Python converts derwent patent data into webofscience lattice.

1. derwent patent data file is stored in the form of text file, including patent number, title, applicant, application date, authorization date and other field information.

2. According to the fields and requirements that need to be converted, derwent patent data are cleaned and screened to remove useless information and erroneous data, and the fields and data that need to be converted are reserved.

3. According to the requirements of WebofScience format, adjust and combine the fields that need to be converted according to a specific format.

4. Save the converted data as a file conforming to the WebofScience format.