Punctal plugs
US9259351B2 · kind B2 · utility
1Cited by
52References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 21, 2012 |
| Grant date | Feb 16, 2016 |
| Priority date | — |
| Expiry date | Oct 7, 2033 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K9/0051
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
Punctal plugs for delivering therapeutic agents have a body, a portion into which the therapeutic agent is held, a winding about the body, and an enlarged portion or anchor at an end.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.