The National Association of Manufacturers, where I work, tallies the votes of all members of Congress, selecting "key votes" as identified by a committee of our member manufacturers. I've posted Sen. Biden's voting record at Shopfloor.org here. (A few formatting problems.)
Included in the listing is a selection of key votes on legal reform issues from the 106th-109th Congress, i.e., 1999-2006. We ranked 13 votes, and Sen. Biden was opposed to the NAM's position -- the legal reform position -- all 13 times. In other words, a 0 percent ranking.
You can see the entire list here. Scroll down.