IPNews® – A Sequenom patent for a prenatal DNA test was once again ruled invalid, this time by the U.S. Court of Appeals.

The DNA blood test which detects fetal chromosomal abnormalities can be performed as early as 10 weeks into a pregnancy and the test is considered superior to other tests because it is completely noninvasive.  The court held that the patent deals with naturally occurring processes, which are not patentable. To continue reading, click: Sequenom Patent on Prenatal DNA Test Remains Invalid