Inventor · disambiguated record
Manfred Jansch
Also filed as: JAENSCH MANFRED · JANSCH MANFRED
15 granted patents·536 citations·filing 1987–2006
94Inventor score
Files withWEATHERFORD LAMB10WEATHERFORD OIL TOOL2JANSCH MANFRED1WEATHERFORD PROD & EQUIP1WEATHERFORD UK LTD1
Top patents by PatentIndex Score
15 records- 0189US5451084AInsert for use in slipsWEATHERFORD LAMB·Filed 1993·Granted Sep 19, 1995·117 cites·34 claims
- 0288US5221099ADevice for conducting forces into movable objectsWEATHERFORD PROD & EQUIP·Filed 1991·Granted Jun 22, 1993·73 cites·18 claims
- 0385US5261488ACentralizers for oil well casingsWEATHERFORD UK LTD·Filed 1991·Granted Nov 16, 1993·136 cites·29 claims
- 0480US7114235B2Automated pipe joining system and methodWEATHERFORD LAMB·Filed 2002·Granted Oct 3, 2006·71 cites·34 claims
- 0575US4876884AApparatus for testing the gas-tightness of joints between hollow bodiesWEATHERFORD OIL TOOL·Filed 1987·Granted Oct 31, 1989·31 cites·6 claims
- 0658US6443458B1PackerWEATHERFORD LAMB·Filed 1998·Granted Sep 3, 2002·19 cites·20 claims
- 0754US4753108AApparatus for testing connections between pieces of piping for impermeability to gasesWEATHERFORD OIL TOOL·Filed 1987·Granted Jun 28, 1988·17 cites·10 claims
- 0853US6026675AMethod and apparatus for testing threaded joints and threaded membersWEATHERFORD LAMB·Filed 1996·Granted Feb 22, 2000·17 cites·5 claims
- 0949US5255559AApparatus for testing the gas-tightness of a joint between hollow membersWEATHERFORD LAMB·Filed 1992·Granted Oct 26, 1993·14 cites·19 claims
- 1043US7124828B2Apparatus for retaining two strings of tubularsWEATHERFORD LAMB·Filed 2002·Granted Oct 24, 2006·4 cites·92 claims
- 1142US7673691B2Apparatus for retaining two strings of tubularsWEATHERFORD LAMB·Filed 2006·Granted Mar 9, 2010·0 cites·25 claims
- 1241US4838073AMethod and apparatus for detecting leaksJANSCH MANFRED·Filed 1988·Granted Jun 13, 1989·10 cites·14 claims
- 1340US6422311B1Apparatus for retaining two strings of tubularsWEATHERFORD LAMB·Filed 1998·Granted Jul 23, 2002·12 cites·19 claims
- 1438US6848520B1Bushing for a drilling rigWEATHERFORD LAMB·Filed 2000·Granted Feb 1, 2005·1 cites·14 claims
- 1535US6386282B1Safety switching system for clamping devices for pipesWEATHERFORD LAMB·Filed 1998·Granted May 14, 2002·14 cites·12 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →