A bipartisan group of 25 U.S. senators wrote a letter to Senate Majority Leader Harry Reid (D-Nev.) on Wednesday, asking him to bring an amended patent reform bill to the Senate floor as soon as possible.

Fourteen Democrats, 10 Republicans and Sen. Joseph Lieberman (I-Conn.) signed the Sept. 15 letter. Intellectual property insiders say there hasn’t been this much support for a patent bill since the American Inventors Protection Act of 1999.