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Donald Hejna
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Bemidji, MN, US
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Patents Grants
last 30 patents
Information
Patent Grant
Termite resistant and fungal resistant oriented strand board and me...
Patent number
7,485,286
Issue date
Feb 3, 2009
Potlatch Corporation
Donald J. Hejna
B27 - WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL NAILING OR STAPLING MACH...
Information
Patent Grant
Wood-based product treated with silicone-containing material and di...
Patent number
7,404,918
Issue date
Jul 29, 2008
Potlatch Corporation
Donald J. Hejna
B27 - WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL NAILING OR STAPLING MACH...
Information
Patent Grant
Method for manufacturing wood-based composite panel having foil ove...
Patent number
7,378,044
Issue date
May 27, 2008
Potlatch Corporation
Donald J. Hejna
B27 - WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL NAILING OR STAPLING MACH...
Information
Patent Grant
Termite resistant and fungal resistant oriented strand board and me...
Patent number
7,264,796
Issue date
Sep 4, 2007
Potlatch Corporation
Donald Hejna
B27 - WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL NAILING OR STAPLING MACH...
Information
Patent Grant
Termite resistant and fungal resistant oriented strand board and me...
Patent number
6,818,317
Issue date
Nov 16, 2004
Potlach Corporation
Donald J. Hejna
B27 - WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL NAILING OR STAPLING MACH...
Information
Patent Grant
Wood-based composite panel having foil overlay and methods for manu...
Patent number
6,800,352
Issue date
Oct 5, 2004
Potlach Corporation
Donald J. Hejna
B27 - WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL NAILING OR STAPLING MACH...
Patents Applications
last 30 patents
Information
Patent Application
Termite resistant and fungal resistant oriented strand board and me...
Publication number
20070023120
Publication date
Feb 1, 2007
Potlatch Corporation
Donald Hejna
B27 - WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL NAILING OR STAPLING MACH...
Information
Patent Application
Termite resistant and fungal resistant oriented strand board and me...
Publication number
20050037202
Publication date
Feb 17, 2005
Potlatch Corporation
Donald J. Hejna
B27 - WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL NAILING OR STAPLING MACH...
Information
Patent Application
Termite resistant and fungal resistant oriented strand board and me...
Publication number
20030026942
Publication date
Feb 6, 2003
Donald Hejna
B27 - WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL NAILING OR STAPLING MACH...