Patents by Inventor Robert Joseph Heffner

Robert Joseph Heffner 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).

  • Patent number: 5755993
    Abstract: Bleaching compositions comprising a bleaching compound and an N-acyl-3- or 4-piperidone each preferably present in a range of about 1 to about 75% by weight. Additives, such as, surfactants, anti-foaming agents, fabric softeners, stabilizers, inorganic builder salts, buffers, enzymes and the like may also be present. The compositions can be formulated as dry concentrated mixtures encapsulated or in loose powder form, aqueous solutions, aqueous solutions containing non-aqueous solvents and like forms. The compositions are effective as bleaching agents from below room temperature to higher temperatures, biodegradable and environmentally safe.
    Type: Grant
    Filed: December 23, 1996
    Date of Patent: May 26, 1998
    Assignee: Colgate-Palmolive Co.
    Inventors: Robert Joseph Heffner, Robert John Steltenkamp
  • Patent number: 5709815
    Abstract: Bleaching compositions comprising a bleaching compound and an oxopiperidinium salt each preferably present in a range of about 1 to about 75% by weight. Additives, such as, surfactants, anti-foaming agents, fabric softeners, stabilizers, inorganic builder salts, buffers, enzymes and the like may also be present. The compositions can be formulated as dry concentrated mixtures encapsulated or in loose powder form, aqueous solutions, aqueous solutions containing non-aqueous solvents and like forms. The compositions are effective as bleaching agents from below room temperature to higher temperatures, are biodegradable and are environmentally safe.
    Type: Grant
    Filed: December 23, 1996
    Date of Patent: January 20, 1998
    Assignee: Colgate Palmolive Company
    Inventors: Robert Joseph Heffner, Robert John Steltenkamp