Paul Allen

Microsoft co-founder Bill Gates exits company's board of directors

Gates left his CEO position in 2000, handing the company reins to Steve Ballmer to devote more time to his charitable foundation

Space firm founded by billionaire Paul Allen closing operations

Allen's Stratolaunch had been compared to billionaire Richard Branson's Virgin Galactic

Paul Allen: Microsoft Co-founder, philanthropist and a big Bollywood fan

Despite always staying in the shadow of Gates -- his partner and friend since they were teenagers -- Allen was a passionate lover of computers and a key figure in the creation of Microsoft

From antiquity to contemporary, inside Paul Allen's great art collection

Allen knew what he wanted and was ambitious about collecting

Microsoft co-founder Paul Allen leaves legacy of innovation & philanthropy

Allen died just two weeks after publicly revealing that the non-Hodgkin's lymphoma he fought into remission nine years ago had returned.

Paul Allen, who co-founded Microsoft with Bill Gates, dies of cancer at 65

Microsoft said Allen's 'contributions to our company, our industry and to our community are indispensable'