Patents by Inventor Annie Lopez

Annie Lopez 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).

  • Stannozeosilite/zirconozeosilite zeolites and catalytic hydroxylation of phenolics therewith
    Patent number: 5399336
    Abstract: Calcined silica/oxide zeolites, characteristically MFI stannozeosilites or zirconozeosilites, well adopted for catalyzing the H.sub.2 O.sub.2 hydroxylation of phenols or phenol ethers, have the formula (I):(Si.sub.96-x T'.sub.x)0.sub.192 (I)in which x is a number ranging from 0.1 to 5.0 and T' is tetravalent tin or tetravalent zirconium.
    Type: Grant
    Filed: July 1, 1991
    Date of Patent: March 21, 1995
    Assignee: Rhone-Poulenc Chimie
    Inventors: Jean-Louis Guth, Michel Costantini, Annie Lopez, Jean-Michel Popa