Patents by Inventor Leo B. Aller

Leo B. Aller 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).

  • Process upset-resistant inorganic supports for bioremediation
    Patent number: 5569634
    Abstract: Porous bodies are produced which are suitable for use as supports for catalysts, including living cells, such as bacteria and which are upset resistant to acids and bases. The bodies have a significantly large average pore diameter of about 0.5 to 100 microns, (i.e. 5,000 to 1,000,000 .ANG.) and a total pore volume of about 0.1 to 1.5 cc/g with the large pores contributing a pore volume of from about 0.1 to 1.0 cc/g. The bodies are made by preparing a mixture of ultimate particles containing a zeolite and one or more optional ingredients such as inorganic binders, extrusion or forming aids, burnout agents, or a forming liquid, such as water. In a preferred embodiment, the ultimate particles are formed by spray drying.
    Type: Grant
    Filed: December 12, 1994
    Date of Patent: October 29, 1996
    Assignee: W. R. Grace & Co.-Conn.
    Inventors: James G. Miller, Michael J. Wax, Richard F. Wormsbecher, Leo B. Aller, Donald R. Durham, Alan B. Chmurny
  • Process upset-resistant inorganic supports for bioremediation
    Patent number: 5403799
    Abstract: Porous bodies are produced which are suitable for use as supports for catalysts, including living cells, such as bacteria and which are upset resistant to acids and bases. The bodies have a significantly large average pore diameter of about 0.5 to 100 microns, (i.e. 5,000 to 1,000,000 .ANG.) and a total pore volume of about 0.1 to 1.5 cc/g with the large pores contributing a pore volume of from about 0.1 to 1.0 cc/g. The bodies are made by preparing a mixture of ultimate particles containing a zeolite and one or more optional ingredients such as inorganic binders, extrusion or forming aids, burnout agents, or a forming liquid, such as water. In a preferred embodiment, the ultimate particles are formed by spray drying.
    Type: Grant
    Filed: December 21, 1992
    Date of Patent: April 4, 1995
    Assignee: W. R. Grace & Co.-Conn.
    Inventors: James G. Miller, Michael J. Wax, Richard F. Wormsbecher, Leo B. Aller, Donald R. Durham, Alan B. Chmurny