Patents by Inventor Janet G. Hering

Janet G. Hering 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).

  • Iron (III)-doped calcium alginate gel sorbents for sorption of arsenate and selenite
    Patent number: 6203709
    Abstract: Systems and methods for removing oxyanionic contaminants, such as arsenate (As(V)) and selenite (Se(IV)), from polluted water. The system utilizes calcium alginate which has been doped with ferric iron. The system is operated as either a batch-type or continuous feed purifier. A dehydrator is included for drying spent absorbent beads to form a dry disposable solid waste product.
    Type: Grant
    Filed: November 12, 1998
    Date of Patent: March 20, 2001
    Assignee: California Institute of Technology
    Inventors: Joon H. Min, Janet G. Hering