classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-9450186-B2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2021173242-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-10948784-B2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-9166183-B2 |