CHEMICAL GROUTING CO., LTD.
14Patents
2Active
14Granted
32Portfolio score
Filing activity: Oct 23, 1989 → Apr 22, 2015
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5006017A | Method for improving ground of large section area | Fixed Constructions | 10 | Expired |
| US5123782A | Method of improving ground of large area | Fixed Constructions | 8 | Expired |
| US5399056A | Method for controlling a final pile diameter in a cast-in-place of solidification pile | Fixed Constructions | 8 | Expired |
| US5462672A | Process for treating sludge and system for the same | Chemistry; Metallurgy | 6 | Expired |
| US5160220A | Method of improving ground of large area | Fixed Constructions | 5 | Expired |
| US5575345A | Multi shaft drilling unit | Fixed Constructions | 4 | Expired |
| US5624550A | Process for treating sludge and system for the same | Chemistry; Metallurgy | 3 | Expired |
| US5435668A | Method for controlling a final pile diameter in a cast-in-place of solidification pile by a jet process | Fixed Constructions | 3 | Expired |
| US7120565B1 | Method and apparatus for determining figure | Fixed Constructions | 2 | Expired |
| US5797465A | Multi-shaft drilling unit | Fixed Constructions | 2 | Expired |
| US5050320A | Multi-shaft kneading auger system | Fixed Constructions | 1 | Expired |
| US5123783A | Method of reusing slurry | Fixed Constructions | 1 | Expired |
| US10261004B2 | Determining device and determining method | Physics | 1 | Active |
| US10221537B2 | Artificial ground freezing method and artificial ground freezing system | Fixed Constructions | 0 | Active |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.