Patents by Inventor Martyn W. Hill

Martyn W. Hill 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).

  • Assay for dibromonitrilopropionamide
    Patent number: 5382529
    Abstract: A method of testing for the presence of dibromonitrilopropionamide in a sample, which comprises adding to the sample, under alkaline conditions and in the presence of magnesium ions, a phenolic or anilinic compound that generates a colour; and observing the resultant colour. The appropriate reagents may be formulated as a kit, e.g. using pyrocatechol as the phenolic compound.
    Type: Grant
    Filed: August 24, 1993
    Date of Patent: January 17, 1995
    Assignee: CTS Biocides Ltd.
    Inventors: Martyn W. Hill, Dennis F. Sharman
  • Assay for an aldehyde or a compound capable of releasing an aldehyde
    Patent number: 5372947
    Abstract: An aqueous sample containing methylenebisthiocyanate or another compound capable of releasing an aldehyde is assayed by determining the amount of aldehyde released by conversion with respect to a sample from which existing aldehydes have been separated. An aqueous sample containing glutaraldehyde or another aldehyde which having at least 2 C atoms is assayed by adding an agent which gives a water-insoluble complex, and determining the amount of complex or, after regeneration, the aldehyde.
    Type: Grant
    Filed: October 15, 1992
    Date of Patent: December 13, 1994
    Assignee: CTS Biocides Ltd.
    Inventors: Martyn W. Hill, Dennis F. Sharman, Peter D. Recton
  • Assay
    Patent number: 5145788
    Abstract: A method for assaying Bronopol or Permachem, i.e. 2-bromo-2-nitro-1,3-propanediol or 2,2-dibromo-2-nitroethanol, or a derivative thereof in a sample, comprises adding to the sample a diazo compound which reacts with the compound under test to form a colored species, and determining the presence and, if desired, concentration of the species colorimetrically.
    Type: Grant
    Filed: October 30, 1990
    Date of Patent: September 8, 1992
    Assignee: CTS Biocides, Limited
    Inventors: Martyn W. Hill, Dennis F. Sharman