Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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Karthik Ramakrishnan — 13 Patents

Amazon: 7 patents #2,333 of 19,158Top 15%
RERedknee: 6 patents #5 of 43Top 15%
Bellevue, WA: #916 of 6,950 inventorsTop 15%
Washington: #7,874 of 76,902 inventorsTop 15%
Overall (All Time): #362,438 of 4,157,543Top 9%
13 Patents All Time
Karthik Ramakrishnan has been granted 13 US patents while listed as an inventor at Amazon. The first was granted in 2008 and the most recent in March 2025. Karthik Ramakrishnan ranks #362,438 of 4,157,543 US inventors in our database (top 8.7%). Patent records list Karthik Ramakrishnan in Bellevue, WA, US.

Patents per Year

Patents granted per year, 2008 to 2025Bar chart with a peak of 3 patents in 2015.peak 32008: 1 patents20082010: 2 patents20102012: 2 patents20122013: 1 patents20132015: 3 patents20152020: 1 patents20202023: 1 patents20232024: 1 patents20242025: 1 patents2025

Issued Patents All Time

Showing 1–13 of 13 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
12254548 Listener animation Gourav Datta, Vivek Yadav, Yue Wu, Ayush Jaiswal, Rajiv Reddy +2 more 2025-03-18
12111162 Techniques for reactive route planning Phillip Oliver Kriett, Quico Pepijn Spaen, Georgios Patsakis, Diwakar Tiwari, Akhand Pratap Singh +4 more 2024-10-08 $525,927,000
11562739 Content output management based on speech quality Andrew Smith, Christopher Schindler, Rohit Prasad, Michael Martin George, Rafal Kuklinski 2023-01-24 $267,686,000
10600408 Content output management based on speech quality Andrew Smith, Christopher Schindler, Rohit Prasad, Michael Martin George, Rafal Kuklinski 2020-03-24 $66,819,000
9218806 Generation and use of multiple speech processing transforms Stan Weidner Salvador, Shengbin Yang, Hugh Evan Secker-Walker 2015-12-22 $95,233,000
8996372 Using adaptation data with cloud-based speech recognition Hugh Evan Secker-Walker, Bjorn Hoffmeister, Ryan Paul Thomas, Stan Weidner Salvador 2015-03-31 $55,949,000
8972243 Parse information encoding in a finite state transducer Nikko Strom 2015-03-03 $52,333,000
8407344 Method and system for active profile server Bohdan Zabawskyj, Rushabhdev Gudka, Kar Wai Wong, Philip Steele 2013-03-26
8270942 Method for the interception of GTP-C messages Bohdan Zabawskyj, Rubens Rahim 2012-09-18
8244859 Method for implementing an internet protocol (IP) charging and rating middleware platform and gateway system Ian Gordon Collett, Rubens Rahim 2012-08-14
7792086 Method for implementing an intelligent content rating middleware platform and gateway system Jeff Popoff, Victor Leung 2010-09-07
7644158 Method for implementing an internet protocol (IP) charging and rating middleware platform and gateway system Ian Gordon Collett, Rubens Rahim 2010-01-05
7457865 Method for implementing an internet protocol (IP) charging and rating middleware platform and gateway system Ian Gordon Collett, Rubens Rahim 2008-11-25