Apparatus and methods for tubular makeup interlock

United States of America Patent

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Jun 1, 2004
Grant Date
Nov 21, 2002
app pub date
May 17, 2001
filing date
May 17, 2001

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Abstract

An apparatus and methods to prevent an operator from inadvertently dropping a string into a wellbore during assembling and disassembling of tubulars. Additionally, the apparatus and methods can be used for running in casing, running in wellbore components or for a drill string.

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Patent Owner(s)

Patent Owner	Address
WELLS FARGO BANK NATIONAL ASSOCIATION	1525 WEST W T HARRIS BLVD CHARLOTTE NC 28262

International Classification(s)

E21B:EARTH OR ROCK DRILLING

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[Patents Count]

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Haugen, David M	League City, TX	124	5569

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Apparatus and methods for tubular makeup interlock

Number of patents in Portfolio can not be more than 2000

United States of America Patent

09860127

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PATENT NO	6742596
APP PUB NO	20020170720A1
SERIAL NO	09860127
DOCKET NO

US Family Size	Non-US Coverage
Patent Longevity	Forward Citations

DATE PUBLISHED	PUBLICATION/PATENT NO.	PUBLICATION TYPE
June 01, 2004	US,6742596,B2 US6742596B2	GRANTED PATENT AS SECOND PUBLICATION
November 21, 2002	US,20020170720,A1 US20020170720A1	FIRST PUBLISHED PATENT APPLICATION

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09860127

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