Granted Patent
Utility
US 5,804,663 · App. 08/614,564
Radiation sensitive vinyl aromatic block copolymers and compositions containing them
Inventors:
Luc Ives Jaak De Craene, Martine Dupont, Noel Raymond Maurice De Keyzer, Karin Marie-Louise Renee Morren, Jeroen Van Westrenen
Patented Case
View Patent ↗
Granted: Sep 8, 1998
Filed: Mar 13, 1996
Inventors
Luc Ives Jaak De Craene
Martine Dupont
Noel Raymond Maurice De Keyzer
Karin Marie-Louise Renee Morren
Jeroen Van Westrenen
Assignee (at issue)
SHELL OIL COMPANY
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.