| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_42e94091a4fc81b8d0237117707cc7ee |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61F2310-00616
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61F2310-0088
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61F2310-00748
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61F2-3094
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61F2-367
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61F2-3676
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y10S623-909
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61F2-3609
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61F2310-00023
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61F2002-3082
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61F2002-30922 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C23C8-24
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61F2-30767 |
| classificationIPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61F2-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61F2-36 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61F2-30
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C23C8-24
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61L27-00 |
| filingDate |
1991-11-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_4f7d34d7dc36d4bb47401726d79fc7da
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f810ecd5347b8b3e48f5a4628b6d905a
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_24346e87d3d4b5c75006d893dc6593a1
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_1b5059a73d30df784b9e70492096c434 |
| publicationDate |
1992-05-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
EP-0485152-A1 |
| titleOfInvention |
Method of surface hardening titanium and titanium alloy substrates |
| abstract |
A method of surface hardening titanium orthopedic implant devices, and a titanium orthopedic implant device prepared by the disclosed method. An orthopedic implant device made of pure titanium or a titanium alloy, such as Ti-6Al-4V (ELI) is exposed to molecular nitrogen gas at a process temperature and for a process time duration sufficient to enhance surface hardness and wear resistance properties, without the formation of a measurable TiN layer that tends to increase surface roughness and diminish wear resistance properties. The process temperature is in the range of 750°F. to 1300°F., preferably about 1100°F. and the process time duration at the preferred process temperature is approximately 8 hours. The hardened surface of the titanium implant occurs primarily due to solid solution hardening of the titanium with nitrogen by dissolution. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-9716137-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/ES-2142255-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/ES-2099025-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-1867303-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-110106464-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-1980640-A2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-1980640-A3
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/ES-2138921-A1 |
| priorityDate |
1990-11-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |