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Legal status
Patent not validated
| (51) | INT.CL. | C09K 8/588 | |
| E21B 43/22 | |||
| C09K 8/584 |
| (11) | Number of the document | 3174951 |
| (13) | Kind of document | T |
| (96) | European patent application number | 15827301.1 |
| Date of filing the European patent application | 2015-07-29 | |
| (97) | Date of publication of the European application | 2017-06-07 |
| (45) | Date of publication and mention of the grant of the patent | 2020-10-28 |
| (46) | Date of publication of the claims translation |
| (86) | Number | PCT/US2015/042715 |
| Date | 2015-07-29 |
| (87) | Number | WO 2016/019052 |
| Date | 2016-02-04 |
| (30) | Number | Date | Country code |
| 201414445599 | 2014-07-29 | US |
| (72) |
LI, Xiaojin Harry, US
REED, Peter E., US
ANDREWS, William J., US
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| (73) |
Ecolab USA Inc.,
1 Ecolab Place, St. Paul, MN 55102,
US
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| (54) | METHOD FOR ENHANCED RECOVERY OF OIL, USING A POLYMER EMULSION |
| METHOD FOR ENHANCED RECOVERY OF OIL, USING A POLYMER EMULSION |