SOUTH SAN FRANCISCO, Calif.--(BUSINESS WIRE)--Genentech, Inc. (NYSE:DNA) today announced financial results for the second quarter of 2007. Key results for the second quarter of 2007 include: * U.S. product sales of $2,149 million, a 25 percent increase over U.S. product sales of $1,716 million in the second quarter of 2006.