Solvent-cast microprotrusion arrays containing active ingredient
US9114238B2 · kind B2 · utility
24Cited by
229References
58Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 16, 2008 |
| Grant date | Aug 25, 2015 |
| Priority date | — |
| Expiry date | Sep 3, 2031 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2207/00
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
In an aspect of the invention, an array of microprotrusions is formed by providing a mold with cavities corresponding to the negative of the microprotrusions, casting atop the mold a first solution comprising a biocompatible material and a solvent, removing the solvent, casting a second solution atop the first cast solution, removing the solvent from the second solution, and demolding the resulting array from the mold. The first solution preferably contains an active ingredient.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.