Alan Cha — 13 Patents at Directv

Alan Cha has been granted 13 US patents while listed as an inventor at Directv. The first was granted in 2002 and the most recent in November 2021. Alan Cha ranks #362,438 of 4,157,543 US inventors in our database (top 8.7%). Patent records list Alan Cha in Glendale, CA, US.

Issued Patents All Time

Showing 1–13 of 13 patents

Patent #	Title	Co-Inventors	Date	Approx Value ⓘ
11188529	Autonomous generation of a graph query language interface on top of an application programming interface	John E. Wittern, Jim A. Laredo	2021-11-30	$2,996,000
7890052	Stratospheric-based communication system for mobile users using additional phased array elements for interference rejection	Donald C. D. Chang, Jacqueline C. Chen, Frank A. Hagen	2011-02-15	$76,787,000
7317916	Stratospheric-based communication system for mobile users using additional phased array elements for interference rejection	Donald C. D. Chang, Jacqueline C. Chen, Frank A. Hagen	2008-01-08	$73,638,000
7257418	Rapid user acquisition by a ground-based beamformer	Donald C. D. Chang, Ying Feria	2007-08-14	$71,752,000
6941138	Concurrent communications between a user terminal and multiple stratospheric transponder platforms	Donald C. D. Chang	2005-09-06	$19,591,000
6914557	Micro cell architecture for mobile user tracking communication system	Donald C. D. Chang, Ying Feria, Weizheng Wang, Ming U. Chang, Frank A. Hagen +1 more	2005-07-05	$99,652,000
6895217	Stratospheric-based communication system for mobile users having adaptive interference rejection	Donald C. D. Chang	2005-05-17	$98,258,000
6763242	Resource assignment system and method for determining the same	Ying Feria, Ming U. Chang, Donald C. D. Chang, Frank A. Hagen	2004-07-13	$26,791,000
6756937	Stratospheric platforms based mobile communications architecture	Donald C. D. Chang, Ming U. Chang, Ying Feria, Weizheng Wang, Kar W. Yung +1 more	2004-06-29	$36,776,000
6751458	Architecture utilizing frequency reuse in accommodating user-link and feeder-link transmissions	Weizheng Wang, Donald C. D. Chang, Ming U. Chang, Ying Feria	2004-06-15	$136,687,000
6549166	Four-port patch antenna	Arun Bhattacharyya, James P. McKay	2003-04-15	$12,936,000
6424299	Dual hybrid-fed patch element for dual band circular polarization radiation	Arun Bhattacharyya	2002-07-23	$72,237,000
6388615	Micro cell architecture for mobile user tracking communication system	Donald C. D. Chang, Ying Feria, Weizheng Wang, Ming U. Chang, Frank A. Hagen +1 more	2002-05-14

Alan Cha — 13 Patents

Issued Patents All Time

Patent Widget