2. Understanding the content of bibliographic records and the IPC

The different information contained in bibliographic records can be analyzed separately (lists, chronologies) or combined together (matrices, networks), to provide you with a global knowledge of the subject from the APA tool.

The "titles" and "abstracts" fields pose no particular problems. Neither do the "inventors" and "applicants" fields, except that the names may be spelled differently or truncated (in the case of applicants). It will therefore be important to standardize the names of applicants or inventors in order to access real frequencies.

The "date" field refers to the patent filing date, the "PN" field to the patent number (as a patent can be extended to other countries, the same invention is protected in different countries by patents with different numbers, in which case we speak of a patent family), and the "PR" field to the...