David B. Speer
2Patents
2h-index
3Co-inventors
37Inventor score
Filing activity: May 8, 1987 → May 8, 2003
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4759672A | Fastener head with stabilizing ring | Mechanical Engineering; Lighting; Heating | 114 | Expired |
| US6872042B2 | Knurled fastener with cutting edges and removable head | Emerging Cross-Sectional Technologies | 10 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.