6085
It establishes a common classification for patents for invention , inventors ' certificates , utility models and utility certificates , known as the " International Patent Classification " ( IPC ) .
 organization: IPC
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 organization: IPC