| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 7 | |
| #2 | Mexico | 5 | |
| #3 | EPO (European Patent Office) | 4 | |
| #4 | Spain | 4 | |
| #5 | Republic of Korea | 3 | |
| #6 | New Zealand | 3 | |
| #7 | India | 2 | |
| #8 | Canada | 1 | |
| #9 | German Democratic Republic | 1 | |
| #10 | Japan | 1 | |
| #11 | Poland | 1 | |
| #12 | South Africa | 1 |
| # | Industry | |
|---|---|---|
| #1 | Thermal processes | |
| #2 | Mechanical elements | |
| #3 | Machines | |
| #4 | Materials and metallurgy |
| # | Technology | |
|---|---|---|
| #1 | Details of furnaces | |
| #2 | Pipes | |
| #3 | Unspecified technologies | |
| #4 | Building materials | |
| #5 | Steam generation | |
| #6 | Unspecified technologies |
| # | Name | Total Patents |
|---|---|---|
| #1 | Campbell Frank Jr | 11 |
| #2 | Campbell Jr Frank | 9 |
| #3 | Campbell Frank Jun | 3 |
| #4 | Frank Campbell Jr | 2 |
| #5 | Campbell Frankjr | 1 |
| #6 | Klotz Jr Ernest J | 1 |
| #7 | Furanku Kiyanberu Jiyunia | 1 |
| #8 | Campbell Frank Jnr | 1 |
| #9 | Campbell Jun Frank | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US5181319A | Squeeze-on insulation for reheating furnace water cooled skid systems | |
| US5232359A | Device for increasing the thermal radiation heat transfer on an object in a furnace | |
| KR840001330B1 | Truncated triangular insulator | |
| US4304267A | Interlocking refractory for covering a pipe | |
| US4275771A | Interlocking truncated triangular insulator | |
| US4290457A | Truncated triangular insulator | |
| US4253826A | Truncated triangular skid pipe | |
| US4228826A | Interlocking, laminated refractory for covering a pipe |