The last major revision of the U.S. patent laws was in 1952. Now, after several years of trying to get patent reform measures through Congress, the Senate today passed H.R. 1249, America Invents Act, which will make sweeping changes to how patents are filed, reviewed, granted, and litigated. The Democratic-held Senate voted 89-9 in passing the bill, which originated in the House of Representatives earlier this year, where it passed by a bipartisan vote of 304-117. Both Maryland Senators--Cardin and Mikulski--voted in favor of passage today. President Obama is expected to sign the new legislation into law.