Family

Loading Family data...

• 15 United States
• 10 France
• 8 Japan
• 7 China
• 5 Korea
• 2 Other

Patent Owner(s)

Patent Owner	Address
LANDMARK GRAPHICS CORPORATION	3000 N SAM HOUSTON PKWY E HOUSTON TX 77032-3219

International Classification(s)

• G06F:ELECTRIC DIGITAL DATA PROCESSING

• 2009 Application Filing Year
• G06F Class
• 34869 Applications Filed
• 24376 Patents Issued To-Date
• 69.91 % Issued To-Date

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Mitchell, Robert Franklin	Houston, US	7	13
# of filed Patents : 7 Total Citations : 13

Cited Art Landscape

Load Citation

• No Cited Art to Display

Loading Cited Art Landscape...

Patent Citation Ranking

• 1 Citation Count
• G06F Class

• 1.55 % this patent is cited more than
• 13 Age

Forward Cite Landscape

Load Citation

• No Forward Cites to Display

Loading Forward Cite Landscape...

Maintenance Fees

Fee	Large entity fee	small entity fee	micro entity fee	due date

Fee	Large entity fee	small entity fee	micro entity fee
Surcharge after expiration - Late payment is unavoidable	$700.00	$350.00	$175.00
Surcharge after expiration - Late payment is unintentional	$1,640.00	$820.00	$410.00

Full Text

US Patent Application No: 2012/0116,738

Systems And Methods For Modeling Drillstring Trajectories

---

Abstract

---

Systems and methods for modeling drillstring trajectories by calculating forces in the drillstring using a traditional torque-drag model and comparing the results with the results of the same forces calculated in the drillstring using a block tri-diagonal matrix, which determines whether the new drillstring trajectory is acceptable and represents mechanical equilibrium of drillstring forces and moments.

---

 

---

Description

---

Claims

---

Claims data not available

---

Legal Events

• No Legal Status data available.