Assignee
BUTZBACHER WEICHENBAU GMBH
DE·28 granted patents·229 citations·filing 1988–2005
Top patents by PatentIndex Score
28 records- 0194US7648080B2Rail fixing deviceBUTZBACHER WEICHENBAU GMBH·Filed 2005·Granted Jan 19, 2010·25 cites·25 claims
- 0277US5590833AExpansion joint for part of a railway trackBUTZBACHER WEICHENBAU GMBH·Filed 1993·Granted Jan 7, 1997·21 cites·8 claims
- 0371US6543728B1Cross frogBUTZBACHER WEICHENBAU GMBH·Filed 2000·Granted Apr 8, 2003·9 cites·13 claims
- 0470US8033480B2Arrangement for fastening railroad rails to a sleeperBUTZBACHER WEICHENBAU GMBH·Filed 2005·Granted Oct 11, 2011·4 cites·20 claims
- 0570US6177205B1Process for producing a permanent way component and such a componentBUTZBACHER WEICHENBAU GMBH·Filed 1997·Granted Jan 23, 2001·19 cites·18 claims
- 0664US5390881ARoller assembly for a switch tongue used with a stock railBUTZBACHER WEICHENBAU GMBH·Filed 1993·Granted Feb 21, 1995·16 cites·7 claims
- 0757US6409092B1Superstructure constructionBUTZBACHER WEICHENBAU GMBH·Filed 2000·Granted Jun 25, 2002·4 cites·17 claims
- 0855US5195703ADevice for locking a switch blade with a stock railBUTZBACHER WEICHENBAU GMBH·Filed 1991·Granted Mar 23, 1993·17 cites·13 claims
- 0948US6860433B2Bearing for a section of a trackBUTZBACHER WEICHENBAU GMBH·Filed 2001·Granted Mar 1, 2005·3 cites·10 claims
- 1047US5605281ARail support systemBUTZBACHER WEICHENBAU GMBH·Filed 1993·Granted Feb 25, 1997·9 cites·12 claims
- 1146US7309050B2Grooved rail core pieceBUTZBACHER WEICHENBAU GMBH·Filed 2004·Granted Dec 18, 2007·3 cites·14 claims
- 1246US5522570ARail sectionBUTZBACHER WEICHENBAU GMBH·Filed 1993·Granted Jun 4, 1996·9 cites·20 claims
- 1344US6068196AExpansion joint for part of a railway trackBUTZBACHER WEICHENBAU GMBH·Filed 1996·Granted May 30, 2000·13 cites·20 claims
- 1444US6027034ASuperstructure constructionBUTZBACHER WEICHENBAU GMBH·Filed 1996·Granted Feb 22, 2000·14 cites·6 claims
- 1542US5482576ARailway-track elements and method of manufacturing themBUTZBACHER WEICHENBAU GMBH·Filed 1994·Granted Jan 9, 1996·7 cites·17 claims
- 1640US4925135AArrangement for controlled guidance of a wheel axle or of a bogie of a rail vehicle passing over pointsBUTZBACHER WEICHENBAU GMBH·Filed 1988·Granted May 15, 1990·12 cites·12 claims
- 1738US5645216ABearing for a part of a railroad trackBUTZBACHER WEICHENBAU GMBH·Filed 1993·Granted Jul 8, 1997·6 cites·21 claims
- 1838US5222700ADevice for locking a switch bladeBUTZBACHER WEICHENBAU GMBH·Filed 1991·Granted Jun 29, 1993·7 cites·14 claims
- 1938US5158414ARail attaching device permitting longitudinal rail displacementBUTZBACHER WEICHENBAU GMBH·Filed 1991·Granted Oct 27, 1992·6 cites·14 claims
- 2037US5451018ARailway tongue and rail junctureBUTZBACHER WEICHENBAU GMBH·Filed 1993·Granted Sep 19, 1995·7 cites·11 claims
- 2131US5582108ARail junctionBUTZBACHER WEICHENBAU GMBH·Filed 1995·Granted Dec 10, 1996·5 cites·6 claims
- 2231US5295624AContact surfaces of a track part and railway wheelBUTZBACHER WEICHENBAU GMBH·Filed 1992·Granted Mar 22, 1994·4 cites·13 claims
- 2328US6527231B2Superstructure points deviceBUTZBACHER WEICHENBAU GMBH·Filed 2001·Granted Mar 4, 2003·0 cites·23 claims
- 2428US6315844B1Method for producing high-strength track element and track element thus obtainedBUTZBACHER WEICHENBAU GMBH·Filed 1998·Granted Nov 13, 2001·3 cites·10 claims
- 2528US6062144AMethod and means for the elastic bending of a support for a flexible switchBUTZBACHER WEICHENBAU GMBH·Filed 1995·Granted May 16, 2000·3 cites·10 claims
- 2627US5647280ARail line, in particular for a high-speed magnetic trainBUTZBACHER WEICHENBAU GMBH·Filed 1995·Granted Jul 15, 1997·2 cites·5 claims
- 2724US6270018B1Track or method for aligning a rail track sectionBUTZBACHER WEICHENBAU GMBH·Filed 1998·Granted Aug 7, 2001·0 cites·12 claims
- 2812US5222662AProcedure for installation, stable with respect to gage distance, of at least three tracks lying closely spaced to one anotherBUTZBACHER WEICHENBAU GMBH·Filed 1991·Granted Jun 29, 1993·1 cites·3 claims
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