| # | Country | Total Patents | |
|---|---|---|---|
| #1 | South Africa | 2 | |
| #2 | Argentina | 1 | |
| #3 | Australia | 1 | |
| #4 | Belgium | 1 | |
| #5 | Brazil | 1 | |
| #6 | Canada | 1 | |
| #7 | Germany | 1 | |
| #8 | EPO (European Patent Office) | 1 | |
| #9 | France | 1 | |
| #10 | United Kingdom | 1 | |
| #11 | Netherlands | 1 |
| # | Industry | |
|---|---|---|
| #1 | Mechanical elements | |
| #2 | Machine tools |
| # | Technology | |
|---|---|---|
| #1 | Pipes | |
| #2 | Punching metal |
| # | Name | Total Patents |
|---|---|---|
| #1 | Butler Major Gene | 3 |
| #2 | Butler M | 2 |
| #3 | Butler Major G | 1 |
| #4 | Major Gene Butler | 1 |
| Publication | Filing date | Title |
|---|---|---|
| ZA8104263B | Mechanical pipe joint and method of forming the same | |
| CA1182146A | Mechanical pipe joint and method of forming the same | |
| NL7803485A | Pipe joint for petroleum industry - uses liq. adhesive to seal gap between mating tapered surfaces | |
| DE2808655A1 | Pipe joint for petroleum industry - uses liq. adhesive to seal gap between mating tapered surfaces | |
| ZA7801014B | A method of making a taper pipe joint |