Bernd Schopper
26Patents
6h-index
11Co-inventors
62Inventor score
Filing activity: Jun 29, 1977 → Apr 21, 1994
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5213482A | Hydraulic radial-type piston pump | Mechanical Engineering; Lighting; Heating | 42 | Expired |
| US5370450A | Brake pressure control apparatus | Emerging Cross-Sectional Technologies | 14 | Expired |
| US5333945A | Brake pressure control apparatus | Emerging Cross-Sectional Technologies | 10 | Expired |
| US4332423A | Two-circuit pressure control unit | Performing Operations; Transporting | 8 | Expired |
| US4422694A | Braking pressure control unit for a hydraulic brake system | Performing Operations; Transporting | 7 | Expired |
| US4311345A | Two-circuit pressure regulator | Performing Operations; Transporting | 6 | Expired |
| US4415209A | An integral wheel brake cylinder and pressure regulating valve | Performing Operations; Transporting | 5 | Expired |
| US4227746A | Braking pressure control unit for a dual circuit brake system | Emerging Cross-Sectional Technologies | 5 | Expired |
| US4639048A | Process and apparatus for brake pressure control | Performing Operations; Transporting | 4 | Expired |
| US4427239A | Dual-circuit pressure control valve | Performing Operations; Transporting | 4 | Expired |
| US5302011A | Braking pressure control device for a hydraulic automotive vehicle brake system | Mechanical Engineering; Lighting; Heating | 4 | Expired |
| US4472941A | Tandem brake master cylinder | Performing Operations; Transporting | 4 | Expired |
| US4375304A | Dual-circuit pressure control valves | Emerging Cross-Sectional Technologies | 4 | Expired |
| US4365846A | Dual-circuit pressure control valve for hydraulic brake systems | Performing Operations; Transporting | 3 | Expired |
| US4915457A | Load-sensitively controllable braking pressure control unit | Performing Operations; Transporting | 3 | Expired |
| US4325407A | Pressure control unit | Emerging Cross-Sectional Technologies | 3 | Expired |
| US4488742A | Connecting arrangement, especially for tubular elements | Mechanical Engineering; Lighting; Heating | 2 | Expired |
| US4392511A | Pressure regulator | Emerging Cross-Sectional Technologies | 1 | Expired |
| US4377176A | Pressure reducer for hydraulic brake systems | Emerging Cross-Sectional Technologies | 1 | Expired |
| US4109967A | Brake-force distributor for dual-circuit brake systems | Emerging Cross-Sectional Technologies | 1 | Expired |
| US4354712A | Dual-circuit pressure control valve for hydraulic brake systems | Performing Operations; Transporting | 1 | Expired |
| US4392691A | Dual-circuit pressure control valves | Performing Operations; Transporting | 1 | Expired |
| US4659151A | Braking pressure control unit for a dual-circuit vehicle brake system actuatable by pressure fluid | Performing Operations; Transporting | 1 | Expired |
| US4351571A | Dual-circuit pressure control valves for brake systems | Performing Operations; Transporting | 0 | Expired |
| US4361361A | Dual-circuit pressure control valve for hydraulic brake systems | Performing Operations; Transporting | 0 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.