Granted Patent
Utility
US 6,626,642 · App. 09/744,560
Wind turbine blade with u-shaped oscillation damping means
Inventor:
Herman F. Veldkamp
Patented Case
View Patent ↗
Granted: Sep 30, 2003
Filed: Jul 18, 2001
Inventor
Herman F. Veldkamp
Assignee (at issue)
Neg Micon A/S
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.