| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 31 | |
| #2 | Brazil | 12 | |
| #3 | EPO (European Patent Office) | 9 | |
| #4 | Republic of Korea | 9 | |
| #5 | Mexico | 9 | |
| #6 | WIPO (World Intellectual Property Organization) | 7 | |
| #7 | Chile | 5 | |
| #8 | Canada | 4 | |
| #9 | Argentina | 3 | |
| #10 | Philippines | 3 | |
| #11 | Singapore | 3 | |
| #12 | Australia | 2 | |
| #13 | Israel | 2 | |
| #14 | Japan | 2 | |
| #15 | Serbia | 2 | |
| #16 | Hungary | 1 | |
| #17 | Montenegro | 1 | |
| #18 | Taiwan | 1 |
| # | Industry | |
|---|---|---|
| #1 | Chemical engineering | |
| #2 | Materials and metallurgy | |
| #3 | Environmental technology | |
| #4 | Basic materials chemistry | |
| #5 | Control | |
| #6 | Thermal processes |
| # | Name | Total Patents |
|---|---|---|
| #1 | Luo Jing | 80 |
| #2 | Luo Yongying | 39 |
| #3 | Qi Lifang | 37 |
| #4 | Wang Jinyong | 24 |
| #5 | Jing Luo | 21 |
| #6 | Xu Changxiang | 18 |
| #7 | Xu Xiangjun | 16 |
| #8 | Yongying Luo | 12 |
| #9 | Zhang Jun | 12 |
| #10 | Zhang Congzhi | 8 |
| Publication | Filing date | Title |
|---|---|---|
| EP3597286A1 | Acid gas treatment | |
| US2020023310A1 | Acid gas treatment | |
| EP3470132A1 | A method and a device for oxidizing a solution for ammonia desulfurization | |
| EP3421115A2 | Apparatus and method for ammonia-based desulfurization | |
| CL2017001700A1 | System and method for adding ammonia automatically for an ammonia-based desulfurization device. | |
| US2018264402A1 | Method and apparatus for removing sulfur oxides from gas | |
| RS57661B1 | Method and apparatus for treating acidic tail gas by using ammonia process |