| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 6 | |
| #2 | Germany | 3 | |
| #3 | United Kingdom | 3 | |
| #4 | Sweden | 3 | |
| #5 | Australia | 2 |
| # | Industry | |
|---|---|---|
| #1 | Mechanical elements | |
| #2 | Measurement | |
| #3 | Machines |
| # | Technology | |
|---|---|---|
| #1 | Venting or aerating devices | |
| #2 | Unspecified technologies | |
| #3 | Analysing materials | |
| #4 | Servomotors | |
| #5 | Measuring force, work and fluid pressure | |
| #6 | Special measuring | |
| #7 | Pistons and sealings |
| # | Name | Total Patents |
|---|---|---|
| #1 | De Zurik Raymond R | 3 |
| #2 | Peterson Leslie R | 2 |
| #3 | De Zurik R | 2 |
| #4 | Corp De Zurik | 1 |
| #5 | Zurik David De | 1 |
| #6 | Bitzan J | 1 |
| #7 | Roos William Norman | 1 |
| #8 | Ostroot G | 1 |
| #9 | Ostroot Gerald F | 1 |
| #10 | Roos William N | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US3814445A | Seal assembly | |
| GB1365330A | Valve having sealing means for a pivotally mounted closure member | |
| US3656714A | Valve seat retaining means and method of assembly and disassembly | |
| US3517689A | Butterfly valve | |
| US3285058A | Consistency sensing element | |
| US3285057A | Apparatus for obtaining torque measurements | |
| US3285266A | Pneumatic bridge force transducer | |
| GB852347A | Fluid control valves |