Inventors list

Assignees list

Classification tree browser

Top 100 Inventors

Top 100 Assignees


Prithwiraj Maitra, Randolph US

Prithwiraj Maitra, Randolph, NJ US

Patent application numberDescriptionPublished
20080220026Mesoporous material compositions and methods of their use for improving the appearance of biological surfaces - The present invention relates to compositions and methods for treating and improving the aesthetic appearance of a biological surface by altering the optical properties of the biological surface, thereby resulting in a natural appearance. The compositions of the invention may be topically applied to the biological surface, including but not limited to skin, in an amount effective in improving the aesthetic and natural appearance of the biological surface.09-11-2008
20080279797Cosmetic nanocomposites based on in-situ cross-linked POSS materials - A cosmetic composition for caring for and/or making up the skin, lips and/or body in the form of a film, which is non-transferable, long-lasting with a comfortable feeling of use to consumers over long periods of wear time. The composition contains graftable POSS which forms a film when it cures in situ. The invention also relates to using such film for preparing a cosmetic composition and a makeup process and makeup kit comprising the product.11-13-2008
20090148393Multistep Cosmetic Compositions - The present invention relates to a system of cosmetic and dermatological compositions and methods for treating and improving the aesthetic appearance of a biological surface by altering the optical properties of the biological surface, thereby resulting in a natural, flawless appearance. The compositions of the invention may be topically applied to the biological surface, including but not limited to skin, in an amount effective in improving the aesthetic and natural appearance of the biological surface.06-11-2009
20090155586Method of Improving Skin Appearance Using Treated Macroscopic Particles - The invention relates to topical compositions comprising inorganic particles coated or embedded on the surface of macroscopic particles, methods of preparing the compositions, and uses thereof. The topical composition may be delivered and applied to a surface, thereby improving the appearance of the surface. This composition can reduce the visibility of textural imperfections, such as fine lines, wrinkles, and scars, as well as color imperfections, such as age spots and blemishes. The treatment of inorganic particles on the surface of macroscopic particles can be achieved by three methods, including mechanofusion, physical adsorption, and pre-emulsification into macroscopic particles. This invention also relates to methods of using the composition in a cosmetic or dermatological application, as well as, in an industrial application.06-18-2009
20090175915Nanoparticle Compositions Providing Enhanced Color for Cosmetic Formulations - The present invention relates to cosmetic, dermatological, and pharmaceutical compositions that deliver, in an acceptable vehicle or carrier comprising a film former or wax and an effective amount of nanoparticles and one or more pigments and methods for improving the appearance of a biological surface by altering the optical properties of the biological surface. The compositions of the invention enhance color and may be topically applied to the biological surface in an amount effective in improving the aesthetic and natural appearance of the biological surface.07-09-2009
20100266648Cosmetic Compositions for Imparting Superhydrophobic Films - Compositions and methods are disclosed for imparting super-hydrophobic properties to cosmetics, which can be used to significantly improve water repellency compared to traditional cosmetics. The compositions comprise a hydrophobic film former, and hydrophobic particles, in an emulsion base.10-21-2010
20100266649Gel Technology Suitable for Use in Cosmetic Compositions - A gel system comprising a fractal network of nanoparticles and macroscopic particles is disclosed. The gel system is capable of forming an “optical gel” effective to blurrfine lines and wrinkles as a consequence of the size domain differences between the fractal particles and the macroscopic particles. Cosmetic compositions comprising such gels and methods for their use are also disclosed.10-21-2010
20110104091Cosmetic Use of Water-Redispersible Powders - Cosmetic compositions comprising water-redispersible polymers are provided, as well as methods for using such compositions in cosmetics that afford powder-to-liquid and moisture-resistant benefits. These cosmetics can provide easier portability, as well as long wear benefits when topically applied to the skin or hair.05-05-2011
20110150799Block Copolymer and Ester-Terminated Polyesteramide Composition and Uses Thereof - Compositions and methods for the preparation of a composition comprising a block copolymer and ester-terminated polyester amide solubilized in a compatible solvent are disclosed. The disclosed compositions are long-lasting, transfer resistant, flexible, and water-proof capable of complexing the active ingredient to provide such benefits. The disclosed compositions are useful for formulating cosmetics, personal care products, cosmeceuticals, and the like.06-23-2011
20110150947Cosmetic Compositions Comprising Fibrous Pigments - Cosmetic compositions comprising a fibrous pigment having an average diameter greater than 0.2 microns and an average aspect ratio greater than 5, and methods of using said compositions for imparting a pigmented film on skin or imparting a lightening appearance of skin are provided. The compositions optionally comprise from 0.1 to 30% of a coloring agent, selected from pigments, lakes, and dyes. The appearance of skin to which the compositions have been topically applied as a cosmetic film possesses L*, a*, and b* color space values and angular reflection properties closer to those of natural skin than an identical composition wherein the fibrous pigment has an average aspect ratio of less than 5.06-23-2011

Patent applications by Prithwiraj Maitra, Randolph, NJ US