Patents by Inventor Roger P.-E. Salvin

Roger P.-E. Salvin has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Iron (II) metallocene salts
    Patent number: 5371259
    Abstract: Compounds of the formula I are described[R.sup.1 (Fe.sup.II R.sup.2 .sub.a ].sub.q.sup.+an anX.sup.-q (I)in which a is 1 or 2, n is 1 or 2, R.sup.1 is a substituted or unsubstituted .pi.-arene, R.sup.2 is a substituted or unsubstituted .pi.-arene or cyclopentadienyl anion or indenyl anion, q is an integer from 1 to 3, and X is FSO.sup.-.sub.3 or a q-valent anion of an organic sulfonic acid or of a carbocyclic acid; R.sup.1 can also be a polymeric, aromatic ligand. The invetion particularly relates to the compounds of the formula I wherein a is 1 and q is 1 and X.sup.
    Type: Grant
    Filed: April 8, 1993
    Date of Patent: December 6, 1994
    Assignee: Ciba-Geigy Corporation
    Inventors: Kurt Meier, Roger P.-E. Salvin