Inventor · disambiguated record
Holger Freitag
Also filed as: FREITAG HOLGER
15 granted patents·1 pending application·133 citations·filing 1995–2024
92Inventor score
Top patents by PatentIndex Score
16 records- 0179US11208301B2Control switch, control system and method for operating a craneKONECRANES GLOBAL CORP·Filed 2018·Granted Dec 28, 2021·3 cites·16 claims
- 0279US10202264B2Cable winchKONECRANES GLOBAL CORP·Filed 2016·Granted Feb 12, 2019·3 cites·20 claims
- 0377US5632469AElectric hoist with speed control, a protective housing and a swivelable circuit board in the housingMANNESMANN AG·Filed 1995·Granted May 27, 1997·42 cites·10 claims
- 0474US9643322B2Control method for a balancing lifting gear and balancing lifting gearDEMAG CRANES & COMPONENTS GMBH·Filed 2013·Granted May 9, 2017·5 cites·19 claims
- 0572US5818185AProcess and device for monitoring and controlling the speed of rotation of an electric drive with frequency converter for hoisting gearsMANNESMANN AG·Filed 1995·Granted Oct 6, 1998·28 cites·9 claims
- 0671US6972385B2Operating device for manual actuation of hoisting equipmentDEMAG CRANES & COMPONENTS GMBH·Filed 2004·Granted Dec 6, 2005·17 cites·31 claims
- 0761US12441590B2Method for controlling a load-handling crane, and load-handling craneKONECRANES GLOBAL CORP·Filed 2024·Granted Oct 14, 2025·0 cites·14 claims
- 0861US9385523B2Circuit arrangement having an emergency stop switch of a hoistFREITAG HOLGER·Filed 2011·Granted Jul 5, 2016·2 cites·20 claims
- 0954US5813124AAngle measuring deviceMANNESMANN AG·Filed 1996·Granted Sep 29, 1998·17 cites·4 claims
- 1053USD875690SControl switchKONECRANES GLOBAL CORP·Filed 2018·Granted Feb 18, 2020·6 cites·1 claims
- 1152US7497303B2Method for setting the parameters of motor control systems of hoisting equipmentDEMAG CRANES & COMPONENTS GMBH·Filed 2005·Granted Mar 3, 2009·2 cites·33 claims
- 1249US7504602B2Suspended control deviceDEMAG CRANES & COMPONENTS GMBH·Filed 2003·Granted Mar 17, 2009·3 cites·28 claims
- 1348US7422542B2Method of monitoring a chain pulley block and chain pulley block apparatusDEMAG CRANES & COMPONENTS GMBH·Filed 2004·Granted Sep 9, 2008·2 cites·18 claims
- 1441US7068009B2Drive arrangement, especially for a lifting mechanism and/or a traveling driveDEMAG CRANES & COMPONENTS GMBH·Filed 2004·Granted Jun 27, 2006·3 cites·30 claims
- 1540US2021188600A1System for operating a load-handling crane, and load-handling crane and method for operating sameKONECRANES GLOBAL CORP·Filed 2018·Application pending·0 cites
- 1634US7126307B2Interface circuit for actuating an electrical device and circuit arrangement for actuating an electric motor therewithDEMAG CRANES & COMPONENTS GMBH·Filed 2004·Granted Oct 24, 2006·0 cites·21 claims
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