Class B27K : PROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FOR IMPREGNATING, STAINING, DYEING, BLEACHING OF WOOD OR SIMILAR MATERIALS, OR TREATING OF WOOD OR SIMILAR MATERIALS WITH PERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR
Subclass 3/30: Impregnating wood (staining or dyeing wood B27K 5/02 ; combined impregnating and drying B27K 5/04 ) Inorganic impregnating agents Compounds of fluorine
| Patent # | Title | Filing Date | Issue Date | Patent Owner |
|---|---|---|---|---|
| 11140901 | Wood preservative and method for producing same | Dec 11, 18 | Oct 12, 21 | Koppers Performance Chemicals Inc. |
| 10085453 | Controlled release, wood preserving composition with low-volatile organic content for treating in-service utility poles, posts, pilings, cross-ties and other wooden structures | Oct 04, 17 | Oct 02, 18 | OSMOSE UTILITIES SERVICES, INC. |
| 9808015 | Controlled release, wood preserving composition for treating in-service utility poles, posts, pilings, cross-ties and other wooden structures | Jan 31, 17 | Nov 07, 17 | OSMOSE UTILITIES SERVICES, INC. |
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