Apparatus and method for delivering a volatile material
US11638771B2 · kind B2 · utility
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12Claims
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Key dates
| Filing date | Jan 16, 2020 |
| Grant date | May 2, 2023 |
| Priority date | — |
| Expiry date | Apr 15, 2041 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61L2209/131
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Apparatus for delivering a volatile material including a reservoir with an opening for containing a volatile material. A first membrane is disposed adjacent the opening of the reservoir, and a second membrane disposed adjacent the opening such that the first membrane is disposed between the second membrane and the reservoir, wherein at least a portion of the second membrane is spaced apart from the first membrane forming a vapor chamber between the first and second membranes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.