A set of 9071 patent documents from the open access Lens patent database containing the word drone or drones in the full text of documents published between 1948 and the 31st of December 2017 and reduced from 16,419 publications to one record per family. The records can be accessed online at the public collection https://www.lens.org/lens/collection/45155.
data("lens_drones")
A data frame with 9071 observations of 24 variables:
numberThe record number (row no), a character vector
jurisdictionThe two letter country or instrument code where a document was published, a character vector
kindThe kind code describing the publication level of a document, a character vector
publication_numberThe publication number including forward /, a character vector
lens_idThe internal Lens database identifier, a character vector
publication_datea character vector
publication_yeara character vector
application_numbera character vector
application_datea character vector
priority_numbersPatent priority numbers in long format with dates, a character vector
titleThe patent document title, a character vector
applicantspatent applicants concatenated with ";;", a character vector
inventorsThe original inventor name, concatenated with ";;", a character vector
urlurl link to the record, a character vector
typeA Patent Application, Granted Patent or other type, a character vector
full_textIndicates whether the full text is available at the Lens, a character vector
cited_countNumber of later patent filings citing the document, a character vector
simple family sizeAssumed to be the DOCDB family based on shared priority, a character vector
extented_family_sizeAssumed to be the extended INPADOC family but not documented by the Lens, a character vector
sequence_countA count of DNA or amino acid sequences, a character vector
cpc_classificationThe Cooperative Patent Classification Codes, a character vector
ipcr_classificationsInternational Patent Classification - IPC - codes, a character vector
npl_citation_idsNon patent literature citation identifiers, a character vector
Field names in this dataset have been simplified from their original long form to make them easier to work with in R. Lens Patent data fields are concatenated with a double semicolon and require tidying for accurate counts. Applicant and inventor names have not been cleaned.