Patents by Inventor Francis Louvaine Diehl

Francis Louvaine Diehl 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).

  • Fabric treatment compositions
    Patent number: 4085052
    Abstract: A non-staining, anti-static fabric softening composition comprising particular "sorbitan esters" is applied to fabrics in an automatic laundry dryer.
    Type: Grant
    Filed: October 8, 1976
    Date of Patent: April 18, 1978
    Assignee: The Procter & Gamble Company
    Inventors: Alan Pearce Murphy, Paul Seiden, Francis Louvaine Diehl, Charles Bruce McCarty
  • Detergent compositions containing insoluble particulate materials having fabric conditioning properties
    Patent number: 4051046
    Abstract: Detergent compositions having fabric conditioning properties comprising an organic surface-active agent and low concentrations of substantially water-insoluble particulate material; said compositions imparting anti-wrinkling, ease of ironing, softness, anti-static, and appearance improvements to fabrics treated therewith.
    Type: Grant
    Filed: July 10, 1975
    Date of Patent: September 27, 1977
    Assignee: The Procter & Gamble Company
    Inventors: Francis Louvaine Diehl, James Byrd Edwards
  • Bleaching articles
    Patent number: 4017411
    Abstract: Non-starch thickened peroxygen bleaches, and articles releasably containing same, especially adapted for use in an automatic dryer are provided.
    Type: Grant
    Filed: March 27, 1975
    Date of Patent: April 12, 1977
    Assignee: The Procter & Gamble Company
    Inventors: Francis Louvaine Diehl, Mario Stephen Marsan, James Byrd Edwards
  • Bleaching articles
    Patent number: 4011172
    Abstract: Thickened chlorine bleaches, and articles releasably containing same, especially adapted for use in an automatic dryer are provided.
    Type: Grant
    Filed: March 27, 1975
    Date of Patent: March 8, 1977
    Assignee: The Procter & Gamble Company
    Inventors: Mario Stephen Marsan, Francis Louvaine Diehl, James Byrd Edwards
  • Stabilization and enhancement of enzymatic activity
    Patent number: 4011169
    Abstract: Enzyme-containing compositions having improved stability and enzymatic activity in aqueous medium, comprising an enzyme and certain aminated polysaccharides, such as aminated cellulose and aminated starch. Enzymatic detergent compositions comprising certain organic surface-active agents in combination with enzymes and aminated polysaccharides are disclosed as well.
    Type: Grant
    Filed: January 28, 1976
    Date of Patent: March 8, 1977
    Assignee: The Procter & Gamble Company
    Inventors: Francis Louvaine Diehl, Eugene Zeffren, Edward John Milbrada
  • Bleaching composition
    Patent number: 3996152
    Abstract: Low pH, non-starch gels containing particulate peroxygen compounds, especially diperazelaic acid, provide safe, effective and stable fabric bleaching compositions for use at alkaline pH's, e.g., in laundry baths.
    Type: Grant
    Filed: March 27, 1975
    Date of Patent: December 7, 1976
    Assignee: The Procter & Gamble Company
    Inventors: James Byrd Edwards, Francis Louvaine Diehl, Mario Stephen Marsan
  • Laundry pre-soak compositions
    Patent number: 3950277
    Abstract: Compositions and methods for removing oily triglyceride stains from fabrics employing a lipase enzyme and a lipase activator selected from the group consisting of naphthalene sulfonates, certain polyoxyalkylene derivatives of ethylenediamine and certain acylamino acid salts. The lipase-plus-activator compositions are utilized to pre-soak soiled fabrics, which are subsequently laundered using conventional household equipment.
    Type: Grant
    Filed: July 25, 1973
    Date of Patent: April 13, 1976
    Assignee: The Procter & Gamble Company
    Inventors: Robert Lee Stewart, Homer Wallace McCune, Francis Louvaine Diehl
  • Bleaching article
    Patent number: 3945936
    Abstract: A porous article releasably containing a dry, activated bleaching composition suitable for use in an automatic dryer.
    Type: Grant
    Filed: January 29, 1974
    Date of Patent: March 23, 1976
    Assignee: The Procter & Gamble Company
    Inventors: Malcolm Bramel Lucas, James Francis McKenna, Francis Louvaine Diehl
  • Stabilization and enhancement of enzymatic activity
    Patent number: 3944470
    Abstract: Enzyme-containing compositions having improved stability and enzymatic activity in aqueous medium, comprising an enzyme and certain aminated polysaccharides, such as aminated cellulose and aminated starch. Enzymatic detergent compositions comprising certain organic surface-active agents in combination with enzymes and aminated polysaccharides are disclosed as well.
    Type: Grant
    Filed: June 29, 1973
    Date of Patent: March 16, 1976
    Assignee: The Procter & Gamble Company
    Inventors: Francis Louvaine Diehl, Eugene Zeffren, Edward John Milbrada