Granted Patent
Utility
US 6,143,633 · App. 08/725,454
In-situ diffusion of dopant impurities during dendritic web growth of crystal ribbon
Inventor:
Balakrishnan R. Bathey
Patented Case
View Patent ↗
Granted: Nov 7, 2000
Filed: Oct 4, 1996
Inventor
Balakrishnan R. Bathey
Assignee (at issue)
Ebara Solar, Inc.
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.