Can product-by-process patents provide the protection needed for proteins made by recombinant DNA technology?

Digital citation created by the Bioethics Research Library, Georgetown University, for the National Information Resource on Ethics and Human Genetics, a project funded by the United States National Human Genome Research Institute||Digital citation migrated from OpenText Livelink Discovery Server database named GenETHX to DSpace collection GenETHX: Genetics and Ethics database hosted by Georgetown University