Location History:
- North Saint Paul, MN (US) (1978)
- Saint Paul, MN (US) (1990 - 1995)
- Hudson, WI (US) (1998 - 1999)
Company Filing History:
5 out of 7,865 
1 out of 14,076 
Years Active: 1978-1999
Title: The Innovative Journey of James H. Harper
Introduction
James H. Harper, an accomplished inventor based in Saint Paul, Minnesota, has made significant contributions to the field of pavement marking technologies. With a total of six patents to his name, Harper's work focuses on enhancing the durability and functionality of pavement marking materials, ensuring road safety and efficiency.
Latest Patents
Among Harper's latest innovations is a pavement marking tape designed with a unique scrim that is extensible, allowing the tape to conform to irregularities in road surfaces. This innovative feature ensures a stronger bond between the tape and the surface, improving overall performance. Additionally, Harper