Richard E Freis is a notable inventor based in Bloomington, MN (US). He has made significant contributions to the field of fiber processing, particularly in the pulping of virgin cellulosic fiber. With a total of 3 patents to his name, Freis has developed innovative methods that enhance the efficiency and effectiveness of fiber treatment processes.

Latest Patents

Freis's latest patents include a method of brown stock washing, which discloses an improved technique for washing brown stock. This method utilizes a nonionic surfactant in combination with a polyelectrolyte dispersant, and preferably a solvent, to enhance the removal and recovery of cooking chemicals and organics from the pulp. Another significant patent is focused on methods of decontaminating secondary fiber. This method involves substantially removing and dispersing resinous or waxy contaminants from contaminant-containing secondary fiber during repulping. It combines the contaminant-containing secondary fiber in an aqueous repulping medium with a substituted oxyethylene glycol nonionic surfactant and a water-soluble, low molecular weight polyelectrolyte dispersant at an elevated temperature.

Career Highlights

Throughout his career, Richard E Freis has worked with reputable companies such as Diamond Shamrock Chemicals Company and Economics Laboratory, Inc. His experience in these organizations has contributed to his expertise in fiber processing technologies.

Collaborations

Freis has collaborated with notable individuals in his field, including Thomas R Oakes and James E Maloney. These collaborations have likely enriched his work and led to further advancements in his innovative methods.

Conclusion

Richard E Freis stands out as an influential inventor in the fiber processing industry. His innovative patents and career achievements reflect his commitment to improving fiber treatment processes. His contributions continue to impact the field positively.