Georg ZIMBELMANN

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Lehrte, DE

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Patents Grantslast 30 patents

Information Patent Grant
Spider load indicator
- Patent number 11,970,915
- Issue date Apr 30, 2024
- Weatherford Technology Holdings, LLC
- Martin Liess
- E21 - EARTH DRILLING MINING
Information Patent Grant
Apparatus and methods for tong operation
- Patent number 10,822,893
- Issue date Nov 3, 2020
- Weatherford Technology Holdings, LLC
- Georg Zimbelmann
- E21 - EARTH DRILLING MINING
Information Patent Grant
Apparatus and methods for tong operation
- Patent number 10,472,906
- Issue date Nov 12, 2019
- Weatherford Technology Holdings, LLC
- Georg Zimbelmann
- E21 - EARTH DRILLING MINING
Information Patent Grant
Movable tong assembly
- Patent number 10,337,264
- Issue date Jul 2, 2019
- Jan Rothe
- E21 - EARTH DRILLING MINING

Patents Applicationslast 30 patents

Information Patent Application
SPIDER LOAD INDICATOR
- Publication number 20240011360
- Publication date Jan 11, 2024
- Weatherford Technology Holdings, LLC.
- Martin LIESS
- E21 - EARTH DRILLING MINING
Information Patent Application
APPARATUS AND METHODS FOR TONG OPERATION
- Publication number 20200072002
- Publication date Mar 5, 2020
- Weatherford Technology Holdings, LLC.
- Georg Zimbelmann
- E21 - EARTH DRILLING MINING
Information Patent Application
APPARATUS AND METHODS FOR TONG OPERATION
- Publication number 20190055796
- Publication date Feb 21, 2019
- Weatherford Technology Holdings, LLC.
- Georg Zimbelmann
- E21 - EARTH DRILLING MINING
Information Patent Application
MOVABLE TONG ASSEMBLY
- Publication number 20180142524
- Publication date May 24, 2018
- Weatherford Technology Holdings, LLC.
- Jan ROTHE
- E21 - EARTH DRILLING MINING