| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Argentina | 2 | |
| #2 | Brazil | 1 | |
| #3 | Canada | 1 | |
| #4 | China | 1 | |
| #5 | Ecuador | 1 | |
| #6 | Egypt | 1 | |
| #7 | EPO (European Patent Office) | 1 | |
| #8 | Japan | 1 | |
| #9 | Republic of Korea | 1 | |
| #10 | Morocco | 1 | |
| #11 | Mexico | 1 | |
| #12 | Tunisia | 1 | |
| #13 | WIPO (World Intellectual Property Organization) | 1 |
| # | Industry | |
|---|---|---|
| #1 | Machines | |
| #2 | Mechanical elements |
| # | Technology | |
|---|---|---|
| #1 | Pipes | |
| #2 | Unspecified technologies | |
| #3 | Shaping clay | |
| #4 | Unspecified technologies |
| # | Name | Total Patents |
|---|---|---|
| #1 | Kubat Paul | 13 |
| #2 | Sheng Qizhong | 13 |
| #3 | Friedrich Ralph S | 12 |
| #4 | Friedrich Ralph | 1 |
| Publication | Filing date | Title |
|---|---|---|
| TN2010000446A1 | Pressure cast concrete or mortar lined steel pipes and methods of making the same | |
| CN102046342A | Pressure cast concrete or mortar lined steel pipes and methods of making the same |