Patents by Inventor Donald Elson Fowler

Donald Elson Fowler 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).

  • Process for purifying fluoroxy compounds
    Patent number: 7002040
    Abstract: This invention relates generally to a improvement in a process for the purification of fluoroxy compounds, such as bis(fluoroxy)difluoromethane and fluoroxytrifluoromethane produced by the fluorination of carbon oxides. The improvement in effecting purification of the fluoroxy compounds is effected by initially selectively removing the fluorine by contacting with a crystalline zeolite and then removing the carbon oxide by selective adsorption.
    Type: Grant
    Filed: January 28, 2003
    Date of Patent: February 21, 2006
    Assignee: Air Products and Chemicals, Inc.
    Inventors: Robert George Syvret, Philip Bruce Henderson, Donald Elson Fowler, Beth Ann Campion
  • Process for purifying fluoroxy compounds
    Publication number: 20040146454
    Abstract: This invention relates generally to a improvement in a process for the purification of fluoroxy compounds, such as bis(fluoroxy)difluoromethane and fluoroxytrifluoromethane produced by the fluorination of carbon oxides. The improvement in effecting purification of the fluoroxy compounds is effected by initially selectively removing the fluorine by contacting with a crystalline zeolite and then removing the carbon oxide by selective adsorption.
    Type: Application
    Filed: January 28, 2003
    Publication date: July 29, 2004
    Inventors: Robert George Syvret, Philip Bruce Henderson, Donald Elson Fowler, Beth Ann Campion
  • Active fluoride catalysts for fluorination reactions
    Patent number: 6524990
    Abstract: Active fluoride catalysts that are useful in producing electrophilic fluorination agents; especially useful in producing BDM from the reaction of fluorine with carbon dioxide and FTM from the reaction of fluorine with carbonyl fluoride. The fluoride catalyst comprises a mixture of two or more fluorides selected from a transition metal fluoride, an alkali metal fluoride and/or an alkaline earth metal fluoride. Alternately, the fluoride catalyst is one or more fluorides, such as alkali metal fluorides, alkaline earth metal fluorides, and/or transition metal fluorides, deposited on an inert support.
    Type: Grant
    Filed: February 15, 2001
    Date of Patent: February 25, 2003
    Assignee: Air Products and Chemicals, Inc.
    Inventors: Robert George Syvret, Philip Bruce Henderson, Donald Elson Fowler, Beth Ann Campion, Frederick Carl Wilheim
  • Active fluoride catalysts for fluorination reactions
    Publication number: 20020147364
    Abstract: Active fluoride catalysts that are useful in producing electrophilic fluorination agents; especially useful in producing BDM from the reaction of fluorine with carbon dioxide and FTM from the reaction of fluorine with carbonyl fluoride. The fluoride catalyst comprises a mixture of two or more fluorides selected from a transition metal fluoride, an alkali metal fluoride and/or an alkaline earth metal fluoride. Alternately, the fluoride catalyst is one or more fluorides, such as alkali metal fluorides, alkaline earth metal fluorides, and/or transition metal fluorides, deposited on an inert support.
    Type: Application
    Filed: February 15, 2001
    Publication date: October 10, 2002
    Inventors: Robert George Syvret, Philip Bruce Henderson, Donald Elson Fowler, Beth Ann Campion, Frederick Carl Wilhelm