Patents by Inventor Paula Louise McGeechan

Paula Louise McGeechan 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).

  • Patent number: 8603453
    Abstract: A composition comprising: (i) an anti-microbial agent; and (ii) an acidic co-polymer of the Formula (1) wherein: [A] is of Formula (9), [B] is of Formula (10), and [C] is of Formula (12), wherein: [X] is of Formula (11), wherein [A], [B] and [C] may occur in any order; T is an optionally substituted substituent; L and G each independently is an optionally substituted linking group; R1, R2 and R3 are each independently H, optionally substituted C1-20-alkyl or optionally substituted C3-20-cycloalkyl; R4 and R5 are each independently H or C1-4-alkyl; q is 15 to 1000; p is 3 to 50; J is an optionally substituted hydrocarbyl, group; F is an acidic substituent; b is 0, 1, or 2; m is 0 to 350; n is 1 to 75; v is 1 to 100; and w is 1 to 4; provided that at least one of R4 and R5 is H and provided that R1, R2, R3, T, L, J and G do not contain a basic group; and wherein the pka value of the acidic substituent F on the monomer from which [C] is derived is less than
    Type: Grant
    Filed: May 20, 2004
    Date of Patent: December 10, 2013
    Assignee: Arch UK Biocides Limited
    Inventors: David John Hodge, David Alan Pears, John Jeffrey Gerrard, Paula Louise McGeechan
  • Publication number: 20120157540
    Abstract: The present invention relates to disinfectant formulations containing: (i) an antimicrobial active agent selected from the group consisting of biguanides, monoguanides, and combinations thereof; (ii) a compound selected from the group consisting of a dialkyldimethyl ammonium salt, an alkyldimethylbenzyl ammonium salt, an alkyldimethyl(ethylbenzyl) ammonium salt, and combinations thereof wherein the formulation is free of sequestrants. The total amount of the component (i) and the component (ii) is from about 500 ppm to about 1000 ppm based on the weight of the disinfectant formulation, and the component (i) and the component (ii) are present in a range of weight ratios between about 1:1 and about 1:10.
    Type: Application
    Filed: January 17, 2012
    Publication date: June 21, 2012
    Inventors: Paula Louise McGeechan, William Woods
  • Patent number: 7851541
    Abstract: A composition containing an anti-microbial agent that comprises a polymeric biguanide, either alone or in combination with at least one other microbiologically active component. The composition also includes an amphoteric co-polymer of the Formula (1): (i) group consisting of quaternary ammonium compounds, [A]m-[B]n-[C]v-[D]yq.
    Type: Grant
    Filed: April 27, 2007
    Date of Patent: December 14, 2010
    Assignee: Arch UK Biocides Limited
    Inventors: David John Hodge, David Alan Pears, John Jeffrey Gerrard, Paula Louise McGeechan
  • Publication number: 20100240762
    Abstract: The present invention relates to a stable and effective sanitizer formulation for indirect food contact applications. The formulation contains: (a) an antimicrobial active agent selected from the group consisting of biguanides, monoguanides, and combinations thereof; (b) a dialkyldimethyl ammonium salt, and (c) a compound selected from the group consisting of an alkyldimethylbenzyl ammonium salt, an alkyldimethyl(ethylbenzyl) ammonium salt, an alkoxylated alcohol, and combinations thereof.
    Type: Application
    Filed: March 19, 2010
    Publication date: September 23, 2010
    Inventors: Paula Louise McGeechan, William Woods
  • Patent number: 7226968
    Abstract: A composition containing (i) an anti-microbial agent that comprises a polymeric biguanide, either alone or in combination with at least one other microbiologically active component and (ii) a basic co-polymer of the Formula (1): [A]m-[B]n-[D]yq.
