Nerthus, Inc.
1Patents
0Active
1Granted
15Portfolio score
Filing activity: Apr 4, 1975 → Apr 4, 1975
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| USD244483S | Optical refraction testing instrument | General | 4 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.