Company Filing History:
Years Active: 1979-2003
Title: The Innovations of Hans Evju
Introduction
Hans Evju is a notable inventor based in Sarpsborg, Norway. He has made significant contributions to the field of agricultural additives and chemical processes. With a total of 2 patents, his work focuses on enhancing growth in livestock and improving the production of valuable compounds.
Latest Patents
One of Hans Evju's latest patents is related to growth enhancers. This invention comprises an additive for compound feed for various animals, including pigs, sheep, goats, poultry, cattle, horses, dogs, cats, and fur-bearing animals. The additive contains an organic or inorganic acid, particularly formic acid, which has a beneficial effect on the treatment of compound feed. The formulation includes a spent sulphite liquor from an acidic or neutral cellulose sulphite cook. The additive is designed to be added to the compound feed in an amount ranging from 0.2% to 3.0%. Additionally, the spent sulphite liquor can be adsorbed on a suitable carrier, such as soy meal or water-adsorbing silicates, to achieve a dry composition.
Another significant patent involves a process for the preparation of 3-methoxy-4-hydroxybenzaldehyde, which is a precursor for vanillin. This process includes ultrafiltrating a waste sulfite liquor to obtain a concentrated lignin-rich fraction, followed by oxidizing this fraction using conventional procedures. The advantages of this process include increased yields of vanillin and a reduction or avoidance of scale formation on production equipment.
Career Highlights
Throughout his career, Hans Evju has worked with prominent companies, including Borregaard Industries Limited. His experience in these organizations has contributed to his expertise in developing innovative solutions in the field of chemical processes and agricultural additives.
Collaborations
Due to space constraints, the details of collaborations will not be included.
Conclusion
Hans Evju's contributions to innovation in agricultural additives and chemical processes highlight his role as a significant inventor. His patents reflect a commitment to enhancing productivity and efficiency in various industries.