Stefan Spengler
4Patents
2h-index
9Co-inventors
41Inventor score
Filing activity: Sep 25, 1995 → Sep 16, 2021
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5636027A | Apparatus for making contactless measurements of the thickness of an object made of transparent material | Physics | 6 | Expired |
| US8999445B2 | Glass or glass-ceramic composite material and method for producing same | Emerging Cross-Sectional Technologies | 2 | Active |
| US9388070B2 | Glass or glass-ceramic composite material and method for producing same | Emerging Cross-Sectional Technologies | 1 | Active |
| US11630550B2 | Method for assigning graphical elements of an operating program for field devices | Physics | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.