Even more processes are never patented at all but kept as secret processes.

更多的工艺过程根本就不会取得专利权，而是作为秘方保存着。

For the first time in its 70-year history, the United Nations has opened up the usually secret process of choosing its next Secretary General.

联合国成立70周年以来，秘书长遴选首次透明化。