Granted Patent
Utility
US 6,298,659 · App. 09/337,457
Vortex flow field and apparatus and method for producing the same
Inventors:
William H. Knuth, Martin Chiaverini, Daniel J. Gramer
Patented Case
View Patent ↗
Granted: Oct 9, 2001
Filed: Jun 21, 1999
Inventors
William H. Knuth
Martin Chiaverini
Daniel J. Gramer
Assignee (at issue)
Orbital Technologies Corporation
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.