D. Bruce Fetterman
11Patents
10h-index
7Co-inventors
61Inventor score
Filing activity: Jan 8, 1993 → Jun 15, 2010
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US7051661B2 | Railcar with discharge control system | Performing Operations; Transporting | 90 | Expired |
| US7891304B2 | Railcar with discharge control system | Performing Operations; Transporting | 77 | Active |
| US7735426B2 | Hopper cars with one or more discharge control systems | Performing Operations; Transporting | 24 | Active |
| US5562046A | Load bearing crossbearer connection | Performing Operations; Transporting | 16 | Expired |
| US5341747A | Railway gondola car | Performing Operations; Transporting | 15 | Expired |
| US8915194B2 | Hopper cars with one or more discharge control systems | Performing Operations; Transporting | 14 | Active |
| US7681507B2 | Railcar with discharge control system | Performing Operations; Transporting | 10 | Expired |
| US7210413B2 | Universal boxcar | Emerging Cross-Sectional Technologies | 10 | Expired |
| US7305923B2 | Universal boxcar with exterior metal surfaces | Emerging Cross-Sectional Technologies | 10 | Expired |
| US7004080B2 | Boxcar with load restraint system | Emerging Cross-Sectional Technologies | 10 | Expired |
| US7261044B2 | Boxcar with load restraint system | Emerging Cross-Sectional Technologies | 10 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.