Peter J. Piotrowski
9Patents
7h-index
17Co-inventors
60Inventor score
Filing activity: Sep 14, 1977 → Nov 9, 1999
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6129353A | Method of displaying video images projected from a video display of a pinball machine | Human Necessities | 126 | Expired |
| US6120021A | Lock-down bar release system for a pinball machine | Human Necessities | 122 | Expired |
| US5697612A | Jet bumper for a pinball game | Human Necessities | 121 | Expired |
| US4165874A | Golf club shaft and set of golf clubs | Human Necessities | 72 | Expired |
| USD318512S | Golf club head | General | 42 | Expired |
| US6491778B1 | Bent tip composite golf shaft | Performing Operations; Transporting | 12 | Expired |
| US5913516A | Multimode target with variable trajectory ball ramp | Human Necessities | 7 | Expired |
| US5536082A | Game playfield mounting system | Human Necessities | 6 | Expired |
| US5915693A | Jump rope play feature for a pinball game | Human Necessities | 3 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.