Patents Assigned to RhoCraft Research Development, Ltd.
  • Patent number: 6518309
    Abstract: This patent discloses the use of poly-substituted isothiouronium salts (T1 where R1, R2, R3, R4=hydrogen, alkyl, cycloalkyl, alkenyl, cycloalkenyl, aryl, heteroaryl, etc. and X−=Cl−, Br−, NO3−, CH3CO2−, or any other common anion), poly-substituted guanidinium salts (G1 where R1, R2, R3, R5, R6=hydrogen, alkyl, cycloalkyl, alkenyl, cycloalkenyl, aryl, heteroaryl,etc. and X−=Cl−, Br−, NO3−, CH3CO2−, or any other common anion), or mixtures of two or more of the above compounds, as the biocidal component of microbiocidal or antifouling formulations.
    Type: Grant
    Filed: April 13, 2000
    Date of Patent: February 11, 2003
    Assignee: RhoCraft Research and Development Ltd.
    Inventors: Thomas M. Fyles, Robert D. Rowe
  • Publication number: 20020177627
    Abstract: This patent discloses the use of poly-substituted isothiouronium salts (T1 where R1, R2, R3, R4=hydrogen, alkyl, cycloalkyl, alkenyl, cycloalkenyl, aryl, heteroaryl, etc. and X−=Cl−, Br−, NO3−, CH3CO2−, or any other common anion), poly-substituted guanidinium salts (G1 where R1, R2, R3, R5, R6=hydrogen, alkyl, cycloalkyl, alkenyl, cycloalkenyl, aryl, heteroaryl, etc. and X−=Cl−, Br, NO3−, CH3CO2−, or any other common anion), or mixtures of two or more of the above compounds, as the biocidal component of microbiocidal or anti-fouling formulations.
    Type: Application
    Filed: June 28, 2002
    Publication date: November 28, 2002
    Applicant: RhoCraft Research Development, Ltd.
    Inventors: Thomas M. Fyles, Robert D. Rowe
  • Patent number: 6391174
    Abstract: An ion exchange membrane for use in sensors which measure dissolved gases. Disclosed is a method for using ion exchangers in gas permeable membranes to maintain optimal conditions in the electrolyte contained within the sensor. This can greatly extend the lifetime and improve the stability relative to sensors of similar size and electrolyte volume that have been constructed using prior art.
    Type: Grant
    Filed: November 22, 1999
    Date of Patent: May 21, 2002
    Assignee: RhoCraft Research and Development Ltd.
    Inventors: Robert D. Rowe, Thomas M. Fyles, George D. Robertson