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USPTO Patent Rankings Data through Dec 31, 2025
IT

Ihung Tu — 11 Patents

AEAlpine Electronics: 11 patents #15 of 637Top 3%
Anaheim, CA: #94 of 1,337 inventorsTop 8%
California: #56,011 of 386,348 inventorsTop 15%
Overall (All Time): #435,149 of 4,157,543Top 15%
11 Patents All Time
Ihung Tu has been granted 11 US patents while listed as an inventor at Alpine Electronics. The first was granted in 2004 and the most recent in November 2012. Ihung Tu ranks #435,149 of 4,157,543 US inventors in our database (top 10.5%). Patent records list Ihung Tu in Anaheim, CA, US.

Issued Patents All Time

Showing 1–11 of 11 patents

Patent #TitleCo-InventorsDate
8306741 Method and apparatus for navigation system using routing data created by remote navigation server 2012-11-06
8175801 Link promotion method and apparatus for improving route search performance for navigation system Lei Zhao, Ashish Patel, Tien Vu, Luoyi Ren, Serge Orlov +1 more 2012-05-08
7945383 Route determination method and apparatus for navigation system David Schaaf, Tien Vu 2011-05-17
7590488 Route condition evaluation method and apparatus for navigation system 2009-09-15
7272489 Navigation method and system for extracting, sorting and displaying POI information 2007-09-18
7155339 Display method and apparatus for navigation system for searching POI and arranging listing order of POI 2006-12-26
7107147 Data correction method and apparatus using key filtering function for entering data in navigation system Joey Pascual 2006-09-12
6999875 Display method and apparatus for navigation system 2006-02-14
6934705 Data sorting method and navigation method and system using the sorting method 2005-08-23
6839628 Display method and apparatus for arranging order of listing points of interest for navigation system 2005-01-04
6691027 Method and apparatus for finding shortest overall path of multiple destinations by navigation system 2004-02-10