Granted Patent
Utility
US 6,034,170 · App. 09/170,549
Solutions of fluoropolymers in carbon dioxide
Inventors:
William H. Tuminello, Mark A. McHugh, Robert Clayton Wheland, Gregory T. Dee
Patented Case
View Patent ↗
Granted: Mar 7, 2000
Filed: Oct 13, 1998
Inventors
William H. Tuminello
Mark A. McHugh
Robert Clayton Wheland
Gregory T. Dee
Assignees (at issue)
E.I. DU PONT DE NEMOURS AND COMPANY
The Johns Hopkins University
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.