Devices Development Corporation
2Patents
0Active
2Granted
21Portfolio score
Filing activity: Nov 14, 1975 → Jul 22, 1980
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4320380A | Electronically controlled safety mechanism for highway exit ramp | Physics | 15 | Expired |
| US4133140A | Safety mechanism for highway exit ramp | Physics | 6 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.