Low sodium permeability glass
US5631522A · kind A · utility
22Cited by
38References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 9, 1995 |
| Grant date | May 20, 1997 |
| Priority date | — |
| Expiry date | May 9, 2015 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J61/825
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A glass composition, particularly well suited for use in constructing sodium containing lamp envelopes. The glass composition is comprised of silica doped with yttrium and/or cesium, preferably in combination aluminum.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.