| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 7 | |
| #2 | Canada | 5 | |
| #3 | United Kingdom | 5 |
| # | Industry | |
|---|---|---|
| #1 | Mechanical elements | |
| #2 | Machines |
| # | Technology | |
|---|---|---|
| #1 | Pipes | |
| #2 | Nails | |
| #3 | Unspecified technologies | |
| #4 | Unspecified technologies | |
| #5 | Pistons and sealings | |
| #6 | Venting or aerating devices |
| # | Name | Total Patents |
|---|---|---|
| #1 | Raybould Frank J | 8 |
| #2 | Raybould Frank James | 4 |
| Publication | Filing date | Title |
|---|---|---|
| US2308542A | Coupling | |
| GB539900A | Improvements in or relating to pipe or rod couplings | |
| US2203237A | Coupling | |
| US2214177A | Coupling and joint formed thereby | |
| US2197384A | Valve | |
| US2205910A | Coupling compression ring | |
| GB478225A | Improvements in or relating to pipe couplings | |
| GB486975A | Improvements in or relating to pipe couplings | |
| US2148038A | Coupling | |
| US2163810A | Coupling | |
| CA381185A | Pipe coupling | |
| CA381186A | Pipe coupling | |
| CA394575A | Pipe coupling | |
| CA405336A | Tube coupling and joint | |
| CA412458A | Tubing coupling |