APRL

APRL

The Archaeological Preservation Research Laboratory (APRL), in conjunction with the Conservation Research Laboratory (CRL), and Dow Corning, Inc. in Midland, MI, initiated research on the uses of organo-silicone chemistry in the conservation of archaeological material. This cooperative venture has been very productive, as is indicated by the various reports found in the Reports section. This research has resulted in the issuance of several U.S. Patents:

Methods of Conserving Waterlogged Materials
U.S. Patent Number 5,789,087, issued August 4, 1998 (view .PDF)

Methods of Conserving Waterlogged Materials
U.S. Patent Number 6,020,027 issued February. 1, 2000 (view .PDF)

Conservation of Organic and Inorganic Materials
U.S. Patent Number 6,022,589, issued February 8, 2000 (view .PDF)

Methods of Conserving Waterlogged Materials
U.S. Patent Number 6,432,553, issued August 13, 2002 (view .PDF)

Conservation of Organic and Inorganic Materials
U.S. Patent Number 6,835,411, issued December 28, 2004 (view .PDF)

Conservation of Organic and Inorganic Materials
U.S. Patent Number 6,881,435, issued April 19, 2005 (view .PDF)

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At present, Corcoran Laboratories, Inc. of Bay City, Michigan, has the sole license for the preservation technology covered by these patents.

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