IP Library › Granted Patent US 5,993,545
Granted Patent Utility
US 5,993,545 · App. 09/005,327

Crucible for growing single crystals, process for making the same and use of the same

Inventors: David Francis Lupton, Jorg Schielke, Manfred Weigelt, Klaus Petermann, Eric Mix, Livio Fornasiero
Patented Case View Patent ↗
Granted: Nov 30, 1999 Filed: Jan 9, 1998
Inventors
David Francis Lupton
Jorg Schielke
Manfred Weigelt
Klaus Petermann
Eric Mix
Livio Fornasiero
Assignee (at issue)
W.C. Heraeus GmbH & Co. KG

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.

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Quick Facts
Patent No.
US 5,993,545
App. No.
09/005,327
Filed
1998-01-09
Granted
1999-11-30
Kind
A