Company Filing History:
2 out of 6 
1 out of 4 Years Active: 1987-1990
Title: Helena Ljusberg-Wahren: Pioneering Innovations in Coal-Water Dispersions
Introduction
Helena Ljusberg-Wahren is a notable inventor based in Söderhamn, Sweden. With a dedication to advancing chemical processes, she has secured two patents that showcase her innovative approach to creating dispersing agents for coal particles in water.
Latest Patents
Her latest innovations include a coal-water dispersion agent designed to enhance the dispersal of solid particles like coal in water. This agent is derived from tall oil pitch, which is partially esterified with a polyalkylene glycol predominantly composed of ethylene oxide units with a molecular weight exceeding 600. The invention also involves a method for preparing this dispersing agent, where the reactants are heated between 200°C and 285°C until the maximum acid value of the mixture decreases by at least two units. Furthermore, she has developed a specific coal-water dispersion that comprises coal particles along with polymerized fatty and rosin acids, which are similarly esterified, providing a reliable solution for coal dispersion in water applications.
Career Highlights
Throughout her career, Helena has made significant contributions to the field while working with esteemed organizations. She has been associated with Bergvik Kemi AB and Fluid-Carbon International AB, where her expertise in chemical engineering and invention took shape. Her commitment to advancing the industry through her work has established her as an influential figure among peers.
Collaborations
Helena’s work reflects her ability to collaborate effectively within the chemical engineering realm. Her partnerships with Bergvik Kemi AB and Fluid-Carbon International AB have allowed her to enhance her inventions, ensuring they meet the needs of industrial applications in the field of coal-water dispersion.
Conclusion
Helena Ljusberg-Wahren is an inspiring inventor whose innovations have profound implications for the efficiency of coal-water dispersion technologies. Her patents not only demonstrate her technical prowess but also her commitment to improving industrial processes. As she continues her journey in innovation, her contributions are sure to leave a lasting impact in the field.
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.