Patents by Inventor Keith D. Perring
Keith D. Perring 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).
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Patent number: 6475473Abstract: A perfume composition contains at least 15% by weight one or more defined aldehydes, and at least 30% by weight of at least one of five defined categories of hydroxylic materials, ketones, ethers, esters and nitriles. The perfume composition exhibits a deodorant effect, is particularly good at reducing sulphurous malodors, and is suitable for use in deodorant products, personal products and laundry treatment products.Type: GrantFiled: January 5, 2001Date of Patent: November 5, 2002Assignee: Quest International B.V.Inventors: Keith D. Perring, Philip W. Goulding, John M. Behan
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Patent number: 6172037Abstract: A perfume fixative consisting essentially of polyvinylpyrrolidone, hydroxy propyl cellulose and hydrophobic oil. The perfume fixative is being incorporated in a perfume-containing formulation or product. The fixative is found to be effective in enhancing perfume life, even when utilized at low levels.Type: GrantFiled: November 22, 1999Date of Patent: January 9, 2001Assignee: Quest International B.V.Inventors: Keith D. Perring, Pamela V. Irving, Jeremy N. Ness, Kathleen M. Tuck
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Patent number: 5554588Abstract: A perfume composition contains at least 50% by weight of materials which fall into five categories defined by structure, and molecular weight. Amounts of material within each category fall within specified ranges of percentage of the whole composition. Two categories, ethers and salicylates, must be present. At least two of the remaining three categories, which are alcohols, acetate/propionate esters and methyl aryl ketones, must also be present.The compositions enable good levels of deodorant activity to be achieved along with consumer-acceptable fragrance.Type: GrantFiled: April 25, 1995Date of Patent: September 10, 1996Assignee: Lever Brothers Company, Division of Conopco, Inc.Inventors: John M. Behan, Christopher F. Clements, David C. Hooper, John R. Martin, James B. Melville, Keith D. Perring
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Patent number: 5500223Abstract: An encapsulation process employs an aqueous dispersion of silica having a particle size not substantially greater than 100 nm. An emulsion is formed by high shear mixing of the silica dispersion with the material to be encapsulated and the emulsion is gelled. The process allows hydrophobic materials to be encapsulated in structures which have a high loading of the material and a good degree of imperviousness in the presence of other materials such as surfactants and mineral oils. Using the process, hydrophobic materials such as flavours, fragrances and cosmetic ingredients can be encapsulated for delayed release in a wide variety of products.Type: GrantFiled: December 21, 1993Date of Patent: March 19, 1996Assignee: Unilever Patent Holdings B.V.Inventors: John M. Behan, Jeremy N. Ness, Keith D. Perring
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Patent number: 5482635Abstract: A fabric conditioning product which may be used during the rinsing or tumble drying of fabrics after washing, contains a perfume composition which contains specified ketones and salicylates. The perfumes inhibit development of human body malodour on the fabrics when worn and the combination of specified materials makes it possible to avoid inclusion of individual components with powerful, unacceptable odors.Type: GrantFiled: May 17, 1995Date of Patent: January 9, 1996Assignee: Lever Brothers CompanyInventors: John M. Behan, Christopher F. Clements, John R. Martin, Keith D. Perring
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Patent number: 5334581Abstract: The invention concerns a process for incorporating a perfume into a personal product, wherein the perfume is first combined with one or more non-ionic emulsifiers and an aqueous phase to form a structured emulsion containing liquid crystal structures, which surround the dispersed perfume, and thereafter this structured emulsion is dispersed into a personal product base. The invention also concerns the personal products thus obtained and the structured emulsions used in the process. The structured emulsions comprise 1-30 % by weight of one or more non-ionic emulsifiers, 1-50% by weight of a perfume and 20-98% by weight of an aqueous phase. Preferably low shear mixing is used in preparing the emulsions.Type: GrantFiled: June 15, 1993Date of Patent: August 2, 1994Assignee: Unilever Patent Holdings B.V.Inventors: John M. Behan, Jeremy N. Ness, Keith D. Perring, William M. Smith
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Patent number: 5288423Abstract: The invention concerns a process for incorporating a perfume into a detergent product, wherein the perfume is first combined with one or more non-ionic emulsifiers and an aqueous phase to form a structured emulsion containing liquid crystal structures, which surround the dispersed perfume, and thereafter this structured emulsion is dispersed into a detergent composition. The invention also concerns the detergent products thus obtained. The structured emulsion comprises 1-30% by weight of non-ionic emulsifiers, 1-50% by weight of a perfume and 20-98% by weight of an aqueous phase. The detergent product comprises at least 4% by weight of surfactant.Type: GrantFiled: July 10, 1991Date of Patent: February 22, 1994Assignee: Unilever Patent Holdings, B.V.Inventors: John M. Behan, Jeremy N. Ness, Keith D. Perring, William M. Smith
