Patents by Inventor Neville Tyreman

Neville Tyreman 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).

  • Preparation of isothiazolinones from disulphides and disulphides from isothiazolinones
    Patent number: 5315009
    Abstract: A compound of the formula ##STR1## in which R.sup.1 and R.sup.2 taken together, and R.sup.3 and R.sup.4 taken together, independently represent a polymethylene chain leaving 3 or 4 carbon atoms, or a polymethylene chain having 3 or 4 carbon atoms substituted by at least one lower alkyl radical having from 1 to 4 carbon atoms and R.sup.5 to R.sup.8 are independently hydrogen, hydrocarbyl or substituted hydrocarbyl. Typically R.sup.1 and R.sup.2 and also R.sup.3 and R.sup.4 complete a trimethylene ring, R.sup.5 and R.sup.7 are each hydrogen and R.sup.6 and R.sup.8 are alkyl such as methyl. The compounds have microbiological activity.
    Type: Grant
    Filed: March 15, 1993
    Date of Patent: May 24, 1994
    Assignee: Imperial Chemical Industries PLC
    Inventors: Peter W. Austin, Neville Tyreman
  • Sulfur containing diamides and antimicrobial use
    Patent number: 5224980
    Abstract: A compound of the formula ##STR1## in which R.sup.1 and R.sup.2 taken together, and R.sup.3 and R.sup.4 taken together, independently represent a polymethylene chain having 3 or 4 carbon atoms, or a polymethylene chain having 3 or 4 carbon atoms substituted by at least one lower alkyl radical having from 1 to 4 carbon atoms, and R.sup.5 to R.sup.8 are independently hydrogen, hydrocarbyl or substituted hydrocarbyl. Typically R.sup.1 and R.sup.2 and also R.sup.3 and R.sup.4 complete a trimethylene ring, R.sup.5 and R.sup.7 are each hydrogen and R.sup.6 and R.sup.8 are alkyl such as methyl. The compounds have microbiological activity.
    Type: Grant
    Filed: September 20, 1991
    Date of Patent: July 6, 1993
    Assignee: Imperial Chemical Industries PLC
    Inventors: Peter W. Austin, Neville Tyreman