SPT Co., Ltd.
3Patents
2Active
3Granted
46Portfolio score
Filing activity: Aug 7, 1986 → Aug 3, 2021
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4793162A | Method for repairing failed waterstops and products relating to same | Fixed Constructions | 65 | Expired |
| US12207051B2 | Vibration module for piezoelectric speaker and panel speaker | Electricity | 0 | Active |
| US10189026B2 | System and method for thermal ablation of pigging devices | Mechanical Engineering; Lighting; Heating | 0 | Active |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.