| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_be2258efa1dd0212d91e87b0487f4ede |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B2103-408
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B2103-0059
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B2103-0072
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B2103-0074 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B28-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K8-46
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B24-287
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K8-514
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B24-166
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B24-30 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K8-46
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C04B28-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K8-514
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C04B24-16
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C04B24-28
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C04B24-30
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C04B24-02 |
| filingDate |
2003-11-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
2011-12-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_1b7efdc8c2b1b13e25ae2ca097a2cf13
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_bddf8be3dc6a1002448d2dfc9fbf84f0
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_549e3531115c37b28d01c51da09fe8cf |
| publicationDate |
2011-12-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
EP-1625278-B1 |
| titleOfInvention |
Methods of cementing in subterranean zones penetrated by well bores using biodegradable dispersants |
| abstract |
The present invention provides methods of cementing subterranean zones penetrated by well bores using biodegradable dispersants. A cement composition of the invention comprises a hydraulic cement, sufficient water to form a slurry and a water soluble biodegradable cement dispersant comprising a polyamide graft copolymer containing at least one side chain formed from aldehydes and sulfur-containing acids or their salts. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-108048060-A |
| priorityDate |
2003-05-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |