Assignee
HYDAC TECHNOLOGY GMBH
DE·95 granted patents·26 pending applications·924 citations·filing 1989–2025
Top patents by PatentIndex Score
121 records- 0196US7322377B2Hydraulic accumulatorHYDAC TECHNOLOGY GMBH·Filed 2003·Granted Jan 29, 2008·59 cites·7 claims
- 0294US5427152AHydraulic accumulator with dividing wall supported by connecting and retaining partsHYDAC TECHNOLOGY GMBH·Filed 1994·Granted Jun 27, 1995·54 cites·23 claims
- 0390US5085384APower line attachment systemHYDAC TECHNOLOGY GMBH·Filed 1990·Granted Feb 4, 1992·95 cites·22 claims
- 0488US6857450B2Hydropneumatic pressure reservoirHYDAC TECHNOLOGY GMBH·Filed 2002·Granted Feb 22, 2005·45 cites·13 claims
- 0588US6527012B1Hydropneumatic pressure accumulatorHYDAC TECHNOLOGY GMBH·Filed 2000·Granted Mar 4, 2003·28 cites·6 claims
- 0686US6622755B2Hydropneumatic accumulatorHYDAC TECHNOLOGY GMBH·Filed 2001·Granted Sep 23, 2003·25 cites·6 claims
- 0786US5477677AEnergy recovery deviceHYDAC TECHNOLOGY GMBH·Filed 1992·Granted Dec 26, 1995·91 cites·13 claims
- 0885US10532527B2Method for the production of a bladder accumulator and bladder accumulator produced according to said methodHYDAC TECHNOLOGY GMBH·Filed 2016·Granted Jan 14, 2020·3 cites·16 claims
- 0984US6866066B2Hydraulic accumulatorHYDAC TECHNOLOGY GMBH·Filed 2001·Granted Mar 15, 2005·19 cites·9 claims
- 1083US6923215B2Piston-type accumulatorHYDAC TECHNOLOGY GMBH·Filed 2002·Granted Aug 2, 2005·21 cites·8 claims
- 1181US11092288B2Method for producing pressure vesselsHYDAC TECHNOLOGY GMBH·Filed 2016·Granted Aug 17, 2021·1 cites·10 claims
- 1280US10458445B2Device for relieving pressure in hydraulics linesHYDAC TECHNOLOGY GMBH·Filed 2015·Granted Oct 29, 2019·3 cites·21 claims
- 1380US7959027B2Pressurized containerHYDAC TECHNOLOGY GMBH·Filed 2006·Granted Jun 14, 2011·10 cites·10 claims
- 1480US7891181B2Hydraulic unitHYDAC TECHNOLOGY GMBH·Filed 2006·Granted Feb 22, 2011·9 cites·9 claims
- 1580US6266959B1Device for saving energyHYDAC TECHNOLOGY GMBH·Filed 1997·Granted Jul 31, 2001·47 cites·9 claims
- 1678US7637285B2Hydraulic accumulatorHYDAC TECHNOLOGY GMBH·Filed 2006·Granted Dec 29, 2009·8 cites·19 claims
- 1777US6901965B2Hydropneumatic accumulatorHYDAC TECHNOLOGY GMBH·Filed 2002·Granted Jun 7, 2005·17 cites·12 claims
- 1876US10465832B2Damping deviceHYDAC TECHNOLOGY GMBH·Filed 2015·Granted Nov 5, 2019·3 cites·16 claims
- 1975US6484756B1Hydraulic accumulator, especially a hydraulic damperHYDAC TECHNOLOGY GMBH·Filed 2000·Granted Nov 26, 2002·15 cites·14 claims
- 2074US6758096B1Method for monitoring the gas prefill pressure in hydraulic accumulatorsHYDAC TECHNOLOGY GMBH·Filed 2000·Granted Jul 6, 2004·18 cites·10 claims
- 2173US12383911B2Hydraulic accumulatorHYDAC TECHNOLOGY GMBH·Filed 2022·Granted Aug 12, 2025·0 cites·20 claims
- 2273US7516760B2Piston-type accumulatorHYDAC TECHNOLOGY GMBH·Filed 2004·Granted Apr 14, 2009·13 cites·13 claims
- 2372US6789577B2Hydropneumatic pressure accumulatorHYDAC TECHNOLOGY GMBH·Filed 2002·Granted Sep 14, 2004·13 cites·16 claims
- 2471US4995586ASolenoid valveHYDAC TECHNOLOGY GMBH·Filed 1989·Granted Feb 26, 1991·23 cites·19 claims
- 2570US11268541B2Pressure accumulator having a monitoring deviceHYDAC TECHNOLOGY GMBH·Filed 2019·Granted Mar 8, 2022·1 cites·20 claims
