Fred Kramer
8Patents
5h-index
9Co-inventors
56Inventor score
Filing activity: Oct 6, 1980 → Mar 31, 2015
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5269624A | Expansion joint system | Fixed Constructions | 26 | Expired |
| US5197250A | Wide expansion joint system | Fixed Constructions | 25 | Expired |
| US4367644A | Adjustable die and key assembly | Performing Operations; Transporting | 21 | Expired |
| US5314372A | Simulated engine with sound generator | Performing Operations; Transporting | 18 | Expired |
| US9951850B2 | Drive assembly for an electric drive | Emerging Cross-Sectional Technologies | 10 | Active |
| US7850567B2 | Differential carrier with an inner plate package | Mechanical Engineering; Lighting; Heating | 4 | Expired |
| US8535194B2 | Coupling assembly and driveline assembly for a motor vehicle with multiple driven axles | Mechanical Engineering; Lighting; Heating | 4 | Active |
| US7252017B2 | Axial adjusting device with multiple ball means | Emerging Cross-Sectional Technologies | 3 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.