Patents by Inventor John Laurence Carey

John Laurence Carey 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).

  • Loaded ion exchange resins, their preparation and uses
    Patent number: 6197997
    Abstract: A loaded ion-exchange resin, which resin has been loaded in its shrunken form. Also a process for removing iodide compounds from a liquid carboxylic acid and/or carboxylic acid anhydride obtained from the Group VIII noble metal catalysed, alkyl iodide co-catalysed carbonylation of alcohols and/or their reactive derivatives which process comprises contacting the liquid carboxylic acid and/or carboxylic acid anhydride with a metal loaded ion-exchange resin as described above wherein the metal is one or more of the metals silver, palladium or mercury.
    Type: Grant
    Filed: July 9, 1998
    Date of Patent: March 6, 2001
    Assignee: BP Chemicals Limited
    Inventors: John Laurence Carey, Michael David Jones, Andrew David Poole
  • Process for recovering rhodium catalyst
    Patent number: 6180071
    Abstract: A process for recovery rhodium from a solution of rhodium and tar produced in the carbonylation of methanol, methyl acetate dimethyl ester and/or reactive derivatives thereof involves extraction with a combination of water, methyl iodide and methyl acetate in which methyl acetate is at least 20% of the methyl iodide plus methyl acetate.
    Type: Grant
    Filed: March 24, 1999
    Date of Patent: January 30, 2001
    Assignee: BP Chemicals Limited
    Inventors: John Laurence Carey, Michael David Jones, Gillian Mary Lancaster
  • Benzodipyrrole dyestuffs
    Patent number: 4122087
    Abstract: Substituted 2,6-dioxo-2,6-dihydrobenzo[1:2-b, 4:5-b']difurans or -dipyrroles and processes for their manufacture. The compounds are dyestuffs which are particularly useful in the form of aqueous dispersions for application to polyester textile materials.
    Type: Grant
    Filed: March 15, 1978
    Date of Patent: October 24, 1978
    Assignee: Imperial Chemical Industries Limited
    Inventors: Colin William Greenhalgh, John Laurence Carey, David Francis Newton
  • Benzodifuran dyestuffs
    Patent number: 4115404
    Abstract: Substituted 2,6-dioxo-2,6-dihydrobenzo[1:2-b, 4:5-b.sup.1 ]difurans or -dipyrroles and processes for their manufacture. The compounds are dyestuffs which are particularly useful in the form of aqueous dispersions for application to polyester textile materials.
    Type: Grant
    Filed: March 1, 1977
    Date of Patent: September 19, 1978
    Assignee: Imperial Chemical Industries Limited
    Inventors: Colin William Greenhalgh, John Laurence Carey, David Francis Newton