Patents by Inventor Lawrence A. Gilbert

Lawrence A. Gilbert 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).

  • Alkaline dishwasher detergent
    Patent number: 4199467
    Abstract: Alkaline dishwasher detergent composition having a specific critical pH; a specific mixture of alkali metal silicates for corrosion prevention, improved spotting and filming, and improved processing and physical characteristics; and having a relatively high level of surfactant. The detergent composition is substantially free of highly alkaline materials and organic builders.
    Type: Grant
    Filed: May 4, 1978
    Date of Patent: April 22, 1980
    Assignee: The Procter & Gamble Company
    Inventors: Gerald W. Novosel, Lawrence A. Gilbert, Maria L. S. Wee, Frank J. Mueller
  • Alkaline dishwasher detergent
    Patent number: 4199468
    Abstract: Alkaline dishwasher detergent composition having a specific critical pH, and, preferably, a relatively high level of available chlorine, buffered with trisodium phosphate, containing a tripolyphosphate or pyrophosphate sequestering builder, and having a relatively high level of surfactant. The detergent composition is substantially free of highly alkaline materials and organic builders and preferably contains 2.0r alkali metal silicate and/or a preferred C.sub.17 -C.sub.19 polyethoxylate surfactant.
    Type: Grant
    Filed: May 4, 1978
    Date of Patent: April 22, 1980
    Assignee: The Procter & Gamble Company
    Inventors: Brian D. Barford, Lawrence A. Gilbert, Robert A. Staab, Royal D. Collins, Charles R. Ries
  • Alkaline dishwasher detergent
    Patent number: 4191661
    Abstract: Alkaline dishwasher detergent composition having a specific critical pH, and a relatively high level of available chlorine, buffered with trisodium phosphate, containing a tripolyphosphate or pyrophosphate sequestering builder, and having a relatively high level of surfactant. The detergent composition is substantially free of highly alkaline materials and organic builders and preferably contains 2.0r alkali metal silicate and/or a preferred C.sub.17 -C.sub.19 polyethoxylate surfactant.
    Type: Grant
    Filed: November 7, 1977
    Date of Patent: March 4, 1980
    Assignee: The Procter & Gamble Company
    Inventors: Linda A. Halas, Lawrence A. Gilbert, Robert A. Staab, Royal D. Collins, Charles R. Ries
  • Liquid detergent composition
    Patent number: 4024078
    Abstract: A liquid detergent composition which is particularly effective in cleaning food-soiled surfaces while being mild to the skin is formulated from a mixture of decyl alcohol alkoxy sulfates having a high mono-alkoxylate content. Such compositions provide adequate sudsing over a range of water hardness.
    Type: Grant
    Filed: March 31, 1975
    Date of Patent: May 17, 1977
    Assignee: The Procter & Gamble Company
    Inventors: Lawrence A. Gilbert, John W. Schuette