Apparatus and method for developing freeze drying protocols using small batches of product
US11885564B2 · kind B2 · utility
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6References
19Claims
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Key dates
| Filing date | Jan 16, 2020 |
| Grant date | Jan 30, 2024 |
| Priority date | — |
| Expiry date | Apr 2, 2041 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF26B21/10
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A method and apparatus for eliminating or minimizing the non-uniformity of edge vials compared to center vials during freezing or primary drying of product therein in a freeze dryer. A temperature controlled surface is positioned in close proximity to or in contact with the edge vials to control the temperature thereof. The method and apparatus may be used to simulate in a development freeze dryer the conditions of the center and edge vials in a larger batch target freeze dryer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.