| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 5 | |
| #2 | Canada | 4 | |
| #3 | Germany | 4 | |
| #4 | United Kingdom | 4 | |
| #5 | Sweden | 4 | |
| #6 | France | 1 |
| # | Industry | |
|---|---|---|
| #1 | Mechanical elements | |
| #2 | Machines |
| # | Technology | |
|---|---|---|
| #1 | Pipes | |
| #2 | Unspecified technologies | |
| #3 | Venting or aerating devices | |
| #4 | Nails |
| # | Name | Total Patents |
|---|---|---|
| #1 | Graham Charles H | 9 |
| #2 | Graham C | 4 |
| #3 | H Graham Charles | 3 |
| #4 | Graham Charles Harold | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US3523701A | Coupling unit | |
| US3538940A | Fitting assembly | |
| US3563265A | Ball valve assembly | |
| US3512808A | Fluid coupling assembly | |
| US3560027A | Coupling assembly | |
| FR1468174A | Connection structure for components containing fluid | |
| DE1525454A1 | PIPE OR HOSE COUPLING | |
| GB1128356A | Improvements in fluid coupling assemblies | |
| CA884766A | Coupling unit | |
| CA870479A | Fluid coupling assembly | |
| CA887992A | Ball valve assembly | |
| CA791010A | Fluid coupling assembly |