Patent intelligence · US
US 7544738
Method for the preparation of 1-benzotriazolyl carbonate esters of poly(ethylene glycol)
Method for the preparation of 1-benzotriazolyl carbonate esters of poly(ethylene glycol)
Patent details — US 7544738
- Jurisdiction
- US
- Status
- granted
- Grant date
- Jun 9, 2009
- Expiration
- Jun 4, 2029
- Applicant
- Nektar Therapeutics AL, Corporation
- Claims
- 3
- CPC classes
- A61K, A61K31/7088, A61K47/58, A61K47/60
Quick answer
US 7544738 (Method for the preparation of 1-benzotriazolyl carbonate esters of poly(ethylene glycol)) is held by Nektar Therapeutics AL, Corporation. Status: granted. Granted Jun 9, 2009. Expires Jun 4, 2029 (3 years remaining) — relevant for patent-cliff and LOE planning.
Key facts
- Applicant
- Nektar Therapeutics AL, Corporation
- Grant date
- Expiration
- Claims
- 3
- CPC classes
- A61K, A61K31/7088, A61K47/58, A61K47/60, A61K47/6901, A61P
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Frequently asked questions
What is US patent 7544738?
US 7544738 (Method for the preparation of 1-benzotriazolyl carbonate esters of poly(ethylene glycol)) is held by Nektar Therapeutics AL, Corporation. Status: granted. Granted Jun 9, 2009. Expires Jun 4, 2029 (3 years remaining) — relevant for patent-cliff and LOE planning.
Who owns US 7544738?
Nektar Therapeutics AL, Corporation is listed as the applicant in USPTO PatentsView records indexed by NovaPharmaNews. We track 423 pharmaceutical patents for this assignee.
When does US 7544738 expire?
Our index shows an expiration date of Jun 4, 2029 (3 years from today). Confirm material dates against USPTO, FDA Orange Book, or qualified counsel before contractual decisions.