Erhard Schreiber
4Patents
0Active
4Granted
25Portfolio score
Filing activity: Jan 23, 1991 → Oct 30, 1991
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5098561A | Machine for intercepting solid constituents in liquid streams | Fixed Constructions | 17 | Expired |
| US5304301A | Apparatus for the injection of compressed air into a liquid | Emerging Cross-Sectional Technologies | 3 | Expired |
| US5234632A | Aeration apparatus for liquid | Emerging Cross-Sectional Technologies | 3 | Expired |
| US5271832A | Activation plant with funnel-shaped secondary sedimentation | Emerging Cross-Sectional Technologies | 0 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.