Lambda Co., Ltd.
3Patents
0Active
3Granted
27Portfolio score
Filing activity: Sep 19, 1983 → Jun 9, 2000
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6781136B1 | Negative ion emitting method and apparatus therefor | Electricity | 26 | Expired |
| US4564487A | Method and apparatus for making a continuous length of tubing having foamed plastic walls | Performing Operations; Transporting | 16 | Expired |
| US5832788A | Kinetic energy multiplier with driving unit | Emerging Cross-Sectional Technologies | 1 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.