Company Filing History:
4 out of 1,528 
2 out of 35 
2 out of 2,660 
Years Active: 1989-1996
Title: Richard E Cuellar: Innovator in Sterol Modulation
Introduction
Richard E Cuellar is a notable inventor based in Glen Ellyn, IL (US). He holds a total of 6 patents that focus on advancements in the field of biotechnology, particularly in the modulation of sterols in yeast and plants. His innovative work has contributed significantly to the understanding and application of genetic engineering in these organisms.
Latest Patents
Cuellar's latest patents include a composition for modulating sterols in yeast. This patent discloses a structural gene encoding a polypeptide with Δ8-7 sterol isomerase activity. The invention provides a method for modulating the accumulation of sterols in yeast by increasing the expression level of this structural gene in mutant yeast with defects in sterol biosynthetic enzymes. Another significant patent involves a method and composition for increasing sterol accumulation in higher plants. This method entails increasing the copy number of a gene encoding a polypeptide with HMG-CoA reductase activity, which is crucial for enhancing sterol levels in plants.
Career Highlights
Throughout his career, Richard E Cuellar has worked with prominent companies such as Amoco Corporation and Lubrizol Genetics, Inc. His experience in these organizations has allowed him to develop and refine his expertise in genetic engineering and biotechnology.
Collaborations
Cuellar has collaborated with various professionals in his field, including Joseph Chappell, enhancing the scope and impact of his research.
Conclusion
Richard E Cuellar's contributions to the field of biotechnology through his patents and collaborations highlight his role as an innovator in sterol modulation. His work continues to influence advancements in genetic engineering and plant biotechnology.