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The patent applications filed in 1999 at the INPI can be comprehensively analysed for illustrating the most recent French patent story.
In this cohort, more than 7 out of 10 patent applications are granted. 9 years after their filing date (in 2008), half of these granted patents were still in force, and 16 years after their filing date (in 2015), there were about 20%.
Two main factors have a positive influence on the maintenance of these patents: patents that survived after litigation before French Courts and patents encompassing numerous claims.