KANKEN TECHNO CO., LTD.
11Patents
6Active
11Granted
44Portfolio score
Filing activity: Nov 29, 1995 → Jan 28, 2022 · 1 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5649985A | Apparatus for removing harmful substances of exhaust gas discharged from semiconductor manufacturing process | Emerging Cross-Sectional Technologies | 49 | Expired |
| US5716428A | Method for removing harmful substances of exhaust gas discharged from semiconductor manufacturing process | Emerging Cross-Sectional Technologies | 18 | Expired |
| US6126906A | Apparatus for removing harmful components in a semiconductor exhaust gas | Emerging Cross-Sectional Technologies | 8 | Expired |
| US6482367B1 | Method and apparatus for removing harmful components in an exhaust gas | Emerging Cross-Sectional Technologies | 2 | Expired |
| US7005117B2 | Method for removing harmful components in an exhaust gas | Emerging Cross-Sectional Technologies | 2 | Expired |
| US10617997B1 | Apparatus for exhaust gas abatement under reduced pressure | Chemistry; Metallurgy | 2 | Active |
| US9937467B2 | Exhaust gas processing device | Emerging Cross-Sectional Technologies | 1 | Active |
| US7976807B2 | Method for detoxifying HCD gas and apparatus therefor | Performing Operations; Transporting | 1 | Active |
| US11504669B2 | Method for exhaust gas abatement under reduced pressure and apparatus therefor | Emerging Cross-Sectional Technologies | 0 | Active |
| US12161964B2 | Cylindrical heating unit and exhaust gas processing device including the cylindrical heating unit | Performing Operations; Transporting | 0 | Active |
| US9120072B2 | Ammonia detoxification device | Emerging Cross-Sectional Technologies | 0 | Active |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.