Granted Patent
Utility
US 5,085,728 · App. 07/492,886
System for controlling crystal growth apparatus and melt replenishment system therefor
Inventors:
Brian H. Mackintosh, Lawrence Eriss
Patented Case
View Patent ↗
Granted: Feb 4, 1992
Filed: Mar 12, 1990
Inventors
Brian H. Mackintosh
Lawrence Eriss
Assignee (at issue)
Mobil Solar Energy 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.