| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Canada | 5 | |
| #2 | United States | 4 | |
| #3 | United Kingdom | 3 | |
| #4 | Finland | 1 |
| # | Industry | |
|---|---|---|
| #1 | Mechanical elements | |
| #2 | Machines |
| # | Technology | |
|---|---|---|
| #1 | Venting or aerating devices | |
| #2 | Unspecified technologies |
| # | Name | Total Patents |
|---|---|---|
| #1 | Paul Herman L Jr | 5 |
| #2 | Paul Jr Herman L | 4 |
| #3 | Taylor Jr Ruel E | 1 |
| #4 | Lonis Paul Jr Herman | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US2923316A | Regulating valve | |
| GB654851A | Improvements in or relating to valve structures | |
| GB663367A | Improvements in or relating to valve structures | |
| US2666617A | Ball valve | |
| US2629578A | Ball valve | |
| US2629579A | Ball valve | |
| GB649321A | Improvements in or relating to valves | |
| CA508402A | Valve | |
| CA508405A | Valve structures | |
| CA508403A | Valve | |
| CA508404A | Valve | |
| CA508406A | Ball valve |