Philip Ian Ward
4Patents
4h-index
2Co-inventors
33Inventor score
Filing activity: May 19, 1999 → Jul 24, 2002
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6435538B1 | Stair chair | Emerging Cross-Sectional Technologies | 48 | Expired |
| US6219864A | Monitoring patient handling equipment | Human Necessities | 22 | Expired |
| US6644675B2 | Stair chair | Emerging Cross-Sectional Technologies | 19 | Expired |
| USD430078S | Fabric chair with three stair climbing wheels | General | 13 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.