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Sebastian Walzel
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Unna, DE
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Patents Grants
last 30 patents
Information
Patent Grant
Method for operating a vacuum pump system
Patent number
11,719,231
Issue date
Aug 8, 2023
LEYBOLD GMBH
Matthias Nahrwold
F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information
Patent Grant
Vacuum pump drive with star-delta switchover
Patent number
10,931,218
Issue date
Feb 23, 2021
LEYBOLD GMBH
Sebastian Walzel
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Device and method for driving a vacuum pump
Patent number
10,648,474
Issue date
May 12, 2020
Leyold GmbH
Markus Liessmann
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Patents Applications
last 30 patents
Information
Patent Application
METHOD FOR OPERATING A VACUUM PUMP SYSTEM
Publication number
20210381499
Publication date
Dec 9, 2021
Leybold GmbH
Matthias Nahrwold
F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information
Patent Application
DEVICE AND METHOD FOR DRIVING A VACUUM PUMP
Publication number
20190301469
Publication date
Oct 3, 2019
Leybold GmbH
Markus Liessmann
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Application
Vacuum Pump Drive Having Two Frequency Converters
Publication number
20190028051
Publication date
Jan 24, 2019
Leybold GmbH
Sebastian Walzel
F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information
Patent Application
VACUUM PUMP DRIVE WITH STAR-DELTA SWITCHOVER
Publication number
20180367082
Publication date
Dec 20, 2018
Leybold GmbH
Sebastian Walzel
F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...