John E. Ryan
8Patents
7h-index
9Co-inventors
56Inventor score
Filing activity: Aug 29, 1977 → Aug 25, 1997
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5679249A | Dynamic filter system | Performing Operations; Transporting | 78 | Expired |
| US4269534A | Replaceable guide post | Fixed Constructions | 47 | Expired |
| US4341488A | Guidepost for parking vehicles | Fixed Constructions | 32 | Expired |
| US6106713A | Dynamic filter system | Performing Operations; Transporting | 31 | Expired |
| US4123183A | Guidepost for roadways and the like | Fixed Constructions | 21 | Expired |
| US5871645A | Filter arrangement including a non-perforated housing and an axially pleated filter pack | Performing Operations; Transporting | 16 | Expired |
| US5647950A | Filter assembly with a spin welded end cap | Performing Operations; Transporting | 8 | Expired |
| US5404782A | Bakery product slicing machine | Emerging Cross-Sectional Technologies | 6 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.