John Hay
5Patents
5h-index
6Co-inventors
52Inventor score
Filing activity: Apr 10, 1974 → Jun 11, 1990
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4997461A | Nitrified bonded sol gel sintered aluminous abrasive bodies | Chemistry; Metallurgy | 360 | Expired |
| US4898597A | Frit bonded abrasive wheel | Performing Operations; Transporting | 112 | Expired |
| US5131923A | Vitrified bonded sol gel sintered aluminous abrasive bodies | Chemistry; Metallurgy | 37 | Expired |
| US3932249A | Mesh reinforced elastomeric polymers | Emerging Cross-Sectional Technologies | 20 | Expired |
| US4634453A | Ceramic bonded grinding wheel | Performing Operations; Transporting | 11 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.