Volker Hahn
5Patents
3h-index
5Co-inventors
42Inventor score
Filing activity: May 3, 1976 → Feb 28, 1985
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4232822A | Method of and arrangement for correcting the height of railway upper structures | Fixed Constructions | 15 | Expired |
| US4647256A | Method and apparatus for producing underground pipes | Emerging Cross-Sectional Technologies | 13 | Expired |
| US4121398A | Space framework | Fixed Constructions | 6 | Expired |
| US4308933A | Overhead sound attenuating cover for roadways and railways | Fixed Constructions | 3 | Expired |
| US4168915A | Rotary drum | Emerging Cross-Sectional Technologies | 1 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.