    Type: Grant
    Filed: May 20, 2004
    Date of Patent: June 5, 2007
    Assignee: Arch UK Biocides Limited
    Inventors: David John Hodge, David Alan Pears, John Jeffrey Gerrard, Paula Louise McGeechan
  • Patent number: 7217759
    Abstract: A composition containing (i) an anti-microbial agent that comprises a polymeric biguanide, either alone or in combination with at least one other microbiologically active component and (ii) an amphoteric co-polymer of the Formula (1):
    Type: Grant
    Filed: May 20, 2004
    Date of Patent: May 15, 2007
    Assignee: Arch UK Biocides Limited
    Inventors: David John Hodge, David Alan Pears, John Jeffrey Gerrard, Paula Louise McGeechan
  • Patent number: 7202287
    Abstract: The invention relates to a method for inhibiting the growth of microorganisms in a latex, especially a sterically stabilised or cationic stabilised latex and to a composition for use in the method comprising a polymeric biguanide and an isothiazolinone of the Formula (1). wherein: R is H, alkyl, cycloalkyl or aralkyl; and Y and Z each independently are H, halogen or C1-4-alkyl or Y and Z together with the carbon atoms to which they are attached form an optionally substituted 5 or 6 membered ring.
    Type: Grant
    Filed: October 5, 2001
    Date of Patent: April 10, 2007
    Assignees: Arch Chemicals, Inc., Arch UK Biocides Limited
    Inventors: Alexander Cornish, David John Hodge, Emerentiana Sianawati, Paula Louise McGeechan
  • Patent number: 6861395
    Abstract: The present invention relates to a method of inhibiting the growth of microorganisms in a metal working fluid comprising adding to the metal working fluid a benzisothiazolin-3-one of the Formula (1): wherein R is C4-5-alkyl; R1 is hydroxy, halogen (especially chlorine), C1-4-alkyl or C1-4-alkoxy; and n is from 0 to 4.
    Type: Grant
    Filed: May 18, 2001
    Date of Patent: March 1, 2005
    Assignee: Arch UK Biocides Limited
    Inventors: Ian Michael Eastwood, Paula Louise McGeechan
  • Publication number: 20030187095
    Abstract: The invention relates to a method for inhibiting the growth of microorganisms in a latex, especially a sterically stabilised or cationic stabilised latex and to a composition for use in the method comprising a polymeric biguanide and an isothiazolinone of the Formula (1).
    Type: Application
    Filed: February 25, 2003
    Publication date: October 2, 2003
    Inventors: Alexander Cornish, David John Hodge, Emerentiana Sianawati, Paula Louise McGeechan
  • Publication number: 20030168626
    Abstract: The present invention relates to a method of inhibiting the growth of microorganisms in a metal working fluid comprising adding to the metal working fluid a benzisothiazolin-3-one of the Formula (1): wherein R is C4-5-alkyl; R1 is hydroxy, halogen (especially chlorine), C1-4-alkyl or C1-4-alkoxy; and n is from 0 to 4.
    Type: Application
    Filed: April 4, 2003
    Publication date: September 11, 2003
    Inventors: Ian Michael Eastwood, Paula Louise McGeechan
  • Patent number: 6482814
    Abstract: A composition comprising a C3-5-alkyl-1,2-benzisothiazolin-3-one and the metal complex of a cyclic thiohydroxamic acid such as the 2:1 zinc salt of either 3-hydroxy-4-methylthiazol-2(3H)-thione or 1-hydroxypyridine-2-thione.
    Type: Grant
    Filed: February 15, 2001
    Date of Patent: November 19, 2002
    Assignee: Avecia Limited
    Inventors: Colin Bath, John David Payne, Paula Louise McGeechan
  • Patent number: 6455558
    Abstract: A method for the preservation of a plastics material against the growth of deteriogens which comprises treating the plastics material with a composition comprising a) an isothiazolin-3-one such as N-n-octyl- or 4,5-dichloro-N-n-octyl-isothiazolin-3-one and b) the metal complex of a thiohydroxamic acid such as 2:1 zinc complex of 3-hydroxy-4-methylthiazol-2(3H)-thione or the 2:1 zinc complex of 1-hydroxypyridine-2-thione.
    Type: Grant
    Filed: August 23, 2001
    Date of Patent: September 24, 2002
    Assignee: Avecia Limited
    Inventors: Colin Bath, John David Payne, Paula Louise McGeechan