Gerd Schaefer
7Patents
4h-index
7Co-inventors
50Inventor score
Filing activity: Sep 18, 1980 → Jan 27, 2009
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4413788A | Device for the feeding of enamel to an electrostatic paint emitter | Performing Operations; Transporting | 20 | Expired |
| US5647417A | Long-timber chipping machine | Performing Operations; Transporting | 4 | Expired |
| US7524996B2 | Method for the separation of polymeric by-products from 1,4-butynediol | Chemistry; Metallurgy | 4 | Active |
| US7572941B2 | Method for the separation of polymeric by-products from 1,4-butynediol | Chemistry; Metallurgy | 4 | Active |
| US7605292B2 | Method for the separation of polymeric by-products from 1,4-butynediol | Chemistry; Metallurgy | 4 | Active |
| US7538254B2 | Method for the separation of polymeric by-products from 1,4-butynediol | Chemistry; Metallurgy | 4 | Active |
| US5074945A | Process and device for producing a coherent web from long slivers | Emerging Cross-Sectional Technologies | 2 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.