Cemented tungsten carbide with functionally designed microstructure and surface and methods for making the same

Number of patents in Portfolio can not be more than 2000

United States of America

PATENT NO 11236408
SERIAL NO

17172874

Stats

ATTORNEY / AGENT: (SPONSORED)

Importance

Loading Importance Indicators... loading....

Abstract

See full text

A method of forming a functionally designed cemented tungsten carbide can include forming a particulate matrix mixture including a primary particulate tungsten carbide and a primary particulate metal binder. A particulate enhancement mixture can be formed having a secondary particulate tungsten carbide, a secondary particulate metal binder, and a particulate grain growth inhibitor, where the enhancement mixture has a finer particle size than the matrix mixture. The particulate matrix mixture can be assembled with the particulate enhancement mixture to form a structured composite where the matrix mixture forms a continuous phase and the enhancement mixture forms at least one of a dispersed granular phase and a surface layer adjacent the continuous phase to form the structured composite. This structured composite can be sintered to form the functionally designed cemented tungsten carbide having a differential grain size with the enhancement phase having a smaller grain size than the matrix phase.

Loading the Abstract Image... loading....

First Claim

See full text

Family

Loading Family data... loading....

Patent Owner(s)

Patent OwnerAddress
UNIVERSITY OF UTAH RESEARCH FOUNDATION615 ARAPEEN DRIVE SUITE 310 SALT LAKE CITY UT 84108

International Classification(s)

  • [Classification Symbol]
  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Fang, Zhigang Zak Salt Lake City, US 21 180
Hwang, Kyu Sup Salt Lake City, US 1 0

Cited Art Landscape

Load Citation

Patent Citation Ranking

Forward Cite Landscape

Load Citation

Maintenance Fees

Fee Large entity fee small entity fee micro entity fee due date
3.5 Year Payment $1600.00 $800.00 $400.00 Aug 1, 2025
7.5 Year Payment $3600.00 $1800.00 $900.00 Aug 1, 2029
11.5 Year Payment $7400.00 $3700.00 $1850.00 Aug 1, 2033
Fee Large entity fee small entity fee micro entity fee
Surcharge - 3.5 year - Late payment within 6 months $160.00 $80.00 $40.00
Surcharge - 7.5 year - Late payment within 6 months $160.00 $80.00 $40.00
Surcharge - 11.5 year - Late payment within 6 months $160.00 $80.00 $40.00
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