Intellectual property protection
| Serial number | Patent name | Application number / authorization number | Authorization time | Patentee |
| 1 | Method for synthesizing sodium thiocyanate | ZL200910137548.X | 2011.1.5 | Jiangsu Liaoyuan Environmental Protection |
| 2 | Fishing net antifouling agent and preparation method | ZL201010162111.4 | 2013.1.9 | Jiangsu Liaoyuan Environmental Protection |
| 3 | Method for recovering thiocyanate by using desulfurization and cyanide waste water of coke oven gas | ZL201110240780.3 | 2013.6.12 | Jiangsu Liaoyuan Environmental Protection |
| 4 | Synthesizing Method and application method of a chelating precipitant | ZL201310301171.3 | 2015.1.28 | Zhangjiagang Liaoyuan Environmental Protection |
| 5 | Thiocyanate multi-effect distillation concentrating device with filter | ZL201420105415.0 | 2014.7.30 | Jiangsu Liaoyuan Environmental Protection |
| 6 | Method for preparing high quality sodium thiocyanate by using desulfurization and cyanide waste liquid of coke oven gas | ZL201310301170.9 | 2016.3.30 | Jiangsu Liaoyuan Environmental Protection |
| 7 | Method for preparing high quality potassium thiocyanate by using desulfurization and cyanide waste liquid of coke oven gas | ZL201310301182.1 | 2015.7.15 | Jiangsu Liaoyuan Environmental Protection |
| 8 | Method for refining thiocyanate by combined membrane method | ZL201410084853.8 | 2015.12.2 | Jiangsu Liaoyuan Environmental Protection, Zhangjiagang Liaoyuan Environmental Protection |
| 9 | Method for producing ammonium thiocyanate from waste liquid recovered crude ammonium thiocyanate | ZL201410084846.8 | 2016.5.4 | Jiangsu Liaoyuan Environmental Protection |
| 10 | Thiocyanate solid-liquid separation device | ZL201820350261.X | 2018.11.23 | Jiangsu Liaoyuan Environmental Protection |
| 11 | Continuous rinsing sodium thiocyanate crystal device | ZL201820366715.2 | 2018.10.9 | Jiangsu Liaoyuan Environmental Protection |
| 12 | Continuous growing device of Thiocyanate crystal | ZL201820350327.5 | 2018.11.2 | Jiangsu Liaoyuan Environmental Protection |
| 13 | Continuous cooling device of sodium thiocyanate crystal | ZL201820366736.4 | 2018.11.6 | Jiangsu Liaoyuan Environmental Protection |