質問
Since the patent application is already a costly procedure, we would like to calculate in the possible risk of a patent challenge. In your experience, how likely is it for an electronics patent to be revoked?
回答: 5 public & 1 非公開
In Europe, revocation of the patent is a possible outcome. The follwing statistics before the European Patent Office, may be of interest, suggesting about 1% of granted patents are revoked in post grant opposition proceedings (31% revocation rate of 4.7% opposition rate).
http://www.epo.org/about-us/annual-reports-statistics/annual-report/2014/statistics/searches.html
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