HENDERSON, Nev.--(BUSINESS WIRE)--Spectrum Pharmaceuticals (NasdaqGS: SPPI), a biotechnology company with fully integrated commercial and drug development operations with a primary focus in hematology and oncology, today announced that the United States Patent and Trademark Office (USPTO) has extended by more than two years U.S. Patent No. 6,500,829, which covers FUSILEV® (levoleucovorin) for injection. The extension was granted through the Hatch-Waxman Act and extends the original December 31, 2019 expiration date to March 7, 2022.
