| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 8 | |
| #2 | Canada | 3 |
| # | Industry | |
|---|---|---|
| #1 | Machine tools | |
| #2 | Mechanical elements | |
| #3 | Packaging and shipping | |
| #4 | Machines |
| # | Technology | |
|---|---|---|
| #1 | Making metal sheets | |
| #2 | Pipes | |
| #3 | Containers for goods storage | |
| #4 | Soldering, welding and flame cutting | |
| #5 | Unspecified technologies | |
| #6 | Pistons and sealings |
| # | Name | Total Patents |
|---|---|---|
| #1 | Naylor Carl G | 10 |
| #2 | Lathrope Franklin C | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US2423986A | Nesting pipe | |
| US2264581A | Pipe coupling | |
| US1976797A | Pipe coupling and a method of producing the same | |
| US1943035A | Method of producing tubing or pipe | |
| US1906010A | Pipe and method of making the same | |
| US1906011A | Tubing or pipe | |
| US1841974A | Closure device | |
| US1915029A | Apparatus for producing pipe | |
| CA324171A | Pipe-making apparatus | |
| CA331686A | Metal ribbon pipe | |
| CA331685A | Metal ribbon pipe |