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USPTO Patent Rankings Data through Dec 31, 2025
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Ker-Ren Tu — 4 Patents

ATAT&T: 4 patents #4,409 of 18,772Top 25%
Manalapan, NJ: #104 of 380 inventorsTop 30%
New Jersey: #19,535 of 69,400 inventorsTop 30%
Overall (All Time): #1,080,739 of 4,157,543Top 30%
4 Patents All Time
Ker-Ren Tu has been granted 4 US patents while listed as an inventor at AT&T. The first was granted in 2013 and the most recent in December 2014. Ker-Ren Tu ranks #1,080,739 of 4,157,543 US inventors in our database (top 26.0%). Patent records list Ker-Ren Tu in Manalapan, NJ, US.

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
8908557 Method and apparatus for monitoring a packet network Howard Lang, Jeff Boni, Byron Johnson, Herman Lee, John Lee +3 more 2014-12-09 $16,870,000
8908558 Method and apparatus for detecting a network impairment using call detail records Howard Lang, Jeff Boni, Byron Johnson, Herman Lee, John Lee +3 more 2014-12-09 $16,870,000
8503313 Method and apparatus for detecting a network impairment using call detail records Howard Lang, Jeff Boni, Byron Johnson, Herman Lee, John Lee +3 more 2013-08-06 $13,144,000
8477637 Method and apparatus for monitoring a packet network Howard Lang, Jeff Boni, Byron Johnson, Herman Lee, John Lee +3 more 2013-07-02 $18,340,000