David S. Haffner
5Patents
3h-index
5Co-inventors
39Inventor score
Filing activity: Jun 23, 2010 → Jun 4, 2014
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US8327475B2 | Bedding foundation having nestably stackable spring assembly welded to border wire with generally rectangular cross-section | Performing Operations; Transporting | 5 | Active |
| US8332974B2 | Bedding foundation having border wire with generally rectangular cross-section | Performing Operations; Transporting | 5 | Active |
| US8769748B2 | Spring core having border wire with generally rectangular cross-section | Mechanical Engineering; Lighting; Heating | 3 | Active |
| US8490232B2 | Spring core having border wire with generally rectangular cross-section | Human Necessities | 2 | Active |
| US9044102B2 | Spring core having border wire with generally rectangular cross-section | Mechanical Engineering; Lighting; Heating | 2 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.