| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 10 | |
| #2 | Canada | 5 |
| # | Industry | |
|---|---|---|
| #1 | Machines | |
| #2 | Mechanical elements |
| # | Technology | |
|---|---|---|
| #1 | Venting or aerating devices | |
| #2 | Unspecified technologies | |
| #3 | Unspecified technologies |
| # | Name | Total Patents |
|---|---|---|
| #1 | Parker Frank H | 13 |
| #2 | Webb Ernest C | 2 |
| #3 | Becks Vernon C | 2 |
| Publication | Filing date | Title |
|---|---|---|
| US3472484A | Sealing means for valve ports | |
| US3185176A | Sealing means for valves | |
| US3189048A | Balanced mixing valve | |
| US3193245A | Fluid pressure sealing means for valve ports | |
| US2911009A | Mixing valve | |
| US2845949A | Mixing valve | |
| US2845948A | Mixing valve | |
| US2753891A | Mixing valve | |
| US2644483A | Hot and cold water mixing valve | |
| US2614851A | Mixing valve | |
| CA608932A | Plumbing fixture | |
| CA564859A | Mixing valve | |
| CA743378A | Sealing means for valves | |
| CA743379A | Balanced mixing valve | |
| CA564858A | Mixing valve |