High Quality Content by WIKIPEDIA articles! A gene patent is a patent on a specific isolated gene sequence, its chemical composition, the processes for obtaining or using it, or a combination of such claims. With respect to subject matter, gene patents may be considered a subset of the broader category of biological patents. As with all utility patents in the U.S, the patent provides the patent holder with the right to exclude others from making, using, selling, or importing the claimed invention for a limited period of time - for patents filed after 1998, twenty years from the filing date.