Patents by Inventor Prakash C. Purohit

Prakash C. Purohit 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: 4966754
    Abstract: A cosmetic composition containing a dermatologically acceptable carrier or vehicle and certain essential oils as a preservative. The essential oil provides antimicrobial assurance against Apergillus niger, Candida albicans, Staphylococcus aureus and Pseudomonas aeruginosa. A method of preparing the preserved cosmetic composition is also described.
    Type: Grant
    Filed: August 8, 1988
    Date of Patent: October 30, 1990
    Assignee: Aveda Corporation
    Inventors: Prakash C. Purohit, Lal G. Ramdeen
  • Patent number: 4832947
    Abstract: A permanent waving process is disclosed in which an essential oil is incorporated into hair fibers. The incorporated of the essential oil into the hair fiber not only provides capacity to remove bad odors resulting from freshly permanent waved hair but also gives to the hair a supple and smooth feeling. The essential oil is incorporated in the oxidizing or neutralizing solution of the permanent waving process. The essential oils employed are those containing at least one component, ingredient or constituent having an ethylenically unsaturated bond, i.e.
    Type: Grant
    Filed: October 11, 1988
    Date of Patent: May 23, 1989
    Assignee: A-Veda Corporation
    Inventors: Albert Shansky, Prakash C. Purohit
  • Patent number: 4767617
    Abstract: An opacifier composition for use in permanent waving compositions and neutralizer compositions associated therewith. The opacifier composition is an aqueous emulsion containing: (a) methyl ester of hydrogenated rosin acids, (b) an alkylene glycol such as octylene glycol, and (c) a mixture of nonionic surfactants, such as the polyoxyethylene ethers of fatty alcohols, for example lauryl alcohol. The use of the opacifier composition eliminates or minimizes hair breakage which occurs with other opacifier systems such as those employing latex emulsions.
    Type: Grant
    Filed: July 31, 1986
    Date of Patent: August 30, 1988
    Assignee: A-Veda Corporation
    Inventors: Albert Shansky, Prakash C. Purohit