Granted Patent
Utility
US 5,686,369 · App. 08/467,301
Method and apparatus for treating dehydrogenation catalysts
Inventors:
Shiou-Shan Chen, Shyh-Yuan H. Hwang, Slawomir A. Oleksy, Sanjeev Ram
Patented Case
View Patent ↗
Granted: Nov 11, 1997
Filed: Jun 6, 1995
Inventors
Shiou-Shan Chen
Shyh-Yuan H. Hwang
Slawomir A. Oleksy
Sanjeev Ram
Assignee (at issue)
Raytheon Engineers & Constructors, Inc.
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.