Patents by Inventor Gary W. Wollrich

Gary W. Wollrich 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 of using a diatomaceous earth containing adsorbent
    Patent number: 5603836
    Abstract: An adsorbent composition containing sugar, vinegar, and diatomaceous earth is disclosed. The sugar, vinegar, and diatomaceous earth are preferably added together in about equal amounts by volume or in amounts of about 20 pounds of sugar, 2 gallons of vinegar, and 100 pounds of diatomaceous earth. The adsorbent composition has particular use in adsorbing petroleum oil from soil, water, or air and in water purification.
    Type: Grant
    Filed: November 29, 1993
    Date of Patent: February 18, 1997
    Inventor: Gary W. Wollrich
  • Diatomaceous earth containing adsorbent, method for making, and methods of use thereof
    Patent number: 5266547
    Abstract: An adsorbent composition containing sugar, vinegar, and diatomaceous earth is disclosed. The sugar, vinegar, and diatomaceous earth are preferably added together in about equal amounts by volume or in amounts of about 20 pounds of sugar, 2 gallons of vinegar, and 100 pounds of diatomaceous earth. The adsorbent composition has particular use in adsorbing petroleum oil from soil, water, or air and in water purification.
    Type: Grant
    Filed: December 22, 1992
    Date of Patent: November 30, 1993
    Inventor: Gary W. Wollrich
  • Method of using a diatomaceous earth containing absorbent
    Patent number: 5213690
    Abstract: An adsorbent composition containing sugar, vinegar, and diatomaceous earth is disclosed. The sugar, vinegar, and diatomaceous earth are preferably added together in about equal amounts by volume or in amounts of about 20 pounds of sugar, 2 gallons of vinegar, and 100 pounds of diatomaceous earth. The adsorbent composition has particular use in adsorbing petroleum oil from soil, water, or air and in water purification.
    Type: Grant
    Filed: September 30, 1990
    Date of Patent: May 25, 1993
    Inventor: Gary W. Wollrich