Patents by Inventor Eldon E. Atkinson, Jr.

Eldon E. Atkinson, Jr. 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 obtaining [S,S]-ethylenediamine-n,n'-disuccinic acid from a salt solution of such acid and l-aspartic acid
    Patent number: 5587512
    Abstract: This invention relates to a method for obtaining [S,S] ethylenediamine-N,N'-disuccinic acid precipitate from an aqueous solution of the salts of such acid and L-aspartic acid.
    Type: Grant
    Filed: July 11, 1994
    Date of Patent: December 24, 1996
    Assignee: Albemarle Corporation
    Inventors: Ronny W. Lin, Eldon E. Atkinson, Jr., Donald E. Balhoff
  • Process for producing [S,S]-ethylenediamine-N,N'-disuccinic acid
    Patent number: 5554791
    Abstract: This invention relates to a process for selectively producing and recovering [S,S]-ethylenediamine-N,N'-disuccinic acid by the reaction of L-aspartic acid and 1,2-dihaloethane in an aqueous medium, wherein a stoichiometric deficiency of 1,2-dihaloethane is used and wherein the resultant aqueous solution obtained from the reaction is co-fed to water with a mineral acid to preferentially precipitate out [S,S]-ethylenediamine-N,N'-disuccinic acid from the solution.
    Type: Grant
    Filed: July 11, 1994
    Date of Patent: September 10, 1996
    Assignee: Albemarle Corporation
    Inventors: Ronny W. Lin, Eldon E. Atkinson, Jr., Donald E. Balhoff
  • Method for producing [S,S]-ethylenediamine-N,N'-disuccinic acid from its calcium salt
    Patent number: 5466867
    Abstract: This invention relates to a method for converting calcium salts of [S,S]-ethylenediamine-N,N'-disuccinic acid to an easily filterable precipitate of [S,S]-ethylenediamine-N,N'-disuccinic acid.
    Type: Grant
    Filed: July 11, 1994
    Date of Patent: November 14, 1995
    Assignee: Albemarle Corporation
    Inventors: Ronny W. Lin, Eldon E. Atkinson, Jr., William J. Layman, Jr.