Patents by Inventor Shannon Eugene Large

Shannon Eugene Large 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 the purification of cyclopropanecarboxaldehyde
    Patent number: 6353140
    Abstract: Disclosed is process for the treatment of cyclopropanecarboxaldehdye (CPCA) which contains crotonaldehyde impurity with a base at elevated temperature to convert the crotonaldehyde to one or more higher boiling compounds followed by distillation to recover CPCA substantially free of crotonaldehyde. This selective reaction may be combined with a distillation to purify CPCA or in combination with the reaction of the CPCA in the treated mixture to produce a CPCA-derivative while avoiding or minimizing the formation of the analogous crotonaldehyde derivative.
    Type: Grant
    Filed: June 8, 2001
    Date of Patent: March 5, 2002
    Assignee: Eastman Chemical Company
    Inventors: Stephen Neal Falling, Shannon Eugene Large, Robert Joseph Maleski