Bill Gates Sr. Regents for the University of Washington, and is a co-chair of the Bill and Melinda Gates Foundation, which his son Bill and his daughter-in-law Melinda founded. He has served as a director for Costco Wholesale, a bulk retail corporation, since 2003. He is also a founding co-chair of the Pacific Health Summit. He has adopted the suffix "Sr." to distinguish himself from his more famous son. Gates is co-author, with Chuck Collins, of the book "Wealth and Our Commonwealth: Why America Should Tax Accumulated Fortunes", a defense of the policies promoted by the estate tax. He married Mary Maxwell Gates
Barbarians Led by Bill Gates and GO Corporation. In April 2008, as part of a larger federal court case, the gesture features of the Windows/Tablet PC operating system and hardware were found to infringe on a patent by GO Corp. concerning gesture interfaces in operating systems for portable computers. Barbarians Led by Bill Gates Barbarians Led by Bill Gates: Microsoft from the Inside is a book that was jointly written by Jennifer Edstrom and Marlin Eller, an American programmer who was a manager and a software developer at Microsoft Corporation from 1982–95, and development lead for the Graphics Device Interface (GDI) of Windows 1.0 and