| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_ecaddd5a69b1dda3d7a1479d8f6af1d7 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01P2004-64
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01P2004-62
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01P2004-61 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B82Y30-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01G49-06
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G11B5-70657 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01G49-06
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G11B5-706 |
| filingDate |
1978-06-23^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
1980-05-06^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_138e4f939993a4807a7a84b1f0ef6450 |
| publicationDate |
1980-05-06^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-4201761-A |
| titleOfInvention |
Process for making iron oxide of controlled particle size |
| abstract |
A process for preparing iron oxide with a controlled purity and large particle size which comprises oxidizing at a constant pH a vigorously agitated aqueous suspension of iron oxide crystals while continuously, but slowly adding a water soluble iron solution and continuously withdrawing a portion of the aqueous solution containing large size iron oxide crystals as product. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0406633-A3
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-H03137023-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0406633-A2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4321302-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4323464-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2017016179-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2654238-B2 |
| priorityDate |
1977-06-02^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |