Granted Patent
Utility
US 6,509,559 · App. 09/598,069
Binary optical grating and method for generating a moire pattern for 3D imaging
Inventors:
Franz W. Ulrich, John Y. Ma, Darcy J. Hart
Patented Case
View Patent ↗
Granted: Jan 21, 2003
Filed: Jun 20, 2000
Inventors
Franz W. Ulrich
John Y. Ma
Darcy J. Hart
Assignee (at issue)
PPT Vision
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.