Drill pipe

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 11566730
APP PUB NO 20200173584A1
SERIAL NO

16680242

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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A drill pipe comprises a drill pipe body and a tool joint that comprises a rotary shoulder connection is disclosed. The rotary shoulder connection comprises: a box connection, wherein the box connection has a box outer radius, a box counter bore radius and a box inner radius, and box threads having a box thread form cut along a box taper; a pin connection, wherein the pin connection has a pin outer radius, a pin cylinder radius and a pin nose radius, and pin threads having a pin thread form cut along a pin taper to align with the box threads inside the box connection; and a primary shoulder connection comprising: a primary box shoulder that is angled or curved; and a primary pin shoulder that is angled or curved. Methods of using the drill pipe are also disclosed.

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First Claim

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Patent Owner(s)

  • BLACK DIAMOND OILFIELD RENTALS LLC

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Biggerstaff, Christopher M Houston, US 16 24
Kibbe, Charles G New Iberia, US 19 24

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Maintenance Fees

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3.5 Year Payment $1600.00 $800.00 $400.00 Jul 31, 2026
7.5 Year Payment $3600.00 $1800.00 $900.00 Jul 31, 2030
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