John R. Grayson
6Patents
4h-index
1Co-inventors
43Inventor score
Filing activity: Sep 13, 1982 → Jul 27, 1998
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5082557A | Control head for water purifier | Emerging Cross-Sectional Technologies | 35 | Expired |
| US4482456A | Reverse osmosis liquid treating apparatus | Performing Operations; Transporting | 22 | Expired |
| US6129836A | Two-chamber fluid control valve and water softener incorporating same | Emerging Cross-Sectional Technologies | 9 | Expired |
| USD371186S | Container for brine and water treatment system | General | 7 | Expired |
| US5645105A | Tank-filling shut-off valve | Emerging Cross-Sectional Technologies | 2 | Expired |
| US6193882A | Pressurized brining system | Emerging Cross-Sectional Technologies | 1 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.