Robert L Hopp

US Patent:

20010051182, Dec 13, 2001

Filed:

Jan 25, 2001

Appl. No.:

09/768156

Inventors:

Robert Hopp - Richland WA, US

International Classification:

A61K039/35
A61K009/70

US Classification:

424/449000, 424/195180, 424/275100

Abstract:

A device, preferably in the form of a skin patch, is disclosed for usage in the delivery of a contactant to human skin for the purpose of treating medical conditions responsive to contact immunotherapy, without the presence of medication to alleviate contact dermatitis induced by the contactant. The skin patch specifically induces a cell-mediated contact dermatitis in the treatment of skin disorders. Its anticipated use pertains to treatment of, for example, human papilloma virus infections, or warts. In a first embodiment, a pressure activated single chambered skin patch is topically applied and used for controlled release of contactant to human skin. In a second embodiment, a pressure activated two-chambered skin patch is topically applied and used for controlled release of a contactant to human skin. Alternatively, a single chambered skin patch is topically applied and hydrated by the contacted skin for release of contactant. In an additional embodiment, the contactant may be applied separately of the skin patch portion, in a manner that maintains the contactant in contact with the patient's skin for the predetermined period of time necessary to cause sufficient contact dermatitis to effect resolution of the medical condition.

US Patent:

20030026771, Feb 6, 2003

Filed:

Jul 31, 2001

Appl. No.:

09/919674

Inventors:

Robert Hopp - Richland WA, US

International Classification:

A61K007/42
A61K007/44
A61K007/00

US Classification:

424/059000, 424/060000, 424/400000, 424/401000

Abstract:

A well-dispersed thixotropic sunscreen composition having no greasy or powdery after effects is provided, along with a method for their production. The composition comprises an oleaginous liquid base, a thickening agent, and a coated particulate sunscreen material. The sunscreen agents are coated with, for example, dimethicone, which enables van der Waals forces to provide hydrogen bonding, keeping the sunscreen agents in suspension and without appreciable reaggregation.

US Patent:

58465596, Dec 8, 1998

Filed:

Sep 20, 1996

Appl. No.:

8/717108

Inventors:

Robert B. Hopp - Richland WA

International Classification:

A61F 1302

US Classification:

424448

Abstract:

A skin patch is disclosed for usage in the delivery of a contactant to human skin for the purpose of treating medical conditions responsive to contact immunotherapy. The skin patch specifically induces a cell-mediated contact dermatitis in the treatment of skin disorders. Its anticipated use pertains to treatment of human papilloma virus infections, or warts. In a first embodiment, a pressure activated single chambered skin patch is topically applied and used for controlled release of contactant to human skin. In a second embodiment, a pressure activated two chambered skin patch is topically applied and used for controlled release of a contactant to human skin. Alternatively, a single chambered skin patch is topically applied and hydrated by the contacted skin for release of contactant. In addition, a flared shroud region can be provided between the containment portion of the shroud and a surrounding adhesive flange to enlarge the area treated upon release of the contactant. The contactants include dinitrochlorobenzene, diphenylcyclopropenone, squaric acid dibutyl ester, and their derivatives.