Patents by Inventor JudithAnn R. Hartman

JudithAnn R. Hartman 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: 5362412
    Abstract: A process of stabilizing bleaching agents in a detergent composition using a nonphosphorus-containing biodegradable stabilizer. The process involves incorporating into a detergent composition containing a bleaching agent, a biodegradable compound of the formula ##STR1## in which m is NR' or sulfur; X is SO.sub.3 H or COOH; Y is hydrogen, SO.sub.3 H or COOH; R and R' are, independently, hydrogen, --CH(Z)CH.sub.2 (Z'), --CH(Z)CH(Z')(Z") or --CH.sub.2 COOH; and Z, Z' and Z" are, independently, hydrogen, OH, SO.sub.3 H or COOH; or a sodium, potassium or ammonium salt thereof, in an amount sufficient to stabilize the bleaching agent. Novel detergent compositions containing the biodegradable bleach stabilizers are also disclosed.
    Type: Grant
    Filed: April 17, 1991
    Date of Patent: November 8, 1994
    Assignee: Hampshire Chemical Corp.
    Inventors: JudithAnn R. Hartman, Richard P. Woodbury
  • Patent number: 5348583
    Abstract: New set-accelerating admixtures for hydraulic cement compositions are disclosed. These admixtures incorporate known set accelerators and certain low molecular weight glycols, e.g., glycerol and ethylene glycol, are found to be surprisingly effective in decreasing the initial set time of hydraulic cements, mortars, and concretes, and are advantageous as reduced-temperature set-accelerators. Preferred embodiments of the invention may also comprise a component selected from the group consisting of certain alkanolamines and mixtures thereof.
    Type: Grant
    Filed: September 24, 1993
    Date of Patent: September 20, 1994
    Assignee: W. R. Grace & Co.-Conn.
    Inventors: Ahmad Arfaei, Neal S. Berke, Ara A. Jeknavorian, Ellis M. Gartner, JudithAnn R. Hartman, David F. Myers