Modulated release particles for aerosol delivery
US6596262B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 15, 2001 |
| Grant date | Jul 22, 2003 |
| Priority date | — |
| Expiry date | Feb 18, 2021 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K9/143
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
A polymeric construct is disclosed. The construct comprises a polymer selected from silica gel, fumed silica gel, silicic acid, disilicic acid, trisilicic acid, metasilicic acid, and orthosilicic acid in their free or salt forms; silicon dioxide in either of its amporphous, crystalline, or precipitated forms such as Purified Siliceous Earth; diatomacous earth; Fuller's earth, Kieselhurh, Celite; talc; attapulgite; micas; montmorilonite, kaolin, aluminum oxide (Hydrargilite), bentonite, pumice; silanes and siloxanes and any mixture of the foregoing having a selected medicament associated therewith. The medicament thus present is provided in a slow release form.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.