Patents by Inventor Ivan James Samuel Lake

Ivan James Samuel Lake 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).

  • Production of alkylbenzenes
    Patent number: 4097542
    Abstract: Aromatic hydrocarbons are alkylated in the presence of zeolite nu-1 as catalyst. The invention particularly relates to the production of xylene by the methylation of toluene at temperatures in the range 300.degree. to 600.degree. C, preferably in the range from about 450.degree. to 550.degree. C.
    Type: Grant
    Filed: August 23, 1977
    Date of Patent: June 27, 1978
    Assignee: Imperial Chemical Industries Limited
    Inventor: Ivan James Samuel Lake
  • Hydrocarbon conversion processes and catalysts
    Patent number: 4094919
    Abstract: Isomerization of alkylbenzene hydrocarbons, for example xylenes, using a silica/alumina catalyst whose alumina content has been reduced by at least 1% of the original alumina content, from an original alumina content in the range 2 to 40% by weight to a content of at least 1% by weight.
    Type: Grant
    Filed: March 29, 1976
    Date of Patent: June 13, 1978
    Assignee: Imperial Chemical Industries Limited
    Inventors: Ivan James Samuel Lake, Roy John Sampson
  • Catalyst treatment
    Patent number: 3953536
    Abstract: Catalysts which comprise silica are rendered less susceptible to physical damage during processing with aqueous liquids by pre-steaming them.
    Type: Grant
    Filed: May 19, 1975
    Date of Patent: April 27, 1976
    Assignee: Imperial Chemical Industries Limited
    Inventors: Alistair Chalmers Ramsay Brown, Norman Andrew Dykes, John Kenneth January, Ivan James Samuel Lake