Patents by Inventor Joan Dalla Riva Toma

Joan Dalla Riva Toma 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).

  • Compostion, barrier film, and method for preventing contact dermatitis
    Patent number: 6110475
    Abstract: The present invention relates to a composition, and a method for preventing or reducing contact dermatitis. The composition contains a polysaccharide; a low molecular weight, synergistic saccharide; a solvent; and optionally an additive material.The present invention is further a dermatologically-compatible barrier film for preventing and reducing contact dermatitis which contains a polysaccharide; a low molecular weight, synergistic saccharide; and optionally one or more additives. The dermatologically-compatible barrier film is formed of a composition containing a polysaccharide; a low molecular weight, synergistic saccharide; a solvent; and optionally an additive material. The composition is a skin care product in a form of a lotion, a gel or a cream that is applied to skin of mammals.
    Type: Grant
    Filed: March 23, 1998
    Date of Patent: August 29, 2000
    Assignee: Hydromer, Inc.
    Inventors: Joan Dalla Riva Toma, Curtis L. Karl
  • Composition, barrier film, and method for preventing contact dermatitis
    Patent number: 5888520
    Abstract: The present invention relates to a composition, and a method for preventing or reducing contact dermatitis. The composition contains a polysaccharide; a low molecular weight, synergistic saccharide; a solvent; and optionally an additive material.The present invention is further a dermatologically-compatible barrier film for preventing and reducing contact dermatitis which contains a polysaccharide; a low molecular weight, synergistic saccharide; and optionally one or more additives. The dermatologically-compatible barrier film is formed of a composition containing a polysaccharide; a low molecular weight, synergistic saccharide; a solvent; and optionally an additive material. The composition is a skin care product in a form of a lotion, a gel or a cream that is applied to skin of mammals.
    Type: Grant
    Filed: April 25, 1997
    Date of Patent: March 30, 1999
    Assignee: Hydromer, Inc.
    Inventors: Joan Dalla Riva Toma, Curtis L. Karl
  • Composition, barrier film, and method for preventing contact dermatitis
    Patent number: 5851540
    Abstract: The present invention relates to a composition, and a method for preventing or reducing contact dermatitis. The composition contains a polysaccharide; a low molecular weight, synergistic saccharide; a solvent; and optionally one or more additives. The present invention is further a dermatologically-compatible barrier film for preventing and reducing contact dermatitis which contains a polysaccharide; a low molecular weight, synergistic saccharide; and optionally one or more additives. The dermatologically-compatible barrier film is formed of a composition containing a polysaccharide; a low molecular weight, synergistic saccharide; a solvent; and optional additives. The composition is a skin care product in a form of a lotion, a gel or a cream that is applied to skin of mammals. Once applied, the solvent in the composition evaporates, and thereby leaving behind a dermatologically-compatible barrier film containing polysaccharide and low molecular weight, synergistic saccharide.
    Type: Grant
    Filed: March 26, 1997
    Date of Patent: December 22, 1998
    Assignee: Hydromer, Inc.
    Inventors: Joan Dalla Riva Toma, Curtis L. Karl
  • Composition, barrier film, and method for preventing contact dermatitis
    Patent number: 5837266
    Abstract: The present invention relates to a composition, and a method for preventing or reducing contact dermatitis. The composition contains a polysaccharide; a low molecular weight, synergistic saccharide; a solvent; and optionally one or more additives.The present invention is further a dermatologically-compatible barrier film for preventing and reducing contact dermatitis which contains a polysaccharide; a low molecular weight, synergistic saccharide; and optionally one or more additives. The dermatologically-compatible barrier film is formed of a composition containing a polysaccharide; a low molecular weight, synergistic saccharide; a solvent; and optional additives. The composition is a skin care product in a form of a lotion, a gel or a cream that is applied to skin of mammals. Once applied, the solvent in the composition evaporates, and thereby leaving behind a dermatologically-compatible barrier film containing polysaccharide and low molecular weight, synergistic saccharide.
    Type: Grant
    Filed: April 30, 1996
    Date of Patent: November 17, 1998
    Assignee: Hydromer, Inc.
    Inventors: Joan Dalla Riva Toma, Curtis L. Karl