Patents by Inventor Dmitri Ptchelintsev
Dmitri Ptchelintsev 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: 6641845Abstract: A preferred composition containing a skin whitening blend containing bearberry and an antioxidant, such as tetrahydrocurcumin, is provided. Also the composition can comprise a hypopigmenting component selected from mulberry, scutellaria, grape, cowberry, bilberry, molasses, pear, guava, licorice, etc. The licorice extract can be in the form of a water soluble extract or an oil soluble extract. Other antioxidants can be selected from rosemary extract, tocopherol, green tea extract, and gamma oryzanol. The skin whitening blend may also have an accelerant that enhances or accelerates the skin cell turnover rate. The skin whitening blend may also include a sunscreen component. Also, the composition may further include a pH adjusting agent, a surfactant, a thickening agent, a preservative, a fragrance, a masking agent, a pigment, an emulsifier, and/or emollient.Type: GrantFiled: June 2, 2000Date of Patent: November 4, 2003Assignee: Avon Products, Inc.Inventors: Christos D. Kyrou, Susan E. Simpson, Dmitri Ptchelintsev, Dennis M. Martin, Janice J. Teal
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Publication number: 20030198657Abstract: There are provided methods of enhancing the appearance of human skin comprising applying a composition having (i) phytol in an amount about 0.0001 wt % to about 50 wt % based on the total weight of the composition, and (ii) at least one retinoid in an amount about 0.001 wt % to about 1.5 wt % based on the total weight of the composition. Alternatively, the composition used in the method for enhancing the appearance of human skin may have phytol and perilla oil.Type: ApplicationFiled: May 20, 2003Publication date: October 23, 2003Applicant: Avon Products, Inc.Inventors: Gopinathan K. Menon, Dmitri Ptchelintsev, Harish Mahalingam
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Publication number: 20030180233Abstract: There are disclosed cosmetic compositions and methods for protection of keratinous tissue against environmental aggressors, such as smoke, smog and UV radiation. The compositions have as an essential antioxidant: (i) hesperetin, (ii) tetrahydrocurcumin, (iii) tetrahydrodemethoxycurcumin, or (iv) tetrahydrobisdemethoxycurcumin, or mixtures of thereof. The compositions are preferably in the form of oil in water emulsions and may optionally contain one or more emulsifiers, preservatives, thickeners, sunscreens, additional antioxidants, emollients, skin protectants, hair protectants, nail protectants and the like.Type: ApplicationFiled: February 18, 2003Publication date: September 25, 2003Applicant: AVON PRODUCTS, INC.Inventors: Glen T. Anderson, Dmitri Ptchelintsev, Michael Traudt
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Publication number: 20030138467Abstract: There are provided methods and compositions for improving the aesthetic appearance of akin, treating rosacea and/or telangiectasia, and treating the signs of dermatological aging. The method is directed to topically applying to an affected area an effective amount of mangostin, an analog thereof, or a combination thereof.Type: ApplicationFiled: December 27, 2001Publication date: July 24, 2003Applicant: AVON PRODUCTS, INC.Inventor: Dmitri Ptchelintsev
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Publication number: 20030118617Abstract: A method for treating the skin of a human is disclosed.Type: ApplicationFiled: December 21, 2001Publication date: June 26, 2003Applicant: AVON PRODUCTS, INC.Inventors: Lynn Soby, Eugenia H. Theophilus, Dmitri Ptchelintsev, Paul S. Attar
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Patent number: 6562321Abstract: There is provided a topical composition for treating, preventing or ameliorating hyperpigmentation in human skin. The composition has a de-pigmenting agent in an amount effect to reduce or diminish pigmentation at an area of skin to which it is applied, and a cosmetically or pharmaceutically acceptable vehicle. Suitable de-pigmenting agents include 3,3′-thiodipropionic acid, thiazolidine-2-carboxylic acid, kaempferol-7-glucoside, perilla oil, and clofibrate and clofibrate analogs and derivatives. There is also provided methods for treating, preventing or ameliorating hyperpigmentation in human skin.Type: GrantFiled: December 20, 2000Date of Patent: May 13, 2003Assignee: Avon Products, Inc.Inventors: Dmitri Ptchelintsev, Christos D. Kyrou, Harish Mahalingam
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Patent number: 6534543Abstract: The present invention is directed to the use of compounds of Formula (I), as active principals for treating skin conditions and compositions containing these compounds wherein R4 is (CR5R6-CR7R81-X1)n-CR9R10R11; n is an integer from 1 to 18; R1, R2, R3, R5, R6, R7, R8, R9, R10 and R11, are independently, herein defined and X, X1, Y and Z are independently, 0, NH or S.Type: GrantFiled: September 21, 2001Date of Patent: March 18, 2003Assignee: Avon Products, Inc.Inventors: Dmitri Ptchelintsev, Neil Scancarella, Robert Kalafsky
