Granted Patent
Utility
US 6,544,617 · App. 09/925,751
Phase-change recording element for write once applications
Inventors:
Yuan-Sheng Tyan, Thomas R. Cushman, Giuseppe Farruggia, George R. Olin, Bruno Primerano, Fridrich Vazan
Patented Case
View Patent ↗
Granted: Apr 8, 2003
Filed: Aug 9, 2001
Inventors
Yuan-Sheng Tyan
Thomas R. Cushman
Giuseppe Farruggia
George R. Olin
Bruno Primerano
Fridrich Vazan
Assignee (at issue)
EASTMAN KODAK COMPANY
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.