Trends in U.S. wood-based industrial technology : an evaluation of assigned patents.

Margl, Richard A.Ellefson, Paul V.2008-04-212008-04-211985-05http://purl.umn.edu/5922This paper discusses the evaluation of patents as a measure of technical progress within the U.S. wood-based industry.en-USpatentswood-based industryTrends in U.S. wood-based industrial technology : an evaluation of assigned patents.Report