Patents by Inventor Douglas Henry May

Douglas Henry May 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).

  • Cryogenic process system with extended bonnet filter
    Patent number: 7472551
    Abstract: A cryogenic process system wherein a solids removal filter positioned in a conduit upstream of process equipment is within a filter housing having an angled bonnet which extends to the outside of insulated housing.
    Type: Grant
    Filed: November 16, 2005
    Date of Patent: January 6, 2009
    Assignee: Praxair Technology, Inc.
    Inventor: Douglas Henry May
  • Cryogenic process system with extended bonnet filter
    Publication number: 20080110203
    Abstract: A cryogenic process system wherein a solids removal filter positioned in a conduit upstream of process equipment is within a filter housing having an angled bonnet which extends to the outside of insulated housing.
    Type: Application
    Filed: November 16, 2005
    Publication date: May 15, 2008
    Inventor: Douglas Henry May