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:
Oct. 30, 2018
Filed:
May. 13, 2014
3m Innovative Properties Company, St. Paul, MN (US);
Hassan Sahouani, Hastings, MN (US);
Mary M. Caruso Dailey, Maplewood, MN (US);
Luke E. Heinzen, Mahtomedi, MN (US);
Ibrahim A. El Hedok, Woodbury, MN (US);
3M INNOVATIVE PROPERTIES COMPANY, Saint Paul, MN (US);
Abstract
Polymeric composite particles are provided that can be used for the storage and delivery of various biologically active agent. The polymeric composite particles contain a porous polymeric core and a coating layer around the porous polymeric core. The porous polymeric composite particles typically further include a biologically active agent positioned within the porous polymeric core but not covalently bonded to the porous polymeric core. The biologically active agent can be released from the polymeric composite particle by diffusing out of the porous polymeric core through the coating layer.