Malcolm Perschke

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Spring, TX, US

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Patents Grantslast 30 patents

Information Patent Grant
Downhole cement flow
- Patent number 10,689,946
- Issue date Jun 23, 2020
- Schlumberger Technology Corporation
- Malcolm Perschke
- G05 - CONTROLLING REGULATING
Information Patent Grant
Downhole cement flow
- Patent number 10,519,743
- Issue date Dec 31, 2019
- Schlumberger Technology Corporation
- Malcolm Perschke
- E21 - EARTH DRILLING MINING
Information Patent Grant
Downhole cement flow
- Patent number 10,227,843
- Issue date Mar 12, 2019
- Schlumberger Technology Corporation
- Malcolm Perschke
- E21 - EARTH DRILLING MINING
Information Patent Grant
Cutting tool
- Patent number 8,881,817
- Issue date Nov 11, 2014
- Smith International, Inc.
- Malcolm Perschke
- E21 - EARTH DRILLING MINING
Information Patent Grant
Methods of making multiple casing cuts
- Patent number 7,762,330
- Issue date Jul 27, 2010
- Smith International, Inc.
- James E. Saylor, III
- E21 - EARTH DRILLING MINING

Patents Applicationslast 30 patents

Information Patent Application
DOWNHOLE CEMENT FLOW
- Publication number 20190203561
- Publication date Jul 4, 2019
- SCHLUMBERGER TECHNOLOGY CORPORATION
- Malcolm Perschke
- G05 - CONTROLLING REGULATING
Information Patent Application
DOWNHOLE CEMENT FLOW
- Publication number 20190203560
- Publication date Jul 4, 2019
- SCHLUMBERGER TECHNOLOGY CORPORATION
- Malcolm Perschke
- G05 - CONTROLLING REGULATING
Information Patent Application
DOWNHOLE CEMENT FLOW
- Publication number 20160222756
- Publication date Aug 4, 2016
- Malcolm Perschke
- E21 - EARTH DRILLING MINING
Information Patent Application
SYSTEM AND METHODOLOGY FOR RUNNING CASING STRINGS THROUGH A CONDUCT...
- Publication number 20160208586
- Publication date Jul 21, 2016
- SCHLUMBERGER TECHNOLOGY CORPORATION
- Malcolm PERSCHKE
- E21 - EARTH DRILLING MINING
Information Patent Application
CUTTING TOOL
- Publication number 20110290487
- Publication date Dec 1, 2011
- Smith International, Inc.
- Malcolm Perschke
- E21 - EARTH DRILLING MINING
Information Patent Application
METHODS OF MAKING MULTIPLE CASING CUTS
- Publication number 20100006290
- Publication date Jan 14, 2010
- Smith International, Inc.
- James E. Saylor, III
- E21 - EARTH DRILLING MINING
Information Patent Application
Milling system and method of milling
- Publication number 20080093076
- Publication date Apr 24, 2008
- Smith International, Inc.
- Harshad Patil
- E21 - EARTH DRILLING MINING