L. Engineering Co. Ltd.
1Patents
0Active
1Granted
21Portfolio score
Filing activity: Mar 2, 1994 → Mar 2, 1994
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5428279A | Safety apparatus determining whether a detected presence is a work piece or a human | Mechanical Engineering; Lighting; Heating | 6 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.