Patents by Inventor Sean P. O'Conner

Sean P. O'Conner 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).

  • Process for the production of overbased calixarates
    Patent number: 5205946
    Abstract: Non-sulphurized overbased metal salts of sulphur-free calixarenes having a substituent hydroxyl group or groups available for reaction with metal base and their preparation are claimed. The salts are useful as additives to lubricating oils by reason of their acids neutralization capability, their detergent and their antioxidant properties.
    Type: Grant
    Filed: February 6, 1992
    Date of Patent: April 27, 1993
    Assignee: BP Chemicals (Additives) Limited
    Inventors: Stephen J. Cook, Sean P. O'Conner, Andrew Pearce