Methods and apparatus for determining formulation orientation of multi-layered pharmaceutical dosage forms
US7521067B1 · kind B1 · utility
7Cited by
11References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 2, 1999 |
| Grant date | Apr 21, 2009 |
| Priority date | — |
| Expiry date | Aug 11, 2020 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N21/9508
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
Rapid and accurate determination of the formulation orientation of multi-layer capsule-shaped tablets with respect to different internal formulation layers proximate to the opposite narrow and rounded ends of the tablets is required. By including an appropriate color scheme in multi-layer osmotic tablets, detection of the formulation orientation is achieved by detecting the color at a spot location on a side of the tablet corresponding to one or another formulation layer or to one or another interface of two formulation layers depending on the formulation orientation of the tablet.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.