Centrilift-Hughes, Inc.
3Patents
0Active
3Granted
25Portfolio score
Filing activity: Oct 17, 1977 → Nov 21, 1979
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4330306A | Gas-liquid separator | Mechanical Engineering; Lighting; Heating | 37 | Expired |
| US4330740A | Energizing circuit for providing low voltage starting for submersible pump motor | Electricity | 13 | Expired |
| US4275938A | Tandem thrust bearing | Mechanical Engineering; Lighting; Heating | 4 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.