Granted Patent
Utility
US 6,238,847 · App. 08/951,411
Laser marking method and apparatus
Inventors:
Enos A. Axtell, III, David C. Kapp, Timothy Alan Knell, Miroslav Novotny, George E. Sakoske
Patented Case
View Patent ↗
Granted: May 29, 2001
Filed: Oct 16, 1997
Inventors
Enos A. Axtell, III
David C. Kapp
Timothy Alan Knell
Miroslav Novotny
George E. Sakoske
Assignee (at issue)
DMC Degussa Metals Catalysts Cerdec AG
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.