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Patent number: 5246918Abstract: The invention concerns a process for incorporating a perfume into a personal product, wherein the perfume is first combined with one or more non-ionic emulsifiers and an aqueous phase to form a structured emulsion containing liquid crystal structures, which surround the dispersed perfume, and thereafter this structured emulsion is dispersed into a personal product base. The invention also concerns the personal products thus obtained and the structured emulsions used in the process. The structured emulsions comprise 1-30% by weight of one or more non-ionic emulsifiers, 1-50% by weight of a perfume and 20-98% by weight of an aqueous phase. Preferably low shear mixing is used in preparing the emulsions.Type: GrantFiled: October 19, 1992Date of Patent: September 21, 1993Assignee: Unilever Patent Holdings B.V.Inventors: John M. Behan, Jeremy N. Ness, Keith D. Perring, William M. Smith
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Patent number: 5204023Abstract: The invention concerns a method of reducing the organoleptic effect of undesirable aldehydic components in a triglyceride or derivative thereof by addition of a reaction product of an amine and an organoleptically acceptable aldehyde. The triglyceride may be a food or food component such as an edible fat or a surface active agent such as a detergent. The reaction product may be incorporated in the perfume or flavor to be added to the triglyceride or derivative thereof without distorting their organoleptic effect.Type: GrantFiled: October 25, 1991Date of Patent: April 20, 1993Assignee: Unilever Patent Holdings B.V.Inventors: John M. Behan, Keith D. Perring
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Patent number: 5190915Abstract: The invention concerns a process for incorporating a perfume into a personal product, wherein the perfume is first combined with one or more non-ionic emulsifiers and an aqueous phase to form a structured emulsion containing liquid crystal structures, which surround the dispersed perfume, and thereafter this structured emulsion is dispersed into a personal product base. The invention also concerns the personal products thus obtained and the structured emulsions used in the process. The structured emulsions comprise 1-30% by weight of one or more non-ionic emulsifiers, 1-50% by weight of a perfume and 20-98% by weight of an aqueous phase. Preferably low shear mixing is used in preparing the emulsions.Type: GrantFiled: July 10, 1991Date of Patent: March 2, 1993Assignee: Unilever Patent Holdings B.V.Inventors: John M. Behan, Jeremy N. Ness, Keith D. Perring, William M. Smith
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Patent number: 5185155Abstract: An encapsulation process employs an aqueous dispersion of silica having a particle size not substantially greater than 100 nm. An emulsion is formed by high shear mixing of the silica dispersion with the material to be encapsulated and the emulsion is gelled. The process allows hydrophobic materials to be encapsulated in structures which have a high loading of the material and a good degree of imperviousness in the presence of other materials such as surfactants and mineral oils. Using the process, hydrophobic materials such as flavors, fragrances and cosmetic ingredients can be encapsulated for delayed release in a wide variety of products.Type: GrantFiled: September 27, 1991Date of Patent: February 9, 1993Assignee: Unilever Patent Holdings B.V.Inventors: John M. Behan, Jeremy N. Ness, Keith D. Perring
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Patent number: 5156766Abstract: The invention concerns emulsions based on non-ionic emulsifiers, with improved stability achieved by the addition of selected perfumery materials, and a process for preparing such emulsions. The emulsions comprise 1-30% by weight of one or more non-ionic emulsifiers 30-98% of an aqueous phase and 0.01-50% of hydrophobic materials. The stabilizing perfumery materials are present in 0.5-25% by weight based on the non-ionic emulsifiers. The emulsions are preferably prepared under low shear.Type: GrantFiled: July 10, 1991Date of Patent: October 20, 1992Assignee: Unilever Patent Holdings, B.V.Inventors: John M. Behan, Jeremy N. Ness, Keith D. Perring, William M. Smith
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Patent number: 5078904Abstract: The invention relates to perfumed fabric softening compositions wherein the perfume is encapsulated in micro-organism cells. Preferred micro-organisms for this purpose are yeasts, especially Saccharomyces cerevisiae, and filamentous fungi. The micro-organism cells preferably contain at least 15% w/w of perfume.Type: GrantFiled: August 2, 1990Date of Patent: January 7, 1992Assignee: Unilever Patent Holdings B.V.Inventors: John M. Behan, Keith D. Perring