Inventor · disambiguated record
Sudarsanam Chellappa
Also filed as: CHELLAPPA SUDARSANAM
9 granted patents·2 pending applications·66 citations·filing 2004–2023
85Inventor score
Files withSMITH INTERNATIONAL5SCHLUMBERGER TECHNOLOGY CORP3LI YANMEI1SAYLOR III JAMES E1WELLBORE INTEGRITY SOLUTIONS LLC1
Top patents by PatentIndex Score
11 records- 0182US8607861B2Metal-to-metal seal with retention deviceSAYLOR III JAMES E·Filed 2010·Granted Dec 17, 2013·8 cites·26 claims
- 0281US8596345B2RCD sealing elements with multiple elastomer materialsLI YANMEI·Filed 2011·Granted Dec 3, 2013·8 cites·36 claims
- 0377US10648266B2Downhole milling cutting structuresWELLBORE INTEGRITY SOLUTIONS LLC·Filed 2017·Granted May 12, 2020·5 cites·18 claims
- 0475US8020638B2Seal with dynamic sealing surface at the outside diameterSMITH INTERNATIONAL·Filed 2006·Granted Sep 20, 2011·16 cites·38 claims
- 0571US12006773B2Drilling tool having pre-fabricated componentsSCHLUMBERGER TECHNOLOGY CORP·Filed 2021·Granted Jun 11, 2024·0 cites·18 claims
- 0662US12435577B2Bit insert for a drill bitSCHLUMBERGER TECHNOLOGY CORP·Filed 2023·Granted Oct 7, 2025·0 cites·19 claims
- 0762US7461708B2Elastomeric seal assembly having auxiliary annular seal componentsSMITH INTERNATIONAL·Filed 2004·Granted Dec 9, 2008·27 cites·53 claims
- 0860US9926746B2Actuating a downhole toolSMITH INTERNATIONAL·Filed 2014·Granted Mar 27, 2018·2 cites·19 claims
- 0952US12031386B2Blade coverSCHLUMBERGER TECHNOLOGY CORP·Filed 2021·Granted Jul 9, 2024·0 cites·18 claims
- 1039US2016032710A1Tool for measuring wellbore geometrySMITH INTERNATIONAL·Filed 2014·Application pending·0 cites
- 1134US2006065445A1Rock-bit seals with asymmetric contact profilesSMITH INTERNATIONAL·Filed 2004·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →