Peter David Halstead
5Patents
5h-index
2Co-inventors
45Inventor score
Filing activity: Dec 24, 1990 → Nov 29, 1999
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6226801A | Football helmet having a removable inflatable liner and a method for making the same | Human Necessities | 138 | Expired |
| US6073271A | Football helmet with inflatable liner | Human Necessities | 124 | Expired |
| US5083320A | Protective helmet with self-contained air pump | Human Necessities | 109 | Expired |
| US6178560A | Helmet fitting system | Emerging Cross-Sectional Technologies | 76 | Expired |
| US5381560A | Fitting and retention system for headgear | Human Necessities | 55 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.