Patents by Inventor Stuart James McTavish

Stuart James McTavish 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).

  • Polymerisation catalyst
    Publication number: 20030104929
    Abstract: A nitrogen containing transition metal complex having Formula (I), 1
    Type: Application
    Filed: March 27, 2002
    Publication date: June 5, 2003
    Inventors: Stuart Jame McTavish, Marc John Payne
  • Preparation of polymerisation catalysts
    Patent number: 6548672
    Abstract: A process for producing a transition metal complex of formula (B) wherein M is Fe[II], Fe[III], Co[I], Co[II], Co[III], Mn[l], Mn[II], Mn[III], Mn(IV], Ru[II], Ru[III] or Ru[IV]; X represents an atom or group covalently or ionically bonded to the transition metal M; T is the oxidation state of the transition metal M and b is the valency of the atom or group X; R1, R2, R3, R4, R5, R6 and R7 are independently selected from hydrogen, halogen, hydrocarbyl, substituted hydrocarbyl, heterohydrocarbyl or substituted heterohydrocarbyl; and when any two or more of R1-R7 are hydrocarbyl, substituted hydrocarbyl, heterohydrocarbyl or substituted heterohydrocarbyl, the two or more can be linked to form one or more cyclic substituents; comprising reacting together in a single stage reaction components comprising (1) precursors capable of forming Ligand (B) and (2) a compound of the formula M[T]-(T/b
    Type: Grant
    Filed: September 26, 2000
    Date of Patent: April 15, 2003
    Assignee: BP Chemicals Limited
    Inventors: Vernon Charles Gibson, Stuart James McTavish