What is WIPO Standard ST.10/C?
This standard deals with the presentation of bibliographic data on patent documents. One component of the bibliographic data is the IPC symbols that were assigned to a patent document when its technical subject matter was classified. For the presentation of the symbols, four different font styles, regular, bold, italics and bold italics, may be used: • Symbols in “bold italics” indicate that the advanced level was used for classifying invention information; • Symbols in “italics” indicate that the advanced level was used for classifying additional information; • Symbols in “bold regular” font indicate that the core level was used for classifying invention information; • Symbols in “regular” font indicate that the core level was used for classifying additional information. It should be noted that a symbol which is both part of the core and of the advanced levels (i.e. a symbol which is usually called a core level symbol) may appear on one document in bold italics and on another document
