David Dwight Mulligan

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Covington, VA, US

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Patents Grantslast 30 patents

Information Patent Grant
Debarking wood without introducing contaminants into the wood
- Patent number 5,868,186
- Issue date Feb 9, 1999
- Westvaco Corporation
- David Dwight Mulligan
- B27 - WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL NAILING OR STAPLING MACH...
Information Patent Grant
Debarking and chipping folded whole-trees
- Patent number 5,803,142
- Issue date Sep 8, 1998
- Westvaco Corporation
- David Dwight Mulligan
- B27 - WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL NAILING OR STAPLING MACH...