Changes

Patent pools are agreements between "two or more patent owners to license one or more of their patents to one another or to third parties." [http://www.wipo.int/export/sites/www/ip-competition/en/studies/patent_pools_report.pdf (WIPO)] Generally, patent pools cover mature and complex technologies that require complementary patents to develop compatible products and services. [http://www.wipo.int/export/sites/www/ip-competition/en/studies/patent_pools_report.pdf (WIPO)] Patent pools are useful when new products are based on multiple existing patents or on one invention with patents on many of its components. [http://www.theglobalipcenter.com/sites/default/files/reports/documents/Prizes__Patent_Pools.pdf (Global IP CenterGIPC)]