DAEWOO ENGINEERING & CONSTRUCTION CO., LTD
18Patents
15Active
18Granted
47Portfolio score
Filing activity: Dec 4, 1997 → Nov 28, 2019 · 5 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6807789B1 | Steel-concrete composite beam using asymmetric section steel beam | Fixed Constructions | 13 | Expired |
| US7546656B2 | Method of installing prefabricated, segment concrete filled tube members | Fixed Constructions | 8 | Active |
| US6423657B1 | Process for the reactivation of activated carbon | Emerging Cross-Sectional Technologies | 5 | Expired |
| US6302038A | Anti-erosion system of grate in stoker-type incinerator | Mechanical Engineering; Lighting; Heating | 3 | Expired |
| US11313099B2 | Flexible joint connecting device of precast body segment, precast body segment joining-type underwater tunnel construction method using same, and underwater tunnel constructed thereby | Fixed Constructions | 1 | Active |
| US8486340B2 | Apparatus and method for continuously producing and pelletizing gas hydrates using dual cylinder | Emerging Cross-Sectional Technologies | 1 | Active |
| US8367880B2 | Device and method for continuous hydrate production and dehydration by centrifugal force | Chemistry; Metallurgy | 0 | Active |
| US9302239B2 | Gas-liquid circulating type of hydrate reactor | Performing Operations; Transporting | 0 | Active |
| US9308507B2 | Device for revaporizing natural gas | Mechanical Engineering; Lighting; Heating | 0 | Active |
| US10023821B2 | Method and apparatus for improving heat transfer and reaction efficiency of gas hydrate reactor using scraper | Performing Operations; Transporting | 0 | Active |
| US9839887B2 | Apparatus for storing gas hydrate pellets | Performing Operations; Transporting | 0 | Active |
| US10351790B2 | Apparatus for molding gas hydrate pellets | Chemistry; Metallurgy | 0 | Active |
| US7604733B2 | Apparatus for biological removal of phosphorus and nitrogen using granulated methane-oxidizing bacteria | Emerging Cross-Sectional Technologies | 0 | Active |
| US10179884B2 | Device and method for manufacturing natural gas hydrate | Chemistry; Metallurgy | 0 | Active |
| US8180588B2 | Compensation method for structural deformation occurring during construction of super tall building | Physics | 0 | Active |
| US9255234B2 | Device and method for manufacturing natural gas hydrate | Performing Operations; Transporting | 0 | Active |
| US7520991B2 | Biological method for removing phosphorus and nitrogen from water using granulated methane-oxidizing bacteria | Emerging Cross-Sectional Technologies | 0 | Active |
| US9744508B2 | Apparatus for revaporizing gas hydrate pellets | Performing Operations; Transporting | 0 | Active |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.