Granted Patent
Utility
US 5,276,547 · App. 07/814,797
Electrochromic element, materials for use in such element, processes for making such element and such materials and use of such element in an electrochromic glass device
Inventors:
Jean Paul Couput, Guy Campet, Jean-Michel Chabagno, Daniel Muller, Maurice Bourrel, Ryan R. Dirkx, Didier Ferry, Regine Garie, Claude Delmas
Patented Case
View Patent ↗
Granted: Jan 4, 1994
Filed: Dec 31, 1991
Inventors
Jean Paul Couput
Guy Campet
Jean-Michel Chabagno
Daniel Muller
Maurice Bourrel
Ryan R. Dirkx
Didier Ferry
Regine Garie
Claude Delmas
Assignees (at issue)
Elf Atochem North America, Inc.
Societe Nationale Elf Aquitaine
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.