Stephan Wolff
9Patents
3h-index
27Co-inventors
49Inventor score
Filing activity: Jul 5, 2001 → Apr 3, 2007
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US7004896B2 | Method and arrangement for producing compound filters | Human Necessities | 26 | Expired |
| US7300394B2 | Method and device for producing a filter rod | Human Necessities | 6 | Expired |
| US7175580B2 | Wear indicator for a roller | Human Necessities | 4 | Expired |
| US7261681B2 | Method and apparatus for applying additive to a moving, spread-out filter material web | Human Necessities | 3 | Expired |
| US8172739B2 | Device for combining groups of filter segments for producing multi-segment filters of the tobacco industry, and trough drum | Human Necessities | 3 | Expired |
| US7811220B2 | Device for processing filter tow material, and device for the production of filters | Human Necessities | 2 | Active |
| US6334243B1 | Method of and apparatus for manipulating tows of filter material for tobacco smoke | Human Necessities | 1 | Expired |
| US7318797B2 | Continuous rod machine arrangement for producing nonwoven filters | Human Necessities | 1 | Expired |
| US7588524B2 | Fiber filter production | Human Necessities | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.