EP1144619A1 - Verfahren zur ultrafiltration - Google Patents
Verfahren zur ultrafiltrationInfo
- Publication number
- EP1144619A1 EP1144619A1 EP00928724A EP00928724A EP1144619A1 EP 1144619 A1 EP1144619 A1 EP 1144619A1 EP 00928724 A EP00928724 A EP 00928724A EP 00928724 A EP00928724 A EP 00928724A EP 1144619 A1 EP1144619 A1 EP 1144619A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- pressure differential
- membrane
- constant pressure
- ultrafiltration
- volume
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Definitions
- US Patent 5,679,310 suggests using a vacuum to filter a multiple well plate which utilizes ultrafiltration or microporous hollow fibers or other large surface area configurations of membranes instead of flat sheet membranes
- the hollow fibers are reported to be used in lieu of flat sheet membranes in order to increase the total surface area of the membrane over that available with a flat sheet
- this product has never been commercialized
- the same process can be used with a multiple welled plate, such as is disclosed in U S Patents 4,902,481 and 5,047,215
- These plates are commercially available in a number of configurations, generally containing from about 6 to 1536 wells per plate
- the most common plate has 96 wells and is available from Millipore Corporation as the MultiScreen® 96 well plate
- the plate can be mounted on top of a vacuum manifold such that the vacuum is applied to the downstream side of the filter A sample to be filtered is placed into one or more of the wells and the vacuum is applied at a force and time sufficient to reach the desired level of filtration
- a positive manifold can be mounted on the upstream side of the membrane and a positive pressure differential can be applied to the liquid at a force and time sufficient to achieve the desired filtration
Landscapes
- Separation Using Semi-Permeable Membranes (AREA)
Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US13236999P | 1999-05-04 | 1999-05-04 | |
| US132369P | 1999-05-04 | ||
| US18235700P | 2000-02-14 | 2000-02-14 | |
| US182357P | 2000-02-14 | ||
| PCT/US2000/011926 WO2000066723A1 (en) | 1999-05-04 | 2000-05-02 | Method of ultrafiltration |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP1144619A1 true EP1144619A1 (de) | 2001-10-17 |
Family
ID=26830300
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP00928724A Withdrawn EP1144619A1 (de) | 1999-05-04 | 2000-05-02 | Verfahren zur ultrafiltration |
Country Status (2)
| Country | Link |
|---|---|
| EP (1) | EP1144619A1 (de) |
| DE (1) | DE1144619T1 (de) |
-
2000
- 2000-05-02 EP EP00928724A patent/EP1144619A1/de not_active Withdrawn
- 2000-05-02 DE DE1144619T patent/DE1144619T1/de active Pending
Non-Patent Citations (1)
| Title |
|---|
| See references of WO0066723A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| DE1144619T1 (de) | 2002-11-14 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
| 17P | Request for examination filed |
Effective date: 20010707 |
|
| AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE |
|
| AX | Request for extension of the european patent |
Free format text: AL;LT;LV;MK;RO;SI |
|
| EL | Fr: translation of claims filed | ||
| DET | De: translation of patent claims | ||
| RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: MILLIPORE CORPORATION |
|
| 17Q | First examination report despatched |
Effective date: 20030725 |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
| 18D | Application deemed to be withdrawn |
Effective date: 20061201 |