Extended use zirconium silicate compositions and methods of use thereof
US10300087B2 · kind B2 · utility
1Cited by
28References
22Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 31, 2017 |
| Grant date | May 28, 2019 |
| Priority date | — |
| Expiry date | Mar 6, 2037 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K9/14
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
The present invention relates to zirconium silicate compositions having a lead content that is below 0.6 ppm and methods of manufacturing zirconium silicate at reactor volumes exceeding 200-L with a lead content below 1.1 ppm. The lead content of the zirconium silicate of this invention are within the levels that are considered acceptable for extended use given the dose requirements for zirconium silicate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.