Walter Hoffmann
10Patents
4h-index
17Co-inventors
57Inventor score
Filing activity: Mar 24, 1980 → Apr 8, 2016
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US7849399B2 | Method and system for tracking authorship of content in data | Physics | 8 | Active |
| US4326434A | Process for underlaying a flat-bed steel rule die | Performing Operations; Transporting | 7 | Expired |
| US5943459A | Optical coupling arrangement | Physics | 5 | Expired |
| US8294405B2 | Method and device for guiding the movement of a moving machine element on a numerically controlled machine | Physics | 5 | Active |
| US8060239B2 | Method for the determination of a rough trajectory to be followed in a positionally guided manner | Physics | 4 | Active |
| US10723591B2 | Guide rail for an elevator system | Performing Operations; Transporting | 3 | Active |
| US10450165B2 | Elevator with a braking device | Performing Operations; Transporting | 1 | Active |
| US10093516B2 | Elevator having a braking device | Mechanical Engineering; Lighting; Heating | 0 | Active |
| US10773924B2 | Guide rail for an elevator system and an elevator system | Performing Operations; Transporting | 0 | Active |
| US10322909B2 | Car door | Fixed Constructions | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.