Modified cutters and a method of drilling with modified cutters

United States of America Patent

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Jul 20, 2010
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Jan 10, 2008
app pub date
Sep 14, 2007
filing date
Apr 30, 2004

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Abstract

A modified cutting element that includes a base portion, an ultrahard layer disposed on the base portion, and at least one modified region disposed adjacent to a cutting face of the cutter. In certain applications, the ultrahard layer includes thermally stable polycrystalline diamond.

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Patent Owner	Address
SMITH INTERNATIONAL INC	1310 RANKIN ROAD HOUSTON TX 77073

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E21B:EARTH OR ROCK DRILLING

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[Patents Count]

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Inventor Name	Address	# of filed Patents	Total Citations
Shen, Yuelin	Houston, US	110	4344
Zhang, Youhe	Tomball, US	150	4754

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Modified cutters and a method of drilling with modified cutters

Number of patents in Portfolio can not be more than 2000

United States of America Patent

11855770

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PATENT NO	7757785
APP PUB NO	20080006448A1
SERIAL NO	11855770
DOCKET NO

US Family Size	Non-US Coverage
Patent Longevity	Forward Citations

DATE PUBLISHED	PUBLICATION/PATENT NO.	PUBLICATION TYPE
July 20, 2010	US,7757785,B2 US7757785B2	GRANTED PATENT AS SECOND PUBLICATION
January 10, 2008	US,20080006448,A1 US20080006448A1	FIRST PUBLISHED PATENT APPLICATION

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11855770

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