Drobietz; Roger

Patent Applications and Registrations

Patent applications and USPTO patent grants for Drobietz; Roger.The latest application filed is for "noise reducer for a wind turbine rotor blade having a cambered serration".

Company Profile

4.18.21

Drobietz; Roger - North Rhine-Westphalia DE
Drobietz; Roger - Rheine DE
Drobietz; Roger - Salem DE
Drobietz; Roger - Salem-Grasbeuren DE

*profile and listings may contain filings by different individuals or companies with the same name. Review application materials to confirm ownership/assignment.

Patent Activity

Patent	Date
Wind turbine noise reduction with acoustically absorbent serrations Grant 11,268,489 - Drack , et al. March 8, 2	2022-03-08
Serrated noise reducer for a wind turbine rotor blade Grant 10,767,623 - Wang , et al. Sep	2020-09-08
Noise reducer for a wind turbine rotor blade having a cambered serration Grant 10,746,157 - Wang , et al. A	2020-08-18
Noise Reducer for a Wind Turbine Rotor Blade Having a Cambered Serration App 20200072185 - Wang; Guannan ; et al.	2020-03-05
Serrated Noise Reducer for a Wind Turbine Rotor Blade App 20190316565 - Wang; Guannan ; et al.	2019-10-17
Acoustic damping system for a wind turbine tower Grant 10,408,194 - Drobietz , et al. Sept	2019-09-10
Wind Turbine Noise Reduction With Acoustically Absorbent Serrations App 20190170114 - Drack; Lorenz Edwin ; et al.	2019-06-06
Wind turbine noise reduction with acoustically absorbent serrations Grant 10,240,576 - Drack , et al.	2019-03-26
System and method for controlling the operation of wind turbines Grant 9,995,277 - Herrig , et al. June 12, 2	2018-06-12
Acoustic Damping System for a Wind Turbine Tower App 20170248127 - Drobietz; Roger ; et al.	2017-08-31
Wind Turbine Noise Reduction With Acoustically Absorbent Serrations App 20170145990 - Drack; Lorenz Edwin ; et al.	2017-05-25
System And Method For Controlling The Operation Of Wind Turbines App 20160032892 - Herrig; Andreas ; et al.	2016-02-04
Airflow Modifying Element For Suppressing Airflow Noise App 20150064003 - Drobietz; Roger	2015-03-05
Noise Reduction Tab And Method For Wind Turbine Rotor Blade App 20140093380 - Drobietz; Roger ; et al.	2014-04-03
Noise reducer for rotor blade in wind turbine Grant 8,523,515 - Drobietz , et al. September 3, 2	2013-09-03
Blade With Semi-rigid Trailing Edge App 20130164141 - Lin; Wendy Wen-Ling ; et al.	2013-06-27
Noise reducer for rotor blade in wind turbine Grant 8,430,638 - Drobietz , et al. April 30, 2	2013-04-30
Noise reducer for rotor blade in wind turbine Grant 8,267,657 - Huck , et al. September 18, 2	2012-09-18
Methods for controlling the amplitude modulation of noise generated by wind turbines Grant 8,231,344 - Kinzie , et al. July 31, 2	2012-07-31
Noise Reducer For Rotor Blade In Wind Turbine App 20120134837 - Drobietz; Roger ; et al.	2012-05-31
Methods For Controlling The Amplitude Modulation Of Noise Generated By Wind Turbines App 20120027592 - Kinzie; Kevin Wayne ; et al.	2012-02-02
Aerodynamic flap of an aircraft having a device which influences the flap vortex Grant 8,096,513 - Mau , et al. January 17, 2	2012-01-17
Noise Reducer For Rotor Blade In Wind Turbine App 20110223030 - Huck; Robert Karl ; et al.	2011-09-15
Noise reducer for rotor blade in wind turbine Grant 7,976,276 - Riddell , et al. July 12, 2	2011-07-12
Noise Reducer For Rotor Blade In Wind Turbine App 20110142666 - Drobietz; Roger ; et al.	2011-06-16
Noise Reducer For Rotor Blade In Wind Turbine App 20110142637 - Riddell; Scott Gabell ; et al.	2011-06-16
Assembly for reducing noise in turbofan engines Grant 7,819,224 - Borchers , et al. October 26, 2	2010-10-26
Method for reducing the noise of turbo engines Grant 7,758,296 - Borchers , et al. July 20, 2	2010-07-20
Permeable Acoustic Flap For Wind Turbine Blades App 20100143151 - Kinzie; Kevin W. ; et al.	2010-06-10
Aerodynamic Flap Of An Aircraft Having A Device Which Influences The Flap Vortex App 20090084905 - Mau; Knut ; et al.	2009-04-02
Assembly for Reducing Noise in Turbofan Engines App 20080308345 - Borchers; Ingo Udo ; et al.	2008-12-18
Method For Reducing The Noise Of Turbo Engines App 20070274823 - Borchers; Ingo ; et al.	2007-11-29
Process and apparatus for noise reduction in multi-engine propeller-driven aircraft Grant 6,896,219 - Borchers , et al. May 24, 2	2005-05-24
Process and apparatus for noise reduction in multi-engine propeller-driven aircraft App 20040018086 - Borchers, Ingo Udo ; et al.	2004-01-29
Noise reducing vortex generators on aircraft wing control surfaces Grant 6,491,260 - Borchers , et al. December 10, 2	2002-12-10
Noise reducing vortex generators on aircraft wing control surfaces App 20010032907 - Borchers, Ingo ; et al.	2001-10-25

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