This inventor holds 11 USPTO granted patents, plus 3 CIPO patents. Top assignees: Union Camp Patent Holding, Inc., Union Camp Holding, Inc., Union Camp Patent Holdings, Inc.. Active years: 1992-1996.
Location History:
- Ewing, NJ (US) (1992)
- Columbia, SC (US) (1992 - 1996)
Company Filing History:
9 out of 23 
1 out of 3 
1 out of 4 Years Active: 1992-1996
Title: Bruce F. Griggs: Innovator in Pulp Delignification
Introduction
Bruce F. Griggs is a notable inventor based in Columbia, SC, with a significant contribution to the field of pulp processing. He holds a total of 11 patents, showcasing his expertise and innovative spirit in developing environmentally friendly methods for delignification.
Latest Patents
Among his latest patents, one is titled "Process for high consistency delignification using a low consistency." This process involves washing unbleached pulp with an aqueous alkaline solution in a wash press, which helps to uniformly distribute alkaline material throughout the pulp. The pulp exiting the wash press has a consistency above 18%, ideally between 25 to 35 percent by weight. This high consistency pulp is then treated with oxygen to achieve delignification, significantly reducing the amount of alkaline material needed compared to traditional methods. Another notable patent is the "Method for chelation of pulp prior to ozone delignification." This innovative process allows for delignifying and bleaching lignocellulosic pulp without using elemental chlorine. It partially delignifies the pulp to a K No. of about 10 or less and a viscosity greater than 13 cps, followed by further delignification with ozone. This method not only enhances the quality of the pulp but also achieves major environmental improvements by eliminating the use of elemental chlorine.
Career Highlights
Throughout his career, Bruce has worked with prominent companies such as Union Camp Patent Holding, Inc. and Union Camp Holding, Inc. His work has significantly impacted the pulp and paper industry, particularly in developing sustainable practices.
Collaborations
Bruce has collaborated with notable individuals in his field, including Thomas P. Gandek and Michael A. Pikulin. These collaborations have contributed to the advancement of innovative solutions in pulp processing.
Conclusion
Bruce F. Griggs stands out as a pioneering inventor in the field of pulp delignification. His innovative patents and commitment to environmental sustainability have made a lasting impact on the industry.