Appeal No. 1998-0801 Application No. 08/557,979 ) ) INTERFERENCES ) CHARLES E. FRANKFORT ) Administrative Patent Judge ) CEF:lmb Y GRACE TSANG SHELL OIL COMPANY INTELLECTUAL PROPERTY P.O. BOX 2463 HOUSTON, TX 77252-2463 7Page: Previous 1 2 3 4 5 6 7Last modified: November 3, 2007