Horst Krämer
40Patents
7h-index
66Co-inventors
72Inventor score
Filing activity: Sep 3, 1974 → Jun 17, 2020
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5792399A | Formed shape made of regenerated cellulose and process for its production | Chemistry; Metallurgy | 32 | Expired |
| US5460074A | Vacuum brake power booster | Performing Operations; Transporting | 23 | Expired |
| US5605088A | Vacuum brake power booster | Performing Operations; Transporting | 19 | Expired |
| US6808238B2 | Operating unit for an electrohydraulic braking system | Performing Operations; Transporting | 17 | Expired |
| US9079570B2 | “Brake-by-wire” type brake system | Performing Operations; Transporting | 9 | Active |
| US6318815A | Braking force boosting device, in particular for automotive vehicles | Emerging Cross-Sectional Technologies | 8 | Expired |
| US4663537A | Protective circuit | Electricity | 8 | Expired |
| US6775979B1 | Actuation device for an electrohydraulic braking system | Performing Operations; Transporting | 5 | Expired |
| US6209967A | Pneumatic brake power booster with control housing having an electromagnetically operable control valve | Performing Operations; Transporting | 4 | Expired |
| US9969373B2 | Master brake cylinder for a hydraulic motor vehicle brake system | Performing Operations; Transporting | 4 | Active |
| US6070514A | Pneumatic brake booster | Performing Operations; Transporting | 4 | Expired |
| US4310290A | Radial piston pump | Mechanical Engineering; Lighting; Heating | 4 | Expired |
| US4348351A | Method for producing neutron doped silicon having controlled dopant variation | Electricity | 4 | Expired |
| US5231121A | Natural fiber containing molding compounds based on unsaturated polyester resins, and molded bodies obtained from the molding compounds | Chemistry; Metallurgy | 3 | Expired |
| US4257841A | Stabilizing and supporting apparatus for float zone refined semiconductor crystal rod | Emerging Cross-Sectional Technologies | 3 | Expired |
| US6516701B1 | Brake power booster and a method for controlling the same | Performing Operations; Transporting | 2 | Expired |
| US4412176A | Testing method for determining the magnetic properties of ferromagnetic powders | Physics | 2 | Expired |
| US6053090A | Vacuum brake power booster | Performing Operations; Transporting | 2 | Expired |
| US10131334B2 | Brake fluid container | Performing Operations; Transporting | 1 | Active |
| US8231182B2 | Method for creating low pressure in a brake activation device of a motor vehicle brake system | Performing Operations; Transporting | 1 | Active |
| US6367364B1 | Power assisted brake for motor vehicles | Performing Operations; Transporting | 1 | Expired |
| US11247650B2 | Brake device for a hydraulic motor vehicle brake system | Performing Operations; Transporting | 1 | Active |
| US4257750A | Radial piston pump | Mechanical Engineering; Lighting; Heating | 1 | Expired |
| US7950320B2 | Brake booster for motor vehicles | Performing Operations; Transporting | 1 | Active |
| US7634960B2 | Pneumatic brake booster | Performing Operations; Transporting | 1 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.