Volkmar Klein
12Patents
5h-index
10Co-inventors
59Inventor score
Filing activity: May 15, 2002 → Jan 13, 2021
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US7459078B2 | Filter device | Performing Operations; Transporting | 64 | Expired |
| US7181021B2 | Apparatus for acoustically improving an environment | Physics | 15 | Expired |
| US7435347B2 | Filter device and parts thereof and a method for operating of the filter device | Emerging Cross-Sectional Technologies | 7 | Active |
| US7815054B2 | Filter device | Performing Operations; Transporting | 5 | Expired |
| US8944091B2 | System for ventilating and venting containers containing a fluid volume | Emerging Cross-Sectional Technologies | 5 | Active |
| US7464723B2 | Non-return valve | Emerging Cross-Sectional Technologies | 3 | Expired |
| US10150064B2 | Filter apparatus | Performing Operations; Transporting | 2 | Active |
| US10478760B2 | Filter element with a luminescent marker | Performing Operations; Transporting | 1 | Active |
| US12263424B2 | Filter device together with filter element | Performing Operations; Transporting | 0 | Active |
| US10188969B2 | Filter device | Performing Operations; Transporting | 0 | Active |
| US10080982B2 | Arrangement for forming a seal | Emerging Cross-Sectional Technologies | 0 | Active |
| US12109514B2 | Filter device with an element receptacle having two or more degrees of freedom relative to different axes | Performing Operations; Transporting | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.