John McCallister
9Patents
6h-index
3Co-inventors
56Inventor score
Filing activity: Sep 29, 1983 → Feb 21, 2023
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4550914A | Golf club head with visual swing-directing cues | Human Necessities | 33 | Expired |
| US4630958A | Attaching coaxially a member or fitting with a bore therethrough to a shaft | Emerging Cross-Sectional Technologies | 26 | Expired |
| US5014992A | Golf putter with swing directing cues | Human Necessities | 23 | Expired |
| US5263717A | Golf club with swing directing ridge | Human Necessities | 13 | Expired |
| USD294619S | Visual aid for golf stroke | General | 12 | Expired |
| USD294616S | Golf club head | General | 7 | Expired |
| US10948044B2 | Fluid circuit device | Mechanical Engineering; Lighting; Heating | 2 | Active |
| US11598387B2 | Method of controlling pressure variation in working fluids in a fluid circuit undergoing working pressure variations | Mechanical Engineering; Lighting; Heating | 1 | Active |
| US12092186B2 | Method of controlling pressure variation in working fluids in a fluid circuit undergoing working pressure variations | Mechanical Engineering; Lighting; Heating | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.