Highly purified polylactic acid or a derivative thereof, a salt of the same, and purification method thereof
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United States of America Patent
Stats
-
Dec 13, 2016
Grant Date -
Aug 25, 2011
app pub date -
Jun 23, 2009
filing date -
Nov 7, 2008
priority date (Note) -
In Force
status (Latency Note)
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Abstract
Disclosed are a highly purified polylactic acid or a derivative thereof, or a salt thereof, and a method for purifying the same. The polylactic acid or a derivative thereof, or a salt thereof may be applied to various medical and drug carrier systems, or the like.
First Claim
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International Classification(s)
- 2009 Application Filing Year
- A61K Class
- 10313 Applications Filed
- 6747 Patents Issued To-Date
- 65.43 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 0 Citation Count
- A61K Class
- 0 % this patent is cited more than
- 9 Age
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Jun 13, 2028 |
