Inventor · disambiguated record
Clifford W. Petersen
Also filed as: PETERSEN CLIFFORD W
11 granted patents·1 pending application·551 citations·filing 1980–2002
93Inventor score
Top patents by PatentIndex Score
12 records- 0193US6264760B1Ultra-high strength, weldable steels with excellent ultra-low temperature toughnessEXXONMOBIL UPSTREAM RES CO·Filed 1998·Granted Jul 24, 2001·67 cites·40 claims
- 0291US6248191B1Method for producing ultra-high strength, weldable steels with superior toughnessEXXONMOBIL UPSTREAM RES CO·Filed 1998·Granted Jun 19, 2001·41 cites·21 claims
- 0390US6224689B1Ultra-high strength, weldable, essentially boron-free steels with superior toughnessEXXONMOBIL UPSTREAM RES CO·Filed 1998·Granted May 1, 2001·37 cites·14 claims
- 0490US4367794AAcoustically actuated downhole blowout preventerEXXON PRODUCTION RESEARCH CO·Filed 1980·Granted Jan 11, 1983·94 cites·72 claims
- 0590US4314365AAcoustic transmitter and method to produce essentially longitudinal, acoustic wavesEXXON PRODUCTION RESEARCH CO·Filed 1980·Granted Feb 2, 1982·144 cites·2 claims
- 0688US6245290B1High-tensile-strength steel and method of manufacturing the sameEXXONMOBIL UPSTREAM RES CO·Filed 1998·Granted Jun 12, 2001·52 cites·13 claims
- 0788US6228183B1Ultra-high strength, weldable, boron-containing steels with superior toughnessEXXONMOBIL UPSTREAM RES CO·Filed 1998·Granted May 8, 2001·44 cites·15 claims
- 0882US7048810B2Method of manufacturing hot formed high strength steelEXXONMOBIL UPSTREAM RES CO·Filed 2002·Granted May 23, 2006·14 cites·19 claims
- 0975US4739273AApparatus for detecting substantially longitudinal flaws in the end area of a tubular member using magnetic excitation and a scanning sensorEXXON PRODUCTION RESEARCH CO·Filed 1984·Granted Apr 19, 1988·31 cites·26 claims
- 1065US4503393AMethod and apparatus for detecting flaws in the threaded end of an elongate member using electromagnetic excitation and an automated scanning sensorEXXON PRODUCTION RESEARCH CO·Filed 1981·Granted Mar 5, 1985·23 cites·26 claims
- 1144US6852175B2High strength marine structuresEXXONMOBIL UPSTREAM RES CO·Filed 2002·Granted Feb 8, 2005·4 cites·3 claims
- 1235US2002134452A1Methods of girth welding high strength steel pipes to achieve pipeling crack arrestabilityFiled 2002·Application pending·0 cites
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