Company Filing History:
2 out of 106 
1 out of 6 Years Active: 1976-1997
Title: Douglas Elliot Rogerson: Innovator in Composite Wood Products
Introduction
Douglas Elliot Rogerson is an accomplished inventor based in Richmond, CA. He holds a total of 3 patents that showcase his innovative contributions to the field of composite wood products. His work emphasizes the integration of advanced materials and sustainable practices.
Latest Patents
One of Rogerson's latest patents is for a fiber-cement trim board. This product features a fiber-cement core layer that is faced with two fiber-cement surface layers of equal thickness. The cement-to-wood ratio by weight ranges between 2 and 3.5, with at least 70% of the wood strands exceeding a length of 10 mm. Each surface layer consists of a fiber-cement mixture containing wood strands, with at least 80% of these strands measuring less than 4 mm in length. Additionally, the board is protected on its two main faces by a water barrier coating.
Another notable patent involves a composite wood product made from discrete wood particles. These particles are secured together by a cured bisphenol A formaldehyde resin, which is formulated from an A-stage bisphenol A formaldehyde resin. The resin has a mole ratio of 1 to between 2.5 and 4, and includes between 3 and 11% of caustic measured as sodium hydroxide based on the weight of resin solids. This innovative composite wood product features light-colored glue lines that closely match the wood color, making the glue lines less noticeable.
Career Highlights
Throughout his career, Rogerson has worked with several prominent companies, including Macmillan Bloedel Limited and Trus Joist Macmillan Limited Partnership. His experience in these organizations has contributed significantly to his expertise in composite materials and wood products.
Collaborations
Rogerson has collaborated with notable professionals in his field, including Marek Jan Gnatowski and Ronald M. Stout. These collaborations have further enriched his work and innovation in composite wood technologies.
Conclusion
Douglas Elliot Rogerson is a significant figure in the development of composite wood products, with a focus on sustainability and advanced materials. His patents reflect a commitment to innovation and quality in the industry.
Inventor’s Patent Attorneys refers to legal professionals with specialized expertise in representing inventors throughout the patent process. These attorneys assist inventors in navigating the complexities of patent law, including filing patent applications, conducting patent searches, and protecting intellectual property rights. They play a crucial role in helping inventors secure patents for their innovative creations.