Weijing Chen — 29 Patents at AT&T

Weijing Chen has been granted 29 US patents while listed as an inventor at AT&T. The first was granted in 2004 and the most recent in November 2025. Weijing Chen ranks #127,851 of 4,157,543 US inventors in our database (top 3.1%). Patent records list Weijing Chen in Leander, TX, US.

Issued Patents All Time

Showing 1–25 of 29 patents

Patent #	Title	Co-Inventors	Date	Approx Value ⓘ
12463848	Systems and methods for data channel estimation in fifth generation new radio physical uplink shared channels	Krishna Srikanth Gomadam, Djordje Tujkovic	2025-11-04
11240206	Broadband access for virtual private networks	Keith Joseph Allen	2022-02-01
10313306	Broadband access for virtual private networks	Keith Joseph Allen	2019-06-04
10212027	Method and apparatus for diagnosing faults in a hybrid internet protocol network	—	2019-02-19	$47,313,000
9491039	Method and apparatus for diagnosing faults in a hybrid internet protocol network	—	2016-11-08	$29,999,000
9467373	Broadband access for virtual private networks	Keith Joseph Allen	2016-10-11
9172652	Method and apparatus for diagnosing faults in a hybrid internet protocol network	—	2015-10-27	$21,492,000
8942240	Broadband access for virtual private networks	Keith Joseph Allen	2015-01-27
8711700	Method and apparatus for diagnosing faults in a hybrid internet protocol network	—	2014-04-29	$16,489,000
8630306	Fast channel change apparatus and method for IPTV	Guangtian Liu	2014-01-14	$19,486,000
8520681	Broadband access for virtual private networks	Keith Joseph Allen	2013-08-27	$16,025,000
8300537	Method and apparatus for diagnosing faults in a hybrid internet protocol network	—	2012-10-30
8243732	Broadband access for virtual private networks	Keith Joseph Allen	2012-08-14	$35,405,000
7813349	Service aware switched SDH/SONET/TDM network	Keith Joseph Allen	2010-10-12	$28,210,000
7778263	Resource reservation protocol based guaranteed quality of service internet protocol connections over a switched network through proxy signaling	Paul Van Vleck, Keith Joseph Allen	2010-08-17	$29,282,000
7751388	Ethernet-based broadband communication channel methods and systems	Russell W. White, Alicia Marie Russell, Ahmad Ansari, Stephen Mark Mueller, Dinesh Nadaralah +1 more	2010-07-06	$34,769,000
7739394	Bi-level addressing for internet protocol broadband access	Keith Joseph Allen	2010-06-15	$17,308,000
7684335	Method and apparatus for diagnosing faults in a hybrid internet protocol network	—	2010-03-23	$138,920,000
7609699	Virtual private network over asynchronous transfer mode	Keith Joseph Allen, Anna Salguero	2009-10-27	$47,251,000
7606218	Ethernet-based digital subscriber line methods and systems	Russell W. White, Alicia Marie Russell, Ahmad Ansari, Stephen Mark Mueller, Dinesh Nadaralah +1 more	2009-10-20	$61,531,000
7447203	Broadband access for virtual private networks	Keith Joseph Allen	2008-11-04	$41,617,000
7301951	Resource reservation protocol based guaranteed quality of service internet protocol connections over a switched network	Keith Joseph Allen	2007-11-27	$71,301,000
7298750	Enhancement of resource reservation protocol enabling short-cut internet protocol connections over a switched network	Keith Joseph Allen	2007-11-20	$47,708,000
7272145	Resource reservation protocol based guaranteed quality of service internet protocol connections over a switched network through proxy signaling	Paul Van Vleck, Keith Joseph Allen	2007-09-18	$123,613,000
7227837	Fault tolerant virtual tandem switch	Haifeng Bi, George C. Allen, Jr., Randy Beamon, Janice Elaine Doerner, Mehran Esfandiari +8 more	2007-06-05	$191,588,000

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Weijing Chen — 29 Patents

Issued Patents All Time

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