| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_5c2f7c0abed54195b555c8ecfc280491 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F02F5-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C25D3-04 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C23C28-347
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C25D5-48
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C23C14-0605
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C23C28-322
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C25D15-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F16J9-26
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C23C28-343 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/F16J9-26
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C23C28-00 |
| filingDate |
2018-11-28^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_27980f7b2ae690b2556ced73dacc11fb
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_4fb0971276a2db094c0442176dc0848e
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_b29f134bc01d8237f0bb37645dce0ff2
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_ce74675e003ab106a8fe56360df9ec03 |
| publicationDate |
2020-10-01^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-2020309263-A1 |
| titleOfInvention |
Piston ring |
| abstract |
A piston ring (10) has a running surface (12) and a flank surface (14) which are coated. The uppermost layer of the running surface (12) is a hydrogen-containing or a hydrogen-free DLC layer, and the uppermost layer of at least one flank surface (14) is a chromium layer. A method of producing a piston ring (10) includes forming a DLC layer as the uppermost layer of the running surface (12), and forming a chromium layer as the uppermost layer of at least one flank surface (14). |
| priorityDate |
2017-11-30^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |