| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United Kingdom | 9 | |
| #2 | Germany | 7 | |
| #3 | France | 6 | |
| #4 | United States | 3 |
| # | Industry | |
|---|---|---|
| #1 | Mechanical elements | |
| #2 | Machines | |
| #3 | Measurement | |
| #4 | Packaging and shipping | |
| #5 | Machine tools | |
| #6 | Control |
| # | Name | Total Patents |
|---|---|---|
| #1 | Louis Ripert Roger | 1 |
| #2 | Underwood Bryant Austin | 1 |
| #3 | Edwarde Leo Keshish | 1 |
| #4 | Connolly Walter L | 1 |
| #5 | Anderson John Andrew | 1 |
| #6 | Christopher Gerbic Charles | 1 |
| #7 | Chambers James F | 1 |
| #8 | Ray Harold T | 1 |
| #9 | Craven Milton H | 1 |
| #10 | Bryant Austin U | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US5259590A | Valve seat for high temperature valve | |
| US4545231A | Method of manufacturing a weld neck flange | |
| GB1096097A | Improvements in or relating to the construction of fluid flow control valves | |
| GB1130930A | Fluid control valve construction | |
| GB1035579A | Improvements in or relating to fluid-flow control valves | |
| GB778373A | Welding apparatus | |
| US2777937A | Welding apparatus |