HYUNDAI ENGINEERING CO., LTD.
11Patents
8Active
11Granted
43Portfolio score
Filing activity: May 15, 1991 → Nov 1, 2013 · 5 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5143618A | Process for the treatment of organic wastewater | Emerging Cross-Sectional Technologies | 7 | Expired |
| US5843305A | Sewage and wastewater treatment plant using anaerobic and aerobic microorganisms | Emerging Cross-Sectional Technologies | 7 | Expired |
| US8598066B2 | Preparing phosphorus containing alumina support by sol-gel method for fischer-tropsch synthesis and catalyst preparation thereof | Performing Operations; Transporting | 5 | Active |
| US6123747A | Apparatus and method for manufacturing barnyard manure using sewage and sludge | Emerging Cross-Sectional Technologies | 3 | Expired |
| US8183301B2 | Preparation methods for liquid hydrocarbons by Fischer-Tropsch synthesis through slurry reaction | Chemistry; Metallurgy | 1 | Active |
| US8486340B2 | Apparatus and method for continuously producing and pelletizing gas hydrates using dual cylinder | Emerging Cross-Sectional Technologies | 1 | Active |
| US9308507B2 | Device for revaporizing natural gas | Mechanical Engineering; Lighting; Heating | 0 | Active |
| US8852516B2 | Method and apparatus for the continuous separation and discharge of solid catalysts and products for Fischer-Tropsch synthesis reactions | Chemistry; Metallurgy | 0 | Active |
| US9255234B2 | Device and method for manufacturing natural gas hydrate | Performing Operations; Transporting | 0 | Active |
| US8367880B2 | Device and method for continuous hydrate production and dehydration by centrifugal force | Chemistry; Metallurgy | 0 | Active |
| US9649623B2 | Preparing phosphorus containing alumina support by sol-gel method for Fischer-Tropsch synthesis and catalyst preparation thereof | Performing Operations; Transporting | 0 | Active |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.