Skip to Main Content

Patent Databases Research Guide

Free Patent Data Sources

Non-redundant Patent Sequences

The non-redundant patent sequence databases have been created at two levels from the patent class (PAT) in  EMBL-Bank and the patent proteins databases. Level-1 non-redundant patent sequences are 100% identical over the same length; Level-2 non-redundant patent sequences are identical and belong to a same patent family (the same invention). Level-2 sequence clusters have been enriched with biological information and additional data from the patent documents. 

The user can run the similarity & homology tool, e.g.  FASTA, to search sequences against the non-redundant databases, and use EBI Search ( NRNL1 ,  NRNL2NRPL1 and  NRPL2) for text querying.