The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 11, 2001
Filed:
Sep. 05, 2000
Lawrence L. Brooke, Sebastopol, CA (US);
Cal C. Herrmann, Richmond, CA (US);
Su IL Yum, Los Altos, CA (US);
Other;
Abstract
A transdermal structure is provided for delivering cannabis chemical(s) to one's bloodstream. The structure comprises a backing layer which carries the cannabis chemical(s). The chemicals are contained in a film on the backing layer or within a cavity formed in the backing layer. Alternatively, an opening in a secondary layer that overlies the backing layer may be used to create the cavity. The structure is applied to one's skin so that the cannabis chemicals are in contact with the skin. A polymer material which is mixed with the cannabis and placed in the cavity or a membrane over the cavity may be used to control the flow of cannabis chemical (s) into the bloodstream. In an alternative embodiment, a porous material impregnated with cannabis chemical (s) may be used to hold the chemical(s) in the cavity. Because of the relatively slow transdermal flow rate of cannabis materials, it is preferred to utilize permeation enhancers in conjunction with the cannabis carrier or reservoir matrixes or skin contacting adhesive layers.