IPC classes and the technology field description
Posted: Thu Nov 29, 2018 3:36 pm
Dear sir, madam,
I have a number of patents downloaded from PATSTAT (edition 2018B), for which I retrieved the IPC classes (4 digits level).
As these codes are not telling much, I would like to link each code to its description.
Using the table TLS901_TECHN_FIELD_IPC, I can for instance link the IPC class G10L to the following information:
- Technology sector: Electrical engineering;
- Technology field: Computer technology;
However, also the above description remain relatively broad. Having searched the internet, I came across the WIPO website with more fine-grained descriptions.
According to the WIPO website G10L corresponds to speech analysis and speech recognition.
I have the following questions above these IPC descriptions:
1) Can I find more fine grained IPC descriptions in PATSTAT then found in table TLS901_TECHN_FIELD_IPC (e.g. same style as WIPO descriptions)?;
2) Are IPC descriptions between EPO and WIPO compatible with each other?;
Thank you.
I have a number of patents downloaded from PATSTAT (edition 2018B), for which I retrieved the IPC classes (4 digits level).
As these codes are not telling much, I would like to link each code to its description.
Using the table TLS901_TECHN_FIELD_IPC, I can for instance link the IPC class G10L to the following information:
- Technology sector: Electrical engineering;
- Technology field: Computer technology;
However, also the above description remain relatively broad. Having searched the internet, I came across the WIPO website with more fine-grained descriptions.
According to the WIPO website G10L corresponds to speech analysis and speech recognition.
I have the following questions above these IPC descriptions:
1) Can I find more fine grained IPC descriptions in PATSTAT then found in table TLS901_TECHN_FIELD_IPC (e.g. same style as WIPO descriptions)?;
2) Are IPC descriptions between EPO and WIPO compatible with each other?;
Thank you.