Alfa Laval Separation A/S
57Patents
0Active
57Granted
37Portfolio score
Filing activity: Jan 8, 1979 → Sep 15, 1998
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4298162A | Decanter centrifuge | Performing Operations; Transporting | 46 | Expired |
| US5202024A | Centrifugal separator | Performing Operations; Transporting | 43 | Expired |
| US4820256A | Centrifugal separator | Performing Operations; Transporting | 43 | Expired |
| US5615776A | Mounting & tensioning arrangements for screens | Performing Operations; Transporting | 39 | Expired |
| US4629564A | Centrifugal separator with annular sealing means arranged around the rotor outlet for separated liquid | Performing Operations; Transporting | 37 | Expired |
| US4813923A | Centrifugal separator | Performing Operations; Transporting | 35 | Expired |
| US4950401A | Centrifugal separator | Performing Operations; Transporting | 34 | Expired |
| US5896998A | Vibratory screening apparatus | Performing Operations; Transporting | 32 | Expired |
| US5374234A | Decanter centrifuge with energy dissipating inlet | Performing Operations; Transporting | 31 | Expired |
| US4778444A | Rotatable supply and discharge conduit of a centrifugal separator | Performing Operations; Transporting | 29 | Expired |
| US4729759A | Centrifugal separator arranged for discharge of a separated product with a predetermined concentration | Performing Operations; Transporting | 28 | Expired |
| US4519496A | Conveyor screw with wear-resistant members attached to its operative surface | Performing Operations; Transporting | 28 | Expired |
| US4504262A | Decanter centrifuge | Mechanical Engineering; Lighting; Heating | 27 | Expired |
| US5052996A | Centrifugal separator | Performing Operations; Transporting | 24 | Expired |
| US4861329A | Centrifugal separator | Performing Operations; Transporting | 24 | Expired |
| US4925442A | Operating system for centrifugal separator | Performing Operations; Transporting | 23 | Expired |
| US4701158A | Centrifugal separator | Emerging Cross-Sectional Technologies | 23 | Expired |
| US5362292A | Centrifugal separator | Performing Operations; Transporting | 22 | Expired |
| US4721505A | Centrifugal separator | Emerging Cross-Sectional Technologies | 21 | Expired |
| US5045049A | Centrifugal separator | Performing Operations; Transporting | 20 | Expired |
| US5720705A | Method for freeing a liquid from a substance dispersed therein and having a larger density than the liquid | Performing Operations; Transporting | 20 | Expired |
| US4698053A | Centrifugal separator | Performing Operations; Transporting | 19 | Expired |
| US4654023A | Mechanical seal for casing of centrifugal separators | Mechanical Engineering; Lighting; Heating | 18 | Expired |
| US4251023A | Centrifuge with horizontally journalled rotor | Performing Operations; Transporting | 17 | Expired |
| US4759744A | Centrifugal separator with recirculation of separated sludge | Performing Operations; Transporting | 17 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.