Patents by Inventor Erwin M. Jankowiak

Erwin M. Jankowiak 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).

  • Method for stabilizing soil
    Patent number: 4168593
    Abstract: Soil is stabilized to resist erosion due to weather exposure by depositing a latex coagulating amount of an aqueous solution of a polyvalent metal salt on the soil surface followed thereafter by depositing on that so treated surface a soil stabilizing amount of an aqueous polymer latex coagulable by said salt.
    Type: Grant
    Filed: January 21, 1977
    Date of Patent: September 25, 1979
    Assignee: The Dow Chemical Company
    Inventor: Erwin M. Jankowiak
  • Method for controlling soil erosion
    Patent number: 4071400
    Abstract: Erosion of soil is inhibited by forming a wind and rain resistant mat thereon by the method whereby a water soluble cellulose ether is dispersed in a latex containing at least 2.0 percent solids of an interpolymer of an alkenyl aromatic monomer, a conjugated diolefin and an unsaturated carboxylic acid and an organo sulfonate; the composition diluted, plant fibers dispersed therein and the so formed dispersion deposited on the soil in the form of a covering layer.
    Type: Grant
    Filed: April 5, 1976
    Date of Patent: January 31, 1978
    Assignee: The Dow Chemical Company
    Inventor: Erwin M. Jankowiak
  • Straw mats for soil erosion control
    Patent number: RE28950
    Abstract: Straw mats useful for covering soil to prevent wind and rain erosion are made by randomly distributing straw into a layer and binding the stalks together at their points of contact with at least about 75 pounds per ton of straw of a water resistant adhesive comprising a polymer of an alkenyl aromatic monomer, an open chain conjugated diene and an unsaturated carboxylic monomer blended with a water soluble cellulose ether and with an organo sulfonate.
    Type: Grant
    Filed: August 11, 1975
    Date of Patent: August 31, 1976
    Assignee: The Dow Chemical Company
    Inventors: Erwin M. Jankowiak, Gerald H. Brandt