Pharma-Tech Co., Ltd.
3Patents
2Active
3Granted
37Portfolio score
Filing activity: Nov 15, 1996 → Mar 19, 2008 · 2 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5928986A | Method for activating a woven or non-woven textile sheet of continuous carbonized filaments or spun carbonized yarn | Mechanical Engineering; Lighting; Heating | 4 | Expired |
| US8365432B2 | Freeze-drying method and freeze-drying apparatus | Mechanical Engineering; Lighting; Heating | 3 | Active |
| US7942173B2 | Powder filling device | Performing Operations; Transporting | 2 | Active |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.