Patents by Inventor Bennett G. Buell

Bennett G. Buell 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).

  • Sulfoarylated nigrosine dye and use in jet-printing inks
    Patent number: 4284774
    Abstract: Nigrosine base is aryl sulfonated to produce a dye useful in jet-printing inks.
    Type: Grant
    Filed: November 7, 1979
    Date of Patent: August 18, 1981
    Assignee: American Cyanamid Company
    Inventor: Bennett G. Buell
  • Black dyes for ball-point pen inks
    Patent number: 4224071
    Abstract: Nitro-substituted monoazo dihydroperimidines which are useful as black dyes for ball-point pen inks are disclosed.
    Type: Grant
    Filed: April 16, 1979
    Date of Patent: September 23, 1980
    Assignee: American Cyanamid Company
    Inventor: Bennett G. Buell