Inventor · Hannover, DE

Andreas Hohl

28Patents
4h-index
34Co-inventors
59Inventor score

Filing activity: Nov 17, 2011 → Dec 21, 2022

Most-cited inventions

PatentTitleAreaCited byStatus
US9976405B2 Method to mitigate bit induced vibrations by intentionally modifying mode shapes of drill strings by mass or stiffness changes Physics 8 Active
US9394957B2 Connection of spring ends Mechanical Engineering; Lighting; Heating 4 Active
US11199242B2 Bit support assembly incorporating damper for high frequency torsional oscillation Mechanical Engineering; Lighting; Heating 4 Active
US8569928B2 Method for influencing, damping, or suppressing mechanical vibrations occurring during operation in a turbomachine blade, a turbomachine blade useful for carrying out the method, and a piezoelectric damping element Emerging Cross-Sectional Technologies 4 Active
US9435187B2 Method to predict, illustrate, and select drilling parameters to avoid severe lateral vibrations Fixed Constructions 3 Active
US10364663B2 Downhole operational modal analysis Fixed Constructions 3 Active
US11692404B2 Optimized placement of vibration damper tools through mode-shape tuning Mechanical Engineering; Lighting; Heating 3 Active
US10746013B2 Downhole test signals for identification of operational drilling parameters Mechanical Engineering; Lighting; Heating 3 Active
US11448015B2 Dampers for mitigation of downhole tool vibrations Fixed Constructions 2 Active
US10036203B2 Automated spiraling detection Physics 2 Active
US11136834B2 Dampers for mitigation of downhole tool vibrations Fixed Constructions 2 Active
US10822939B2 Normalized status variables for vibration management of drill strings Fixed Constructions 2 Active
US10830038B2 Borehole communication using vibration frequency Electricity 0 Active
US9739906B2 System and method for defining permissible borehole curvature Fixed Constructions 0 Active
US11668179B2 Drilling evaluation based on coupled torsional vibrations Fixed Constructions 0 Active
US10380280B2 Optimal storage of load data for lifetime prediction for equipment used in a well operation Physics 0 Active
US11434694B2 Automated spiraling detection Physics 0 Active
US10982526B2 Estimation of maximum load amplitudes in drilling systems independent of sensor position Physics 0 Active
US9239769B2 Method for remote maintenance of a device Electricity 0 Active
US12065922B2 Estimation of maximum load amplitudes in drilling systems using multiple independent measurements Fixed Constructions 0 Active
US11598195B2 Statistical approach to incorporate uncertainties of parameters in simulation results and stability analysis for earth drilling Fixed Constructions 0 Active
US11288418B2 Optimal storage of load data for lifetime prediction for equipment used in a well operation Physics 0 Active
US9000941B2 Alternating frequency time domain approach to calculate the forced response of drill strings Fixed Constructions 0 Active
US11021945B2 Method to mitigate bit induced vibrations by intentionally modifying mode shapes of drill strings by mass or stiffness changes Physics 0 Active
US10385615B2 Vibrationless moineau system Fixed Constructions 0 Active

Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.