Janet M Marshall

US Patent:

57030278, Dec 30, 1997

Filed:

Nov 29, 1994

Appl. No.:

8/346560

Inventors:

Gregory Stephen Caravajal - Fairfield OH
Janet Layne Marshall - Cincinnati OH

Assignee:

The Procter & Gamble Company - Cincinnati OH

International Classification:

C11D 308
C11D 306
C11D 310
C11D 360

US Classification:

510232

Abstract:

Automatic dishwashing detergent compositions comprising a certain combination of metasilicate with other silicate (polymeric) components are disclosed. Particularly preferred compositions also comprise low foaming surfactant and detergency builders.

US Patent:

52924467, Mar 8, 1994

Filed:

Jun 29, 1992

Appl. No.:

7/908616

Inventors:

Jeffrey D. Painter - Cincinnati OH
Janet L. Marshall - Wyoming OH
James C. B. St. Laurent - Cincinnati OH

Assignee:

The Procter & Gamble Company - Cincinnati OH

International Classification:

C11D 337
C11D 712
C11D 718
C11D 1706

US Classification:

252 99

Abstract:

Disclosed is a process for making nonphosphated automatic dishwashing detergents which have granular form and comprise a conventional nonphosphorus builder system consisting essentially of an organic builder salt (such as citrate) and a dispersant (such as a polyacrylate); and an oxygen bleach system comprising a chelant (such as ethylenediamine disuccinate) and a bleach active (such as perborate or percarbonate) optionally with enzymes and/or dry-mixed hydrous silicates. The invention secures stable, free-flowing granules by a premix step in which the chelant and dispersant are brought together; a drying step using conventional equipment; and one or more admix steps in which the bleach active is mixed with the product of the drying step.

US Patent:

55994008, Feb 4, 1997

Filed:

Jun 6, 1995

Appl. No.:

8/466946

Inventors:

Mark H. Mao - Cincinnati OH
Janet L. Marshall - Cincinnati OH
Martha O. Visscher - Cincinnati OH

Assignee:

The Procter & Gamble Company - Cincinnati OH

International Classification:

B08B 300
C11D 3382

US Classification:

134 252

Abstract:

Mild detergent compositions which exhibit good cleaning performance comprise detergent surfactants and small amounts of protease. A preferred embodiment additionally contains suds boosters and divalent ions.

US Patent:

56912927, Nov 25, 1997

Filed:

Aug 22, 1995

Appl. No.:

8/518064

Inventors:

Janet Layne Marshall - Wyoming OH
David Lee Hall - Covington KY
Hal Ambuter - Medina OH
Edward Paul Fitch - Cincinnati OH

Assignee:

The Procter & Gamble Company - Cincinnati OH

International Classification:

C11D 3386
C11D 337

US Classification:

510221

Abstract:

A viscoelastic, thixotropic, liquid automatic dishwashing detergent composition which is substantially free of chlorine bleach and silicate and contains enzyme(s), an enzyme stabilizing system, and a detergent surfactant or detergent builder is provided. It has a product pH between about 7 and about 11.

US Patent:

59522780, Sep 14, 1999

Filed:

Feb 3, 1997

Appl. No.:

8/792742

Inventors:

Mark Hsiang-Kuen Mao - Cincinnati OH
Janet Layne Marshall - Cincinnati OH
Martha Orrico Visscher - Cincinnati OH

Assignee:

The Procter & Gamble Company - Cincinnati OH

International Classification:

C11D 3386
C11D 186
C11D 166

US Classification:

510235

Abstract:

Mild detergent compositions which exhibit good cleaning performance comprise detergent surfactants and small amounts of protease. A preferred embodiment additionally contains suds boosters and divalent ions.

US Patent:

20190300471, Oct 3, 2019

Filed:

Mar 29, 2019

Appl. No.:

16/369583

Inventors:

- Oxford OH, US
Janet Marshall - Middletown OH, US

International Classification:

C07C 67/58
C07C 67/52

Abstract:

The general inventive concepts are directed to the discovery that certain aryl acids can be esterified under particular conditions to provide the resulting ester as a solid that precipitates in good yield from the reaction mixture. The esters may then be isolated and purified with relative ease. Accordingly, a method for the esterification, isolation, and purification of aryl acids is provided.