| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_eae38773dcd90a07809ea07e15a35602
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_2765591ec1b1c5042a733b9f2f6d920a
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_e47e43a6033dfcb57546851682127876
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_e46a4ce70298fcfae6e6e05438d6e3c3
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_812f3bf71227bd190de569701ed1bfc1 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B2103-46 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B24-2664
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B28-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K8-487
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B24-2652
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B24-163
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B24-2688
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B7-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B24-287 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G61-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08J3-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K8-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C04B24-26
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K8-487 |
| filingDate |
2016-04-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
2017-07-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_25c68ecffcdca3e6ad7ffe61e8afa27a
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_8ac9bdf7d59eca059fb76b4ba3605ca4
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_fb5cd58f8899136a6546be119b585aa4
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_e1404571ba0851efe549ca140c92df64 |
| publicationDate |
2017-07-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-9714372-B1 |
| titleOfInvention |
Well cementing |
| abstract |
A hydraulic cementing composition and a method of making the same is disclosed. The composition is useful to form a sheath of hardened cement in the annular space between a well pipe disposed in a well bore and the walls of the well bore. The cementing composition is a mixture of dry ingredients comprising hydraulic cement and an additive to control the loss of fluid from an aqueous slurry containing the cementing composition. The fluid loss additive and a method of making the same is disclosed. The fluid loss additive is the reaction product of three chemical compounds each having an ethylene backbone and functional groups selected from carboxylates, hydrogen, anhydrides and combinations thereof. |
| priorityDate |
2013-11-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |