Sudarsanam Chellappa

Person

Houston, TX, US

People

Patents Grantslast 30 patents

Information Patent Grant
Blade cover
- Patent number 12,031,386
- Issue date Jul 9, 2024
- Schlumberger Technology Corporation
- Huimin Song
- E21 - EARTH DRILLING MINING
Information Patent Grant
Drilling tool having pre-fabricated components
- Patent number 12,006,773
- Issue date Jun 11, 2024
- Schlumberger Technology Corporation
- Youhe Zhang
- B22 - CASTING POWDER METALLURGY
Information Patent Grant
Downhole milling cutting structures
- Patent number 10,648,266
- Issue date May 12, 2020
- Wellbore Integrity Solutions LLC
- Zhenbi Su
- E21 - EARTH DRILLING MINING
Information Patent Grant
Actuating a downhole tool
- Patent number 9,926,746
- Issue date Mar 27, 2018
- Smith International, Inc.
- Rui Gao
- E21 - EARTH DRILLING MINING
Information Patent Grant
Metal-to-metal seal with retention device
- Patent number 8,607,861
- Issue date Dec 17, 2013
- Smith International, Inc.
- James E. Saylor
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
RCD sealing elements with multiple elastomer materials
- Patent number 8,596,345
- Issue date Dec 3, 2013
- Smith International, Inc.
- Yanmei Li
- E21 - EARTH DRILLING MINING
Information Patent Grant
Seal with dynamic sealing surface at the outside diameter
- Patent number 8,020,638
- Issue date Sep 20, 2011
- Smith International, Inc.
- Sudarsanam Chellappa
- E21 - EARTH DRILLING MINING
Information Patent Grant
Elastomeric seal assembly having auxiliary annular seal components
- Patent number 7,461,708
- Issue date Dec 9, 2008
- Smith International, Inc.
- Zhou Yong
- E21 - EARTH DRILLING MINING

Patents Applicationslast 30 patents

Information Patent Application
DRILLING TOOL HAVING PRE-FABRICATED COMPONENTS
- Publication number 20240328261
- Publication date Oct 3, 2024
- SCHLUMBERGER TECHNOLOGY CORPORATION
- Youhe Zhang
- B22 - CASTING POWDER METALLURGY
Information Patent Application
BIT INSERT FOR A DRILL BIT
- Publication number 20240026740
- Publication date Jan 25, 2024
- SCHLUMBERGER TECHNOLOGY CORPORATION
- Youhe Zhang
- E21 - EARTH DRILLING MINING
Information Patent Application
BLADE COVER
- Publication number 20240011358
- Publication date Jan 11, 2024
- SCHLUMBERGER TECHNOLOGY CORPORATION
- Huimin Song
- E21 - EARTH DRILLING MINING
Information Patent Application
DRILLING TOOL HAVING PRE-FABRICATED COMPONENTS
- Publication number 20210222497
- Publication date Jul 22, 2021
- SCHLUMBERGER TECHNOLOGY CORPORATION
- Youhe Zhang
- B22 - CASTING POWDER METALLURGY
Information Patent Application
DOWNHOLE MILLING CUTTING STRUCTURES
- Publication number 20180094496
- Publication date Apr 5, 2018
- Schlumberger Technology Corporation
- Zhenbi Su
- E21 - EARTH DRILLING MINING
Information Patent Application
TOOL FOR MEASURING WELLBORE GEOMETRY
- Publication number 20160032710
- Publication date Feb 4, 2016
- Smith International, Inc.
- Jianbing Hu
- E21 - EARTH DRILLING MINING
Information Patent Application
ACTUATING A DOWNHOLE TOOL
- Publication number 20140374163
- Publication date Dec 25, 2014
- Rui Gao
- E21 - EARTH DRILLING MINING
Information Patent Application
RCD SEALING ELEMENTS WITH MULTIPLE ELASTOMER MATERIALS
- Publication number 20120118559
- Publication date May 17, 2012
- Smith International, Inc.
- Yanmei Li
- E21 - EARTH DRILLING MINING
Information Patent Application
METAL-TO-METAL SEAL WITH RETENTION DEVICE
- Publication number 20110095485
- Publication date Apr 28, 2011
- Smith International, Inc.
- James E. Saylor, III
- E21 - EARTH DRILLING MINING
Information Patent Application
Seal With Dynamic Sealing Surface At The Outside Diameter
- Publication number 20080099244
- Publication date May 1, 2008
- Smith International, Inc.
- Sudarsanam Chellappa
- E21 - EARTH DRILLING MINING
Information Patent Application
Rock-bit seals with asymmetric contact profiles
- Publication number 20060065445
- Publication date Mar 30, 2006
- Smith International, Inc.
- Sudarsanam Chellappa
- E21 - EARTH DRILLING MINING
Information Patent Application
Elastomeric seal assembly having auxiliary annular seal components
- Publication number 20060032673
- Publication date Feb 16, 2006
- Smith International, Inc.
- Zhou Yong
- E21 - EARTH DRILLING MINING

Sudarsanam Chellappa

Person

Patents Grantslast 30 patents

Blade cover

Drilling tool having pre-fabricated components

Downhole milling cutting structures

Actuating a downhole tool

Metal-to-metal seal with retention device

RCD sealing elements with multiple elastomer materials

Seal with dynamic sealing surface at the outside diameter

Elastomeric seal assembly having auxiliary annular seal components

Patents Applicationslast 30 patents

DRILLING TOOL HAVING PRE-FABRICATED COMPONENTS

BIT INSERT FOR A DRILL BIT

BLADE COVER

DRILLING TOOL HAVING PRE-FABRICATED COMPONENTS

DOWNHOLE MILLING CUTTING STRUCTURES

TOOL FOR MEASURING WELLBORE GEOMETRY

ACTUATING A DOWNHOLE TOOL

RCD SEALING ELEMENTS WITH MULTIPLE ELASTOMER MATERIALS

METAL-TO-METAL SEAL WITH RETENTION DEVICE

Seal With Dynamic Sealing Surface At The Outside Diameter

Rock-bit seals with asymmetric contact profiles

Elastomeric seal assembly having auxiliary annular seal components