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Patent number: 6521668Abstract: There are disclosed cosmetic compositions and methods for protection of keratinous tissue against environmental aggressors, such as smoke, smog and UV radiation. The compositions have as an essential antioxidant: (i) hesperetin, (ii) tetrahydrocurcumin, (iii) tetrahydrodemethoxycurcumin, or (iv) tetrahydrobisdemethoxycurcumin, or mixtures of thereof. The compositions are preferably in the form of oil in water emulsions and may optionally contain one or more emulsifiers, preservatives, thickeners, sunscreens, additional antioxidants, emollients, skin protectants, hair protectants, nail protectants and the like.Type: GrantFiled: December 14, 1999Date of Patent: February 18, 2003Assignee: Avon Products, Inc.Inventors: Glen T. Anderson, Dmitri Ptchelintsev, Michael Traudt
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Publication number: 20020141953Abstract: There is provided a topical composition for treating, preventing or ameliorating hyperpigmentation in human skin. The composition has a de-pigmenting agent in an amount effect to reduce or diminish pigmentation at an area of skin to which it is applied, and a cosmetically or pharmaceutically acceptable vehicle. Suitable de-pigmenting agents include 3,3′-thiodipropionic acid, thiazolidine-2-carboxylic acid, kaempferol-7-glucoside, perilla oil, and clofibrate and clofibrate analogs and derivatives. There is also provided methods for treating, preventing or ameliorating hyperpigmentation in human skin.Type: ApplicationFiled: December 20, 2000Publication date: October 3, 2002Applicant: Avon Products, IncInventors: Dmitri Ptchelintsev, Christos D. Kyrou, Harish Mahalingam
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Publication number: 20020054891Abstract: There are disclosed cosmetic compositions and methods for protection of keratinous tissue against environmental aggressors, such as smoke, smog and UV radiation. The compositions have as an essential antioxidant: (i) hesperetin, (ii) tetrahydrocurcumin, (iii) tetrahydrodemethoxycurcumin, or (iv) tetrahydrobisdemethoxycurcumin, or mixtures of thereof. The compositions are preferably in the form of oil in water emulsions and may optionally contain one or more emulsifiers, preservatives, thickeners, sunscreens, additional antioxidants, emollients, skin protectants, hair protectants, nail protectants and the like.Type: ApplicationFiled: December 14, 1999Publication date: May 9, 2002Inventors: GLEN T ANDERSON, DMITRI PTCHELINTSEV, MICHAEL TRAUDT
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Publication number: 20020040056Abstract: The present invention is directed to the use of compounds of Formula (I), depicted below, as active principals for treating skin conditions; compositions containing these compounds; and methods of treating skin conditions using these compounds and compositions.Type: ApplicationFiled: September 21, 2001Publication date: April 4, 2002Applicant: Avon Products, Inc.Inventors: Dmitri Ptchelintsev, Neil Scancarella, Robert Kalafsky
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Patent number: 6333356Abstract: The present invention is directed to the use of compounds of Formula (I), as active principals for treating skin conditions and compositions containing these compounds; wherein R4 is (CR5R6—CR7R8—X1)n—CR9R10R11, n is an integer from 1 to 18; R1, R2, R3, R5, R6, R7, R8, R9, R10 and R11, are independently, hydrogen or non-hydrogen substituents; and X, X1, Y and Z are independently NH.Type: GrantFiled: May 8, 2000Date of Patent: December 25, 2001Assignee: Avon Products, Inc.Inventors: Dmitri Ptchelintsev, Neil Scancarella, Robert Kalafsky
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Patent number: 6162450Abstract: The present invention relates to the use of 3'-(L-ascorbyl-2-o-phosphoryl)-cholesterol, 3'-(L-ascorbyl-3-o-phosphoryl)-cholesterol, and their derivatives ("APC compounds"). More specifically, the present invention relates to use of APC compounds to improve the appearance and health of skin, hair, lips and nails. The present invention also relates to methods of topically administering APC compounds to cleanse skin and remove make-up, moisturize skin, enhance the shine and wear of nail coating compositions, and to improve compositions having pigments and/or iron oxides.Type: GrantFiled: November 9, 1998Date of Patent: December 19, 2000Assignee: Avon Products, Inc.Inventors: Dmitri Ptchelintsev, John A. Duffy, Robert Kalafsky, Harold E. Pahlck
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Patent number: 6071962Abstract: Disclosed the use of compounds of Formula (I) depicted below, as active principals for treating skin conditions, compositions containing these compounds, and methods of treating skin conditions using these compounds and compositions. ##STR1## where R.sub.4 is (CR.sub.5 R.sub.6 --CR.sub.7 R.sub.8 --X.sub.1).sub.n --CR.sub.9 R.sub.10 R.sub.11 ; n is an integer from 1 to 18; R.sub.1, R.sub.2, R.sub.3, R.sub.5, R.sub.6, R.sub.7, R.sub.8, R.sub.9, R.sub.10 and R.sub.11 are, independently, hydrogen or non-hydrogen substituents comprising alkyls, alkenyls, oxa-alkyls, aralkyls and aryls; and X, X.sub.1, Y and Z are, independently, oxygen, amine or sulfur, with preferred compounds being those in which X, X.sub.1, Y and Z are oxygen, and R.sub.1, R.sub.2, R.sub.3, R.sub.5, R.sub.6, R.sub.7, R.sub.8, R.sub.9, R.sub.10 and R.sub.11 are hydrogen.Type: GrantFiled: September 14, 1998Date of Patent: June 6, 2000Assignee: Avon Products, Inc.Inventors: Dmitri Ptchelintsev, Neil D. Scancarella, Robert Kalafsky
