Christopher Callahan — 2 Patents at Microsoft

Christopher Callahan has been granted 2 US patents while listed as an inventor at Microsoft. The first was granted in 2010 and the most recent in October 2014. Christopher Callahan ranks #1,709,992 of 4,157,543 US inventors in our database (top 41.1%). Patent records list Christopher Callahan in Woodinville, WA, US.

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #	Title	Co-Inventors	Date	Approx Value ⓘ
8864171	Scooter for a handicapped child	—	2014-10-21
7673178	Break and optional hold on failure	Loren Merriman, Gordon Hardy, Curtis Anderson, Michael Robinson, Dipak Boyed	2010-03-02	$22,070,000

Christopher Callahan — 2 Patents

Issued Patents All Time

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