Xiaodan GUO — 1 Patent at AT&T

Xiaodan GUO has been granted 1 US patent while listed as an inventor at AT&T. All of these patents were granted in 2009. Xiaodan GUO ranks #2,406,284 of 4,157,543 US inventors in our database (top 57.9%). Patent records list Xiaodan GUO in Lake Hopatcong, NJ, US.

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #	Title	Co-Inventors	Date	Approx Value ⓘ
7574437	Method for identifying new or recently changed telephone service	Robert C. Hain, Ronald Mueller, William J. Infosino, John Gerow Ramage	2009-08-11	$66,027,000

Xiaodan GUO — 1 Patent

Issued Patents All Time

Patent Widget