The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 14, 2018
Filed:
Nov. 30, 2015
Antriabio, Inc., Louisville, CO (US);
Mary S. Rosendahl, Broomfield, CO (US);
Sankaram B. Mantripragada, Windsor, CO (US);
Eliana B. Gomez, Boulder, CO (US);
REZOLUTE, INC., Louisville, CO (US);
Abstract
Examples may include a microsphere. The microsphere may include a biodegradable polymer. Furthermore, the microsphere may include a protein mixture selected from the group consisting of a protein-polyethylene glycol conjugate, the protein-polyethylene glycol conjugate and the hydrophobic anion of the organic acid, a protein and the hydrophobic anion of the organic acid, and combinations thereof. Examples may also include a method of making the microspheres. The method may further include reacting a polyethylene glycol with a protein to form a protein-PEG conjugate. In addition, the method may include protonating an amino group on the protein-PEG conjugate with a hydrophobic organic acid to form the protein-PEG conjugate salt. Furthermore, the method may include mixing the protein-PEG conjugate salt in an organic solvent with a biodegradable polymer. The method may also include emulsifying the mixture. Additionally, the method may include hardening the emulsified mixture into the controlled-release microspheres.