Physiological tear compositions and methods for their preparation
US5403598A · kind A · utility
28Cited by
6References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 6, 1994 |
| Grant date | Apr 4, 1995 |
| Priority date | — |
| Expiry date | Jan 6, 2014 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61P27/02
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
Non-preserved physiological tear compositions comprise the ionic components of normal human tear film in substantially the same amounts and proportions. Novel methods of preparation of these compositions and novel packaging allow the maintenance of the bicarbonate concentration in these compositions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.