- 2670US5865028AEnergy recovery deviceHYDAC TECHNOLOGY GMBH·Filed 1995·Granted Feb 2, 1999·24 cites·22 claims
- 2769US4922944AMelting safety device for gas system of hydropneumatic pressure accumulatorsHYDAC TECHNOLOGY GMBH·Filed 1989·Granted May 8, 1990·24 cites·5 claims
- 2868US10648487B2Accumulator device and hydropneumatic suspensionHYDAC TECHNOLOGY GMBH·Filed 2017·Granted May 12, 2020·1 cites·8 claims
- 2968US5782612AHydraulic gas compressorHYDAC TECHNOLOGY GMBH·Filed 1994·Granted Jul 21, 1998·39 cites·22 claims
- 3067US12331760B2Hydraulic accumulatorHYDAC TECHNOLOGY GMBH·Filed 2022·Granted Jun 17, 2025·0 cites·25 claims
- 3167US12241482B2Piston accumulatorHYDAC TECHNOLOGY GMBH·Filed 2022·Granted Mar 4, 2025·0 cites·9 claims
- 3267US10697475B2Safety deviceHYDAC TECHNOLOGY GMBH·Filed 2016·Granted Jun 30, 2020·1 cites·10 claims
- 3367US10584759B2Bellows accumulator, in particular pulsation damperHYDAC TECHNOLOGY GMBH·Filed 2016·Granted Mar 10, 2020·1 cites·12 claims
- 3466US11480198B2Damping deviceHYDAC TECHNOLOGY GMBH·Filed 2019·Granted Oct 25, 2022·1 cites·17 claims
- 3565US10378564B2Damping deviceHYDAC TECHNOLOGY GMBH·Filed 2016·Granted Aug 13, 2019·1 cites·16 claims
- 3665US10145390B2Pressure accumulatorHYDAC TECHNOLOGY GMBH·Filed 2014·Granted Dec 4, 2018·1 cites·8 claims
- 3765US2025389283A1Separator and Hydraulic Accumulator Having Such a SeparatorHYDAC TECHNOLOGY GMBH·Filed 2025·Application pending·0 cites
- 3863US7234490B2Hydraulic accumulator comprising a position indicatorHYDAC TECHNOLOGY GMBH·Filed 2004·Granted Jun 26, 2007·11 cites·8 claims
- 3962US9644644B2Hydraulic accumulator in form of a bellows accumulatorHYDAC TECHNOLOGY GMBH·Filed 2012·Granted May 9, 2017·1 cites·12 claims
- 4062US7857006B2Pressure accumulator, especially pulsation damperHYDAC TECHNOLOGY GMBH·Filed 2005·Granted Dec 28, 2010·4 cites·11 claims
- 4162US7066208B2Hydraulic accumulatorHYDAC TECHNOLOGY GMBH·Filed 2003·Granted Jun 27, 2006·10 cites·13 claims
- 4262US2025198427A1Piston AccumulatorHYDAC TECHNOLOGY GMBH·Filed 2023·Application pending·0 cites
- 4362US2024035490A1Hydraulic AccumulatorHYDAC TECHNOLOGY GMBH·Filed 2022·Application pending·0 cites
- 4461US12553430B2Conveying deviceHYDAC TECHNOLOGY GMBH·Filed 2022·Granted Feb 17, 2026·0 cites·21 claims
- 4561US10330124B2Accumulator deviceHYDAC TECHNOLOGY GMBH·Filed 2014·Granted Jun 25, 2019·1 cites·13 claims
- 4659US10024478B2Damping deviceHYDAC TECHNOLOGY GMBH·Filed 2015·Granted Jul 17, 2018·1 cites·25 claims
- 4759US6871671B2HydroaccumulatorHYDAC TECHNOLOGY GMBH·Filed 2003·Granted Mar 29, 2005·7 cites·27 claims
- 4859US2019009335A1Method for producing wall parts of a housing for pressure vesselsHYDAC TECHNOLOGY GMBH·Filed 2016·Application pending·0 cites
- 4958US11781569B2Bellows accumulatorHYDAC TECHNOLOGY GMBH·Filed 2019·Granted Oct 10, 2023·0 cites·11 claims
- 5058US7308910B2Device for damping pressure surgesHYDAC TECHNOLOGY GMBH·Filed 2004·Granted Dec 18, 2007·7 cites·16 claims
Showing the top 50 of 121 patent records by PatentIndex Score.
Join the waitlist — get patent alerts
Get an alert when HYDAC TECHNOLOGY GMBH files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →