title: Antibody patent claims tighten.
mesh_terms: D061067:Antibodies, Monoclonal, Humanized / Q000276:immunology; D018664:Interleukin-12 / Q000276:immunology; D010330:Patents as Topic / Q000331:legislation & jurisprudence*; D014481:United States; D000069549:Ustekinumab
chemical_list: D061067:Antibodies, Monoclonal, Humanized; D018664:Interleukin-12; D000069549:Ustekinumab