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USPTO Patent Rankings Data through Dec 31, 2025
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Sumanta Chakraborty — 3 Patents

COCerence Operating: 2 patents #23 of 117Top 20%
Siemens Aktiengesellschaft: 1 patents #10,653 of 22,248Top 50%
San Ramon, CA: #998 of 2,140 inventorsTop 50%
California: #150,760 of 386,348 inventorsTop 40%
Overall (All Time): #1,328,092 of 4,157,543Top 35%
3 Patents All Time
Sumanta Chakraborty has been granted 3 US patents while listed as an inventor at Cerence Operating. The first was granted in 2009 and the most recent in April 2025. Sumanta Chakraborty ranks #1,328,092 of 4,157,543 US inventors in our database (top 31.9%). Patent records list Sumanta Chakraborty in San Ramon, CA, US.

Patents per Year

Patents granted per year, 2009 to 2025Bar chart with a peak of 1 patents in 2009.peak 12009: 1 patents20092023: 1 patents20232025: 1 patents2025

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
12269491 Methods and systems for increasing autonomous vehicle safety and flexibility using voice interaction Nils Lenke, Johan Wouters, Adam Emfield, Charles L. Ortiz, JR. 2025-04-08
11577742 Methods and systems for increasing autonomous vehicle safety and flexibility using voice interaction Nils Lenke, Johan Wouters, Adam Emfield, Charles L. Ortiz, JR. 2023-02-14
7587215 User interface for cellular telephone group calls Jibu Joseph, Utpal Das, Harpreet Singh 2009-09-08 $2,226,000

Frequent Collaborators

Adam Emfield2 shared
Johan Wouters2 shared
Nils Lenke2 shared
Charles L. Ortiz, JR.2 shared
Utpal Das1 shared
Jibu Joseph1 shared

Nearby-Ranked Inventors

Daniel Silion3
Hangfeng Li3
Mark Vander Wal3
Chad M. Goltzman3
Sathish Kumar Thanganathan3
Debbie Maloyd3
Ethan Alexander Garrett3
Paul Sabatka3
Sergii Bomko3