Westfalia Separator GmbH
198Patents
14Active
198Granted
43Portfolio score
Filing activity: Nov 5, 1973 → Nov 8, 2007 · 14 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4586462A | Support and withdrawal mechanism for milking clusters | Human Necessities | 50 | Expired |
| US4950220A | Throughput centrifuge for industrial production of proteins from human blood plasma | Performing Operations; Transporting | 40 | Expired |
| US4278200A | Continuously operating centrifugal separator drum for the concentration of suspended solids | Performing Operations; Transporting | 32 | Expired |
| US4299353A | Drive for a continuously operating screw ejection centrifugal separator | Performing Operations; Transporting | 31 | Expired |
| US6530871B1 | Centrifuge having a bag arrangement and a method for operating the centrifuge | Performing Operations; Transporting | 27 | Expired |
| US4151950A | Continuously operating centrifugal separator having hydraulically operated valves | Performing Operations; Transporting | 25 | Expired |
| US7074173B2 | Centrifuge having a centrifugal drum and a groove including a seal | Performing Operations; Transporting | 22 | Expired |
| US7204795B2 | Deviation ring for a self-distributing centrifuge | Performing Operations; Transporting | 22 | Expired |
| US4305817A | Self-emptying clarifying drum | Performing Operations; Transporting | 21 | Expired |
| US6390964B1 | Device for cooling a centrifugal device and method for centrifuge operation | Performing Operations; Transporting | 19 | Expired |
| US3938734A | Controlling system for the displacement of the specifically lighter liquid components from a self-emptying separator | Performing Operations; Transporting | 18 | Expired |
| US6988980B2 | Separator with bearing lubrication arrangement | Mechanical Engineering; Lighting; Heating | 17 | Expired |
| US5784993A | System for controlling and operating a cow-milking carousel | Human Necessities | 17 | Expired |
| US4755165A | Method and device for separating two liquid phases by means of a centrifuge | Performing Operations; Transporting | 16 | Expired |
| US4805659A | Method of driving a centrifuge and device for carrying out the method | Emerging Cross-Sectional Technologies | 16 | Expired |
| US4410319A | Self-discharging centrifugal drum | Performing Operations; Transporting | 16 | Expired |
| US5260079A | Method of and equipment for controlling the content of fat in milk | Human Necessities | 16 | Expired |
| US4717376A | Centrifuge with a self-emptying drum | Performing Operations; Transporting | 15 | Expired |
| US4149668A | Centrifugal separator with outlet valves | Performing Operations; Transporting | 15 | Expired |
| US4820420A | Process for the secondary purification and stabilization of liquids containing polyphenols and/or proteins, particularly beverages and more especially beer | Chemistry; Metallurgy | 15 | Expired |
| US4083488A | Centrifugal separator having hydraulically operated outlet valves | Performing Operations; Transporting | 14 | Expired |
| US4605040A | Valve that automatically regulates an operating partial vacuum in milking systems | Emerging Cross-Sectional Technologies | 14 | Expired |
| US5848959A | Lubicated vertical transmission shaft for driving a centrifugal drum | Mechanical Engineering; Lighting; Heating | 14 | Expired |
| US5885202A | Solid-bowl centrifuge with continuously variable liquid level | Performing Operations; Transporting | 13 | Expired |
| US6960158B2 | Centrifugal separator | Performing Operations; Transporting | 13 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.