Inventor · disambiguated record
Friedrich Lenze
Also filed as: LENZE FRIEDRICH
10 granted patents·596 citations·filing 1982–2001
92Inventor score
Top patents by PatentIndex Score
10 records- 0194US4611838AFluidtight pipe jointMANNESMANN AG·Filed 1983·Granted Sep 16, 1986·151 cites·1 claims
- 0291US5048871AScrewed pipe jointMANNESMANN AG·Filed 1989·Granted Sep 17, 1991·97 cites·11 claims
- 0387US6155613APipe jointMANNESMANN AG·Filed 1995·Granted Dec 5, 2000·80 cites·17 claims
- 0484US5394823APipeline with threaded pipes and a sleeve connecting the sameMANNESMANN AG·Filed 1993·Granted Mar 7, 1995·89 cites·12 claims
- 0579US6585299B1Pipe connectorMANNESMANN AG·Filed 1998·Granted Jul 1, 2003·53 cites·13 claims
- 0671US4414247AMethod for surface treatment of threadingMANNESMANN AG·Filed 1982·Granted Nov 8, 1983·36 cites·1 claims
- 0770US6511102B2Pipe connectorVALLOUREC MANNESMANN OIL & GAS·Filed 2001·Granted Jan 28, 2003·43 cites·24 claims
- 0855US4595219AGas tightly sealed joint in oil field tubular goodsMANNESMANN AG·Filed 1983·Granted Jun 17, 1986·23 cites·7 claims
- 0952US4955644ADrill pipe couplingMANNESMANN AG·Filed 1989·Granted Sep 11, 1990·20 cites·9 claims
- 1023US5275445AGas-tight pipe connectionMANNESMANN AG·Filed 1992·Granted Jan 4, 1994·4 cites·1 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →