Rolf Schwald
7Patents
5h-index
10Co-inventors
60Inventor score
Filing activity: May 28, 1991 → Jun 13, 2019
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5737963A | Ultrasonic transducer | Emerging Cross-Sectional Technologies | 43 | Expired |
| US5866815A | Fill-level indicator | Physics | 27 | Expired |
| US6417748B1 | Filling level measuring device operating with microwaves, having an insert composed of a dielectric, and process for producing the dielectric | Performing Operations; Transporting | 16 | Expired |
| US5363341A | Level measuring device which can be assembled from components | Emerging Cross-Sectional Technologies | 15 | Expired |
| US5778726A | Device for monitoring a predetermined level of a liquid in a container | Emerging Cross-Sectional Technologies | 13 | Expired |
| US6800241B2 | Process for producing dielectric component | Performing Operations; Transporting | 2 | Expired |
| US12298168B2 | Fill level measurement device | Electricity | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.