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Patent number: 6069169Abstract: The present invention is directed to the use of compounds of Formula (I), depicted below, as active principals for treating skin conditions; compositions containing these compounds; and methods of treating skin conditions using these compounds and compositions. ##STR1## wherein R.sub.4 is (CR.sub.5 R.sub.6 --CR.sub.7 R.sub.8 --X.sub.1).sub.n --CR.sub.9 R.sub.10 R.sub.11, n is an integer from 1 to 18; R.sub.1, R.sub.2, R.sub.3, R.sub.5, R.sub.6, R.sub.7, R.sub.8, R.sub.9, R.sub.10 and R.sub.11, are independently, hydrogen or non-hydrogen substituents; and X, X.sub.1, Y and Z are independently, 0, NH, or S.Type: GrantFiled: June 2, 1997Date of Patent: May 30, 2000Assignee: Avon Products, Inc.Inventors: Dmitri Ptchelintsev, Neil Scancarella, Robert Kalafsky
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Patent number: 6020367Abstract: A method of preparing a supersaturated and stable solution of ascorbic acid, supersaturated ascorbic acid solutions and compositions containing such supersaturated solutions. A polyol vehicle is heated to an elevated temperature, and the ascorbic acid is dissolved therein to form an ascorbic acid/polyol solution. The method provides a solution containing a significant concentration of ascorbic acid that is stable over time, temperature changes and other environmental factors.Type: GrantFiled: December 2, 1997Date of Patent: February 1, 2000Assignee: Avon Products, Inc.Inventors: John A. Duffy, Dmitri Ptchelintsev
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Patent number: 5972993Abstract: A method for treating skin conditions, such as rosacea and sensitive skin, that manifest as a tendency towards flushing and blushing is provided. Also provided herein, are compositions for the treatment of rosacea and sensitive skin that are comprised of at least one antioxidant selected from the following groups of antioxidants: (a) phenolic compounds that contain at least one hydroxyl group connected directly to a benzene ring and to another unsaturated chemical grouping, (b) sulfur-containing compounds that contain at least one sulfhydryl groups or sulfur-containing compounds that contain at least one disulfide group, or (c) polyene compounds that have conjugated systems of double bonds.Type: GrantFiled: March 20, 1998Date of Patent: October 26, 1999Assignee: Avon Products, Inc.Inventor: Dmitri Ptchelintsev
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Patent number: 5932229Abstract: Described are the use of compounds of Formula (I), depicted below, as active principals for treating skin conditions; compositions containing these compounds; and methods of treating skin conditions using these compounds and compositions. ##STR1## wherein R.sub.4 is (CR.sub.5 R.sub.6 --CR.sub.7 R.sub.8 --X.sub.1).sub.n --CR.sub.9 R.sub.10 --C(.dbd.X.sub.2)X.sub.3 R.sub.11, n is an integer from 1 to 18; R.sub.1, R.sub.2, R.sub.3, R.sub.5, R.sub.6, R.sub.7, R.sub.8, R.sub.9, R.sub.10 and R.sub.11, are independently, hydrogen or non-hydrogen substituents; and X, X.sub.1, X.sub.2, X.sub.3, Y and Z are independently, O, NH, or S.Type: GrantFiled: May 2, 1997Date of Patent: August 3, 1999Assignee: Avon Products, Inc.Inventors: Dmitri Ptchelintsev, Neil Scancarella, Robert Kalafsky
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Patent number: 5922335Abstract: Novel uses of 3'-(L-ascorbyl-2-o-phosphoryl)-cholesterol, 3'-(L-ascorbyl-3-o-phosphoryl)-cholesterol, structural or functional isomers thereof and salts thereof (referred to collectively as "APC compounds") are disclosed. Such novel uses include a method of reducing epidermal synthesis of abnormal elastin, especially epidermal synthesis of abnormal elastin that results from exposure to UV radiation. Also disclosed is a novel method of stimulating keratinocyte formation of triglycerides. In addition, a novel method of achieving antioxidant activity, both in the skin and also in topical compositions, is disclosed.Type: GrantFiled: July 30, 1998Date of Patent: July 13, 1999Assignee: Avon Products, Inc.Inventor: Dmitri Ptchelintsev
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Patent number: 5866147Abstract: This disclosure relates to a novel derivative of L-ascorbic acid which is stable, easily incorporated into cosmetically acceptable vehicles and enzymatically bioreversible in the skin to free ascorbic acid and a safe cholesterol component. An exemplary embodiment is 3'-(L-ascorbyl-2-phosphoryl)-cholesterol which is shown in Formula I.Type: GrantFiled: April 11, 1997Date of Patent: February 2, 1999Assignee: Avon Products, Inc.Inventor: Dmitri Ptchelintsev