Patents by Inventor Jerome C. Easdon

Jerome C. Easdon 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).

  • Method of preparation of trifluoromethyl copper and trifluoromethyl aromatics
    Patent number: 4895991
    Abstract: The process of direct synthesis of trifluoromethyl copper and trifluoromethyl aromatics, both intermediate reagents useful in direct synthesis of certain perfluoroalkyl compounds. The process involves a direct reaction between on the one hand an aromatic halide and a difluorodihalomethane and on the other hand copper and a difluorodihalomethane.
    Type: Grant
    Filed: January 25, 1989
    Date of Patent: January 23, 1990
    Assignee: University of Iowa Research Foundation
    Inventors: Donald J. Burton, Denise M. Wiemers, Jerome C. Easdon
  • Method of preparation of trifluoromethyl copper and trifluoromethyl aromatics
    Patent number: 4749802
    Abstract: The process of direct synthesis of trifluoromethyl copper and trifluoromethyl aromatics, both intermediate reagents useful in direct synthesis of certain perfluoroalkyl compounds. The process involves a direct reaction between on the one hand an aromatic halide and a difluorodihalomethane and on the other hand copper and a difluorodihalomethane.
    Type: Grant
    Filed: August 10, 1987
    Date of Patent: June 7, 1988
    Assignee: University of Iowa Research Foundation, Inc.
    Inventors: Donald J. Burton, Denise M. Wiemers, Jerome C. Easdon
  • Method of preparation of compounds containing perfluoroalkyl groups
    Patent number: 4650887
    Abstract: The basic single step process for preparing trifluoromethyl organocadmium and zinc compounds from difluorodihalomethane is disclosed. The prepared trifluoromethyl compound may be used to add the trifluoromethyl to a variety of organic structures in a trifluoromethylating reaction. Among the structures included are aromatic compounds, halo olefins, allylic compounds, acetylenic compounds and acyl halides.
    Type: Grant
    Filed: December 16, 1985
    Date of Patent: March 17, 1987
    Assignee: University of Iowa Research Foundation
    Inventors: Donald J. Burton, Denise M. Wiemers, Jerome C. Easdon
  • Method of preparation of compounds containing perfluoroalkyl groups
    Patent number: 4582921
    Abstract: The basic single step process for preparing trifluoromethyl organocadmium and zinc compounds from difluorodihalomethane is disclosed. The prepared trifluoromethyl compound may be used to add the trifluoromethyl to a variety of organic structures in a trifluoromethylating reaction. Amongst the structures included are aromatic compounds, halo olefins, allylic compounds, acetylenic compounds and acyl halides.
    Type: Grant
    Filed: September 17, 1984
    Date of Patent: April 15, 1986
    Assignee: University of Iowa Research Foundation
    Inventors: Donald J. Burton, Denise M. Wiemers, Jerome C. Easdon