Patents by Inventor Angus Peter MacMaster

Angus Peter MacMaster 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).

  • Method for assessing the volatile release performance of microcapsules
    Patent number: 11747248
    Abstract: A method for assessing the release performance of microcapsules comprising at least one volatile ingredient, the method comprising the steps of: a. applying a plurality of said microcapsules to an underlying surface; b. applying a kinetic frictional shear stress ? through a contact surface of a probe under a predefined load, a predefined contact surface area and a predefined shear rate to said plurality of microcapsules; and c. measuring the amount of the at least one volatile ingredient released per second from said microcapsules under said kinetic frictional shear stress ?.
    Type: Grant
    Filed: April 16, 2019
    Date of Patent: September 5, 2023
    Assignee: Givaudan SA
    Inventors: Shih-Chi Chu, Angus Peter Macmaster, Marcus James Goodall
  • Perfume compositions
    Patent number: 6780835
    Abstract: A perfume composition which gives good deposition and/or substantially improved deodorant effectiveness on textiles incorporating spandex® fibres. The perfume comprises a mixture of fragrance materials in which at least 60% by weight of the composition comprises fragrance materials drawn from categories I and II.
    Type: Grant
    Filed: August 29, 2002
    Date of Patent: August 24, 2004
    Assignee: Quest International B.V.
    Inventors: Keith Douglas Perring, Christopher Francis Clements, Angus Peter Macmaster
  • Method for textile treatment for spandex containing fabrics
    Patent number: 6713410
    Abstract: A method of treating textile which is yarn or fabric containing spandex fibres, comprising contracting the textile with a perfume so that the perfume is deposited on the fabric. The perfume contains a mixture of fragrance materials which preferentially deposit on the spandex fibres. The yarn of fabric may be made up into garments.
    Type: Grant
    Filed: July 14, 2000
    Date of Patent: March 30, 2004
    Assignee: E.I. du Pont de Nemours and Co.
    Inventors: Keith Douglas Perring, Christopher Francis Clements, Angus Peter MacMaster, Raymond Palmen, Olivier William John
  • Perfume compositions
    Publication number: 20030096730
    Abstract: A perfume composition which gives good deposition and/or substantially improved deodorant effectiveness on textiles incorporating spandex® fibres. The perfume comprises a mixture of fragrance materials in which at least 60% by weight of the composition comprises fragrance materials drawn from categories I and II.
    Type: Application
    Filed: August 29, 2002
    Publication date: May 22, 2003
    Applicant: QUEST INTERNATIONAL B.V.
    Inventors: Keith Douglas Perring, Christopher Francis Clements, Angus Peter Macmaster
  • Perfume compositions
    Patent number: 6465420
    Abstract: The present invention relates to a fabric softening bar composition comprising: from about 40% to about 90% by weight of the composition of a hydrophobic fabric softening compound, from about 0.1% to about 10% of an enduring perfume composition comprising at least about 70% of enduring perfume ingredients, and optionally, but preferably, from about 5% to about 30% by weight of the composition of a non-ionic surfactant, and from about 5% to about 30% by weight of the composition, water. These compositions are low sudsing, low lathering, non-detersive fabric softening compositions which provide long lasting perfume effects.
    Type: Grant
    Filed: June 19, 2000
    Date of Patent: October 15, 2002
    Assignee: Quest International B.V.
    Inventors: Keith Douglas Perring, Christopher Francis Clements, Angus Peter MacMaster