Patents by Inventor John B. Leonard, Jr.

John B. Leonard, Jr. 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).

  • High strength asphalt cement paving composition
    Patent number: 4801332
    Abstract: A paving composition formed of aggregate and asphalt cement in which the asphalt cement is treated with a combination of a primary catalyst comprising a compound chosen from the group consisting of asphalt cement soluble organic-manganese, organic-cobalt, and organic-copper compounds, or a mixture of two or more thereof, and a secondary catalyst comprising an asphalt cement soluble organic-iron compound.
    Type: Grant
    Filed: June 15, 1987
    Date of Patent: January 31, 1989
    Assignee: Chemcrete International Corp.
    Inventors: Philip T. Selfridge, John B. Leonard, Jr., Patrick K. Clancey
  • Modified asphalt paving compositions
    Patent number: 4244747
    Abstract: A modified asphalt cement including manganese chloride (MnCl.sub.2) dispersed throughout the asphalt cement. A paving composition including the above material forming a binder for aggregate used for paving roads or the like.
    Type: Grant
    Filed: March 12, 1979
    Date of Patent: January 13, 1981
    Assignee: Chem-Crete Corporation
    Inventors: John B. Leonard, Jr., Philip T. Selfridge
  • High strength modified asphalt paving composition
    Patent number: 4234346
    Abstract: A paving composition formed of aggregate mixed with substantially unblown asphalt cement (neither emulsified nor cut-back) including a soluble organic-manganese compound either alone or in combination with organic-cobalt or organic-copper compounds for improved strength. The composition is employed for paving roads by conventional techniques.
    Type: Grant
    Filed: November 24, 1978
    Date of Patent: November 18, 1980
    Assignee: Chem-Crete Corporation
    Inventors: Laurence Latta, Jr., John B. Leonard, Jr.
  • Epoxy resin soil stabilizing compositions
    Patent number: 4107112
    Abstract: A method of stabilizing soil, such as sub-bases, bases and wear courses of roads and airport runways, sand dunes and other loose, particulate material, which includes mixing an epoxy resin ester of unsaturated fatty acids with soil, preferably at the optimum moisture content of the soil, in ratios of as little as one part of chemical to 200 parts of soil, with the amount depending on the use. Optionally, small but effective quantities of cement may be added to the composition in the range of about 2 to 20% of the weight of the soil. A soil coating or top dressing may be applied to the resultant structure if desired.
    Type: Grant
    Filed: July 28, 1975
    Date of Patent: August 15, 1978
    Inventors: Laurence Latta, Jr., John B. Leonard, Jr
  • Method of soil stabilization
    Patent number: 4106296
    Abstract: A soil stabilizer and a method of stabilizing soil, such as sub-bases, bases and wear courses of roads and airport runways, sand dunes and other loose, particulate material, which includes mixing an epoxy resin ester of unsaturated fatty acids with soil, preferably at the optimum moisture content of the soil, in ratios of as little as one part of chemical to 200 parts of soil, with the amount depending on the use. Optionally, small but effective quantities of cement may be added to the composition in the range of about 2 to 20% of the weight of the soil. A soil coating or top dressing may be applied to the resultant structure if desired. A method of agricultural reclamation, including a method of establishing plant cover, is also disclosed.
    Type: Grant
    Filed: July 23, 1976
    Date of Patent: August 15, 1978
    Inventors: John B. Leonard, Jr., Laurence Latta, Jr.