John Arthur Calder
3Patents
1h-index
6Co-inventors
41Inventor score
Filing activity: Dec 12, 1977 → Nov 20, 2023
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4126765A | Detector circuit for sensing battery polarity and loop closure | Electricity | 13 | Expired |
| US12359540B2 | Overpressure valve system for a subsea manifold | Mechanical Engineering; Lighting; Heating | 0 | Active |
| US10265175B2 | Implant with improved surface properties | Human Necessities | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.