Roussel Uclaf
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Roussel Uclaf is a French company, headquartered in Romainville. It is involved in healthcare, agro-chemical, animal health and related fields, although in 1994, many of its non-core activities were transferred to Hoechst Schering AgrEvo GmBH in Germany.
Although it has more than 10,000 patents worldwide, Roussel Uclaf is best known for the abortifacient mifepristone, otherwise known by its laboratory name of RU 486. The US patent rights for this drug were donated to Population Council, Inc., a not-for-profit corporation in the USA, in 1994.