David Spiers
1Patents
1Active
1Granted
39Portfolio score
Filing activity: Nov 2, 2006 → Nov 2, 2006 · 1 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US7458138B2 | Grave lining system | Fixed Constructions | 5 | Active |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.