| Certificate name | Issue date | Issuer |
|---|---|---|
| Reductant injection system for selective reduction reaction. | 2020. 09 | Korean Intellectual Property Office |
| A method for operating a hydrogen refueling station. | 2020. 03 | Korean Intellectual Property Office |
| A method for preparing a nitrogen dioxide conversion catalyst. | 2020. 03 | Korean Intellectual Property Office |
| Re-materialization of spent denitrification catalyst using inorganic acid. | 2018. 08 | Korean Intellectual Property Office |
| Re-materialization of waste denitrification catalyst using organic acid. | 2018. 07 | Korean Intellectual Property Office |
| A method for preparing a denitration catalyst for a selective catalytic reduction reaction. | 2016. 10 | Korean Intellectual Property Office |
| A method for preparing a catalyst for ammonia removal. | 2016. 08 | Korean Intellectual Property Office |
| A method for manufacturing a catalyst module for a selective catalytic reduction reaction. | 2013. 04 | Korean Intellectual Property Office |
| A manufacturing method using a selective denitrification catalyst and a titanium dioxide hydrate slurry. | 2011. 09 | Korean Intellectual Property Office |
| A method for manufacturing a catalyst module for an improved selective catalytic reduction reaction for the removal of nitrogen oxides. | 2008. 11 | Korean Intellectual Property Office |
| Catalyst module element manufacturing apparatus and manufacturing method for selective catalytic reduction reaction. | 2007. 04 | Korean Intellectual Property Office |
| De-Disease Catalyst. | 2007. 01 | Korean Intellectual Property Office |
| A coating composition using a catalyst for a selective catalytic reduction reaction for the removal of nitrogen oxides. | 2006. 06 | Korean Intellectual Property Office |
| A manufacturing method using a selective decontamination source solvent and a titanium dioxide hydrate slurry. | 2016. 08 | Chinese Intellectual Property Office |
| A method for manufacturing a catalyst module. | 2016. 01 | Chinese Intellectual Property Office |
| A method for manufacturing a catalyst module for an improved selective catalytic reduction reaction for the removal of nitrogen oxides. | 2010. 12 | Chinese Intellectual Property Office |
| A method for manufacturing a catalyst module for an improved selective catalytic reduction reaction for the removal of nitrogen oxides. | 2010. 12 | Chinese Intellectual Property Office |