Johnson Propeller Co., Inc.
2Patents
1Active
2Granted
32Portfolio score
Filing activity: Dec 23, 1977 → Sep 14, 2020
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4175605A | Propeller nut | Emerging Cross-Sectional Technologies | 12 | Expired |
| US11655014B2 | Boat shaft seal system | Performing Operations; Transporting | 0 | Active |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.