Wyoming Inventors Database
Wyoming Inventors : Name Search Results

Donald Robertson has a total of 4 patent(s) in the database.

* Some patents in this database have one or more inventors, not all of whom may be from Wyoming.

 

  1. Patent Number: 5759507     View patent at USPTO
    Title: PROCESS FOR PRODUCTION OF DENSE SODA ASH FROM SODA ASH FINES
    Assignee: Solvay Minerals, Inc.
    Issue Date: June 02, 1998
    Inventor(s): David R. Delling, Taos, NM
    Kevin L. Green, Green River, WY
    James D. Phillip, Green River, WY
    Donald M. Robertson, Green River, WY

  2. Patent Number: 7473407     View patent at USPTO
    Title: MAGNETIC SEPARATION PROCESS FOR TRONA
    Assignee: Solvay Chemicals
    Issue Date: January 6, 2009
    Inventor(s): James D. Phillip, Green River, WY
    Donald M. Robertson, Green River, WY
    William E. Stuble, Green River, WY
    Mike J. Ventura, Green River, WY

  3. Patent Number: 7770735     View patent at USPTO
    Title: MAGNETIC SEPARATION PROCESS FOR TRONA
    Assignee: Solvay Chemicals Inc. (Houston, TX)
    Issue Date: August 10, 2010
    Inventor(s): James D. Phillip, Green River, WY
    Donald M. Robertson, Green River, WY
    William E. Stuble, Green River, WY
    Mike J. Ventura, Green River, WY

  4. Patent Number: 8366793     View patent at USPTO
    Title: METHOD OF DECARBONATION AND ITS USE IN PRODUCING CRYSTALLINE SODIUM SULFITE OR OTHER ALKALI PRODUCTS
    Assignee: Solvay Chemicals, Inc. (Houston, TX)
    Issue Date: February 5, 2013
    Inventor(s): Jim Kisielewski, Green River, WY
    Donald M. Robertson, Green River, WY
    Robert N. Skogley, Missoula, MT