首页
产品
黄页
商标
征信
会员服务
注册
登录
全部
|
企业名
|
法人/股东/高管
|
品牌/产品
|
地址
|
经营范围
发明名称
DRILLING MUD
摘要
申请公布号
EP1274809(A2)
申请公布日期
2003.01.15
申请号
EP20010943270
申请日期
2001.04.19
申请人
SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ B.V.
发明人
ALBRECHT, MICHELE, SCOTT;COWAN, KENNETH, MICHAEL;MCNEIL, ROBERT, IRVING, III;VAN OORT, ERIC;ROCK, RONALD, LEE, SR.
分类号
C09K8/04;C09K8/14;C09K8/20;C09K8/22;(IPC1-7):C09K7/02
主分类号
C09K8/04
代理机构
代理人
主权项
地址
您可能感兴趣的专利
AZATHIABICYCLOHEPTANE DERIVATIVES
DEVICE FOR AUTOMATICALLY OPENING*CLOSING ROD HOLDER AND CHUCK OF DRILLING MACHINE IN CONNECTION WITH EACH OTHER
TRENCH DIGGING DEVICE
SHACKLE FOR CHAIN
TONARM
WATERRINTAKE DEVICE FOR MARINE STRUCTURE
PROFILLISTE TIL DAEKNING AF EN DOERSPALTE
MEASURING UNIT OF DISCHARGE AMOUNT OF WATER
METHOD OF PREVENTING WATER LEAKAGE THROUGH WOODEN CON HOLE
ANORDNING FOR DISTRIBUTION AV MALTIDER
HIGH SILICON STEEL THIN STRIP AND ITS PREPARATION
RECORDING METHOD
METHOD OF PRODUCING XXRAY MASK
MEASURING UNIT
METHOD OF STICKING ROAD MARK
MEASURING SENSOR FOR HYDROGEN SULFIDE
HYDROSTATIC POWER TRANSMISSION
POWER TRANSMISSION FOR VESSEL DRIVING TWO PAIRED PROPELLER
LIGHT DEFLECTOR
SPRING ADJUSTING DEVICE OF SHOCK ABSORBER