| # | Country | Total Patents | |
|---|---|---|---|
| #1 | China | 10 | |
| #2 | Norway | 3 | |
| #3 | Egypt | 2 | |
| #4 | United States | 1 |
| # | Industry | |
|---|---|---|
| #1 | Materials and metallurgy | |
| #2 | Mechanical elements | |
| #3 | Chemical engineering | |
| #4 | Measurement | |
| #5 | Machine tools | |
| #6 | Basic materials chemistry | |
| #7 | Machines | |
| #8 | Civil engineering |
| # | Technology | |
|---|---|---|
| #1 | Alloys | |
| #2 | Liquefaction of gases by pressure | |
| #3 | Metal tempering | |
| #4 | Compressed gas holders | |
| #5 | Soldering, welding and flame cutting | |
| #6 | Geophysics | |
| #7 | Pipe-line systems | |
| #8 | Unspecified technologies | |
| #9 | Fuels | |
| #10 | Earth drilling |
| # | Name | Total Patents |
|---|---|---|
| #1 | Hawrysz Daniel | 2 |
| #2 | Cole E T | 2 |
| #3 | Luton M J | 2 |
| #4 | Koo J | 2 |
| #5 | Bowen R R | 2 |
| #6 | Stone John B | 2 |
| #7 | Minta M | 2 |
| #8 | Gulati K C | 1 |
| #9 | Bowen Ronald R | 1 |
| #10 | Faulkner Barbara L | 1 |