| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_7e0c8f70d1c104b5252d86f1a6b38bed
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_c7e7ff7b952978f9fa9a414143713fa3 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K2208-12 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K8-12
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K8-24
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F2-32
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K8-035
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F220-56 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K8-12
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K8-24 |
| filingDate |
2015-10-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
2018-09-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_a7bec0472faeb14cb185662db8c5145c
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_032b0af13c1767d50f6639b157639da2
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_03184e4e0509f8731cd50cf5432f97b8
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_3d64ed57212636ad73e3ca753a21aa08 |
| publicationDate |
2018-09-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-10072197-B2 |
| titleOfInvention |
Crosslinked high molecular weight polymers for use in water-based drilling fluids |
| abstract |
Crosslinked high molecular weight acrylamide and 2-acrylamido-2-methylpropane sulfonic acid copolymers in inverse emulsion form act as inhibitive and encapsulating agents for water-based drilling fluids system. The crosslinked copolymer are particularly useful for high salt, high density drilling fluids in high temperature and high pressure applications. |
| priorityDate |
2015-10-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |