Patents by Inventor Venkat B. Maroju

Venkat B. Maroju 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).

  • Patent number: 5593542
    Abstract: A method for recovering fiber useful for papermaking from an effluent stream includes a primary process for treating an effluent stream to separate usable fiber from contrary matter, and secondary operations, supplementing the primary process, to treat the contrary matter rejected by the primary process to recover usable fibers contained in the reject matter. In addition, the secondary processing steps separate the reject material into organic and inorganic fractions, which may be usable in other processes. The method of the invention does not require the addition of water as do conventional processes, simplifies handling, disposal, and reduces the costs of disposal.
    Type: Grant
    Filed: May 8, 1995
    Date of Patent: January 14, 1997
    Assignee: Marcal Paper Mills, Inc.
    Inventors: Ernest P. Wolfer, Brent Willemsen, Venkat B. Maroju, Andres Martiny