Patents by Inventor Ramon L. McElhaney

Ramon L. McElhaney 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).

  • Anti-acne compositions
    Patent number: 4514385
    Abstract: Anti-acne preparations include finely divided, dispersed particles of benzoyl peroxide and finely divided, dispersed particles of salicylic acid in an aqueous gel formed from carboxy vinyl polymer resins. The gels are prepared without loss of salicylic acid by fully hydrating the resin in an aqueous medium and allowing the resin to gel in the absence of an alkaline neutralizing agent.
    Type: Grant
    Filed: October 5, 1981
    Date of Patent: April 30, 1985
    Assignee: Alcon Laboratories, Inc.
    Inventors: Nalinkant C. Damani, Haresh G. Bhagat, Ramon L. McElhaney