A " light grey " literature : the patents.

An historical survey about the origin of the patents demonstrates the absolute necessity of establishing a single service responsible for patent rights, in each country. In France, The INPI (National institute for patent rights) is in charge of receiving, registering and following each request. Besides, it provides the titles to property and follows the publication and the display of patent documents. Foreign inventions are protected under an international cooperation. In France, all patent documents are stored on microforms, before the electronic processing.
Read