Sartorius AG
225Patents
25Active
225Granted
44Portfolio score
Filing activity: Jan 23, 1979 → Jun 12, 2009 · 25 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US7048775B2 | Device and method for monitoring the integrity of filtering installations | Performing Operations; Transporting | 275 | Expired |
| US5468388A | Filter module with degassing feature | Performing Operations; Transporting | 219 | Expired |
| US4969997A | Fluid-impermeable areas on porous membrane filters and their application | Performing Operations; Transporting | 65 | Expired |
| US4522713A | Apparatus for static membrane filtration | Performing Operations; Transporting | 62 | Expired |
| US4758337A | Filter for filtering human blood, especially in an extracorporeal circulatory system | Performing Operations; Transporting | 55 | Expired |
| US4909937A | Integral filters for separating fluid components and housing for them | Performing Operations; Transporting | 54 | Expired |
| US6808375B2 | Expanded porous thermoplastic polymer membranes and device for the production thereof | Emerging Cross-Sectional Technologies | 52 | Expired |
| US4678578A | Flat filter element for the filtration of fluids | Performing Operations; Transporting | 49 | Expired |
| US4430218A | Separating device for fluids, consisting of support plates and cut sections of a semi-permeable diaphragm | Physics | 46 | Expired |
| US6294090A | Adsorptive substance separation device | Physics | 45 | Expired |
| US6959812B2 | Filter package | Performing Operations; Transporting | 44 | Expired |
| US6929743B2 | Device and assembly for cross-flow filtration | Performing Operations; Transporting | 39 | Expired |
| US6623631B1 | Filter assembly for vacuum filtration | Performing Operations; Transporting | 38 | Expired |
| US5547575A | Method for the surface modification of formed bodies and formed bodies produced thereby | Chemistry; Metallurgy | 37 | Expired |
| US6951613B2 | Genetic vaccination device and process for forming an injection therefor | Human Necessities | 37 | Expired |
| US6368505B1 | Cross-flow filter cartridge | Performing Operations; Transporting | 36 | Expired |
| US6143174A | Filtration unit with pleated filtering elements | Performing Operations; Transporting | 33 | Expired |
| USD458859S1 | Electronic balance with generally columnar windscreen | General | 33 | Expired |
| USD458553S1 | Electronic balance with generally square tray | General | 33 | Expired |
| US4529397A | Cardioplegic controlling and regulating system | Human Necessities | 32 | Expired |
| US4991973A | Electronic balance with scale on top | Physics | 32 | Expired |
| US4490256A | Apparatus for static membrane filtration | Performing Operations; Transporting | 31 | Expired |
| US6191371A | Electronic formula processing scale | Physics | 29 | Expired |
| US4798250A | Balance with wind guard | Physics | 29 | Expired |
| US6579445B2 | System for the production of laboratory grade ultrapure water | Emerging Cross-Sectional Technologies | 28 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.