Granted Patent
Utility
US 6,402,805 · App. 09/501,722
Method for an improved energy input into a scrap bulk
Inventors:
Daniel Deloche, Karl Brotzmann
Patented Case
View Patent ↗
Granted: Jun 11, 2002
Filed: Feb 10, 2000
Inventors
Daniel Deloche
Karl Brotzmann
Assignee (at issue)
L'Air Liquide, Société Anonyme à Directoire et Conseil de Surveillance pour l'Étude et l'Exploitation des Procédés Georges Claude
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.