发明名称 Cutting elements and bits incorporating the same
摘要 Cutting elements and bits incorporating such cutting elements are provided. The cutting elements include a substrate having an interface surface over which is formed an ultra hard material layer. A plurality of lands are formed on the interface surface. A plurality of depressions are formed on the lands.
申请公布号 US7287610(B2) 申请公布日期 2007.10.30
申请号 US20040954122 申请日期 2004.09.29
申请人 SMITH INTERNATIONAL, INC. 发明人 SVENDSEN ZAN;SHEN YUELIN;ZHANG YOUHE
分类号 E21B10/36;E21B10/573 主分类号 E21B10/36
代理机构 代理人
主权项
地址
您可能感兴趣的专利