Patents by Inventor Raymond E. Arnold

Raymond E. Arnold has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Enzyme-containing granules coated with hydrolyzed polyvinyl alcohol or copolymer thereof
    Patent number: 5324649
    Abstract: A granular enzyme composition is produced, having reduced tendencies to form dust and leave residue, and exhibiting improved stability and delayed release characteristics. The granular composition comprises a core, an enzyme layer and an outer coating layer. The enzyme layer, and optionally the core and outer coating layer, contain a vinyl polymer. The vinyl polymer is preferably a hydrolyzed polyvinyl alcohol or copolymer thereof. The hydrolyzed polyvinyl alcohol has varying degrees of hydrolysis in the core, enzyme layer and outer coating layer. Also disclosed are methods for making such enzyme-containing granules, the methods having greatly reduced processing time.
    Type: Grant
    Filed: October 7, 1992
    Date of Patent: June 28, 1994
    Assignee: Genencor International, Inc.
    Inventors: Raymond E. Arnold, Nathaniel T. Becker, Matthew G. Boston, Aino Mansikkamaki, Curran M. Simpson, Daniel J. Wendt
  • Isophthalic polymer coated particles
    Patent number: 5254283
    Abstract: The invention relates to use of a water dispersible isophthalic acid polymer as a dust free coating on particulates. The particles provide a timed release of the contents of the particle which allows for reduced amounts of active agents on the coatings and less interference between active agents in the coating or environment and the particulates.
    Type: Grant
    Filed: January 17, 1991
    Date of Patent: October 19, 1993
    Assignees: Genencor International, Inc., Eastman Kodak Company
    Inventors: Raymond E. Arnold, Nathaniel T. Becker
  • Processes for the recovery of naturally produced chymosin
    Patent number: 5151358
    Abstract: Disclosed are methods for the recovery and purification of naturally produced chymosin. In particular, disclosed are methods for the recovery and purification of chymosin from aqueous solutions containing chymosin, pepsin and other contaminants.
    Type: Grant
    Filed: June 13, 1990
    Date of Patent: September 29, 1992
    Assignee: Genencor International, Inc.
    Inventors: Henry G. Heinsohn, Jeffrey D. Lorch, Kirk J. Hayenga, Raymond E. Arnold
  • Processes for the recovery of microbially produced chymosin
    Patent number: 5139943
    Abstract: Disclosed are methods for the recovery of microbially produced chymosin. In particular, disclosed are methods for the recovery of chymosin from the fermentation beer arising from culturing microorganisms which have been engineered so as to produce chymosin. Also disclosed are methods for the selective recovery and subsequent purification of microbially produced chymosin.
    Type: Grant
    Filed: June 13, 1990
    Date of Patent: August 18, 1992
    Assignee: Genencor International, Inc.
    Inventors: Henry G. Heinsohn, Jeffrey D. Lorch, Kirk J. Hayenga, Raymond E. Arnold