Patent 8187855 was granted and assigned to Halozyme, Inc. on May, 2012 by the United States Patent and Trademark Office.
Provided are methods for preparing large-scale preparations of soluble hyaluronidases. The methods employ cells that contain a plurality of active copies of nucleic acid encoding the soluble hyaluronidase and a plurality of feedings and temperature changes, whereby the encoded soluble hyaluronidase is secreted into the cell culture medium.