A polymeric system for release of an active agent
US-2015374838-A1 · Dec 31, 2015 · US
Polymer derivatives comprising an acetal or ketal branching point
US9308273B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9308273-B2 |
| Application number | US-201314045489-A |
| Country | US |
| Kind code | B2 |
| Filing date | Oct 3, 2013 |
| Priority date | May 3, 2004 |
| Publication date | Apr 12, 2016 |
| Grant date | Apr 12, 2016 |
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- Title
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- Abstract
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Abstract
Official abstract text for this publication.
The invention conjugates that can be prepared by contacting a polymer comprising an acetal or ketal branching point with a pharmacologically active agent under conditions suitable to form a covalent attachment between the polymer and the pharmacologically active agent.
First claim
Opening claim text (preview).
What is claimed is: 1. A conjugate prepared by a polymer with a pharmacologically active agent under conditions suitable to form a covalent attachment between the polymer and the pharmacologically active agent, wherein the polymer is selected from the group consisting of wherein each (m) is from 2 to 4,000 and R o is H or an organic radical. 2. The conjugate of claim 1 , wherein the pharmacologically active agent is selected from the group consisting of peptides, polypeptides and proteins.
Assignees
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Classifications
with organic compounds · CPC title
cyclic · CPC title
containing oxygen {(cyclic ether compounds C08G65/26)} · CPC title
acyclic · CPC title
- A61K47/48215Primary
Human Necessities · mapped topic
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Frequently asked questions
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- What does patent US9308273B2 cover?
- The invention conjugates that can be prepared by contacting a polymer comprising an acetal or ketal branching point with a pharmacologically active agent under conditions suitable to form a covalent attachment between the polymer and the pharmacologically active agent.
- Who is the assignee on this patent?
- Nektar Therapeutics
- What technology area does this patent fall under?
- Primary CPC classification A61K47/48215. Mapped technology areas include Human Necessities.
- When was this patent published?
- Publication date Tue Apr 12 2016 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).