Madeleine B Fleming

Title: **The Innovative Contributions of Madeleine B Fleming**

Introduction

Madeleine B Fleming, an esteemed inventor based in Lake Elmo, MN, has made significant strides in the field of retroreflective materials. With a total of four patents to her name, her inventive spirit is evident in her latest groundbreaking creations.

Latest Patents

Fleming's most recent patent, titled "Retroreflective Articles Having Moire-Like Pattern," focuses on the development of articles featuring a microstructured surface that reflects light in a unique moiré-like pattern. This innovative approach involves methods for creating a master and its replicas that incorporate tooling to produce sheeting with intricate patterns. A preferred manufacturing method includes forming V-shaped grooves in a substrate, such as a metal plate, where the intersections of three grooves give rise to cube-corner elements. Moreover, the design ensures that adjacent parallel grooves maintain consistent groove spacing and depth, enhancing the effectiveness of the retroreflective sheeting.

Another significant patent is dedicated to "Methods of Making a Master and Replicas Thereof," which also emphasizes the creation of retroreflective sheeting. This method outlines the formation of cube-corner elements with uniform size throughout the array, ensuring precision in the manufacturing process. The patents reflect a meticulous approach to engineering, with preferred groove spacings that fall within 0.0005 inches to 0.007 inches, showcasing her commitment to high standards in innovation.

Career Highlights

Fleming's career is marked by her technical expertise and dedication to advancing her field, particularly through her role at 3M Innovative Properties Company. Her contributions have not only paved the way for new product developments but have also influenced the standards within the industry.

Collaborations

Throughout her career, Fleming has collaborated with notable colleagues, including John F Dreyer and Nelson D Sewall. These partnerships have enabled her to expand the boundaries of her research and enhance the impact of her inventions in retroreflective technology.

Conclusion

Madeleine B Fleming's innovative work in retroreflective materials reflects her exceptional capabilities as an inventor. With a proven track record and a dedication to her craft, she continues to inspire both her peers and the next generation of inventors in the pursuit of excellence in innovation.