Polycrystalline diamond compact

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 11377910
SERIAL NO

16543607

Stats

ATTORNEY / AGENT: (SPONSORED)

Importance

Loading Importance Indicators... loading....

Abstract

See full text

A polycrystalline diamond compact including a cemented carbide substrate and a polycrystalline diamond layer bonded to the cemented carbide substrate. The polycrystalline diamond layer is nonplanar and includes a central part and a peripheral part surrounding the central part. The central part includes a protruding surface relative to the peripheral part. The protruding surface is spherical or planar. The peripheral part includes a plurality of radially-disposed ridges.

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

First Claim

See full text

Family

Loading Family data... loading....

Patent Owner(s)

Patent OwnerAddress
SF DIAMOND CO LTDNO 109 10TH STREET ECONOMIC & TECHNOLOGICAL DEVELOPMENT AREA ZHENGZHOU HENAN ZHENGZHOU 450016

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Du, Weifeng Zhengzhou, CN 19 97
Fang, Haijiang Zhengzhou, CN 19 108
Ma, Shanshan Zhengzhou, CN 6 54
Niu, Tongjian Zhengzhou, CN 6 76
Zhao, Dongpeng Zhengzhou, CN 16 90

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 Jan 5, 2026
7.5 Year Payment $3600.00 $1800.00 $900.00 Jan 5, 2030
11.5 Year Payment $7400.00 $3700.00 $1850.00 Jan 5, 2034
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