Patent Number: 5858385
Title:  Controlled release device and method based on aqueous--organic partitioning in porous membranes
Inventors: Kamalesh K. Sirkar, Stephanie Farrell, Rahul Basu
Abstract: A novel controlled release device employing microporous membranes with or without a nonporous coating and aqueous-organic partitioning of the bioreactive substances to be delivered is provided. Devices and methods for delivering pharmaceuticals, pest-control substances, hormones, nutrients and fragrances to humans, animals or any environment are also provided.
Download Patent