| Predicate |
Object |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C309-62
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K8-584 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C301-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C309-04
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C309-01
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K8-584
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/E21B43-22
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C10G1-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C309-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C303-06
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C303-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C67-00 |
| filingDate |
1972-11-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate |
1976-07-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
DE-2256758-B2 |
| titleOfInvention |
USE OF PETROLEUM SULFONATES FOR THE DISPLACEMENT OF CRUDE OIL FROM EARTH FORMATIONS |
| priorityDate |
1972-03-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |