DHR, Incorporated
1Patents
0Active
1Granted
25Portfolio score
Filing activity: Jul 31, 1984 → Jul 31, 1984
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4539625A | Lighting system combining daylight concentrators and an artificial source | Mechanical Engineering; Lighting; Heating | 88 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.