Cygnus Research Corporation
4Patents
0Active
4Granted
31Portfolio score
Filing activity: Apr 8, 1988 → Mar 22, 1989
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4906463A | Transdermal drug-delivery composition | Human Necessities | 191 | Expired |
| US4973468A | Skin permeation enhancer compositions | Human Necessities | 137 | Expired |
| US4915950A | Printed transdermal drug delivery device | Human Necessities | 130 | Expired |
| US4911916A | Diffusion matrix for transdermal drug administration and transdermal drug delivery devices including same | Human Necessities | 59 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.