
|---|---|---|
| #1 | Lee Henry B | 6 |
| #2 | Lolley William H | 3 |
| #3 | Bjornulf Johnsen | 1 |
| #4 | Brooks Joseph | 1 |
| #5 | Stone Jabez | 1 |
| #6 | Whitehouse John H | 1 |
| #7 | Joseph Brooks | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US2057103A | Valve | |
| US1919233A | Valve | |
| US1968779A | Sealing means for valves | |
| US1919232A | Valve | |
| US1830667A | Valve | |
| US1656555A | Valve-stem lubricator | |
| US1021959A | Hydrant. | |
| US633626A | Valve. | |
| CA354693A | Valve | |
| CA341322A | Valve | |
| CA274935A | Valve lubricator | |
| CA341321A | Valve |