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USPTO Patent Rankings Data through Sept 30, 2025
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Chi-Thanh Dang — 13 Patents

IBM: 12 patents #9,222 of 70,183Top 15%
Xerox: 1 patents #5,237 of 8,622Top 65%
Tucson, AZ: #542 of 6,004 inventorsTop 10%
Arizona: #2,746 of 32,909 inventorsTop 9%
Overall (All Time): #388,523 of 4,157,543Top 10%
13 Patents All Time

Issued Patents All Time

Showing 1–13 of 13 patents

Patent #TitleCo-InventorsDate
7146560 Systems and methods for managing identity information Rambabu Achanta, Robert J. Hatton, Kiranmayec Potnuru, Patricia Agbulos 2006-12-05
5787446 Sub-volume with floating storage space Chi-Hung Dang 1998-07-28
5778374 Compressed common file directory for mass storage systems Chi-Hung Dang 1998-07-07
5715216 Data storage method having a columnar array of storage receptacles that also are input-output and a data device at one end of the columnar array Chi-Hung Dang 1998-02-03
5680377 Automated data storage library employing multi-direction picker with double lip gripper Chi-Hung Dang 1997-10-21
5666337 Data storage apparatus having a columnar array of input-output storage receptacles with physical interlock means Chi-Hung Dang 1997-09-09
5663938 Checkerboad data storage library Chi-Hung Dang 1997-09-02
5659444 Storage library with multiple-directional picker Chi-Hung Dang 1997-08-19
5638347 Disk cartridge storage system Francisco Antonio Baca, Chi-Hung Dang, Kamal Emile Dimitri, Rodney Jerome Means, Raymond Yardy 1997-06-10
5631785 Automated data storage library employing picker with multiple action directions Chi-Hung Dang 1997-05-20
5612934 Record media library accessing using a common accessing mechanism for a plurality of independent media libraries Chi-Hung Dang 1997-03-18
5541897 Multi-carousel library with double disk receptacles and single disk retainer Francisco Antonio Baca, Robert LaMar Bingham, Chi-Hung Dang, Zara F. Hudson 1996-07-30
5535188 Data security protection for information recorded on a rewritable storage medium using a write-once read-many storage medium Chi-Hung Dang 1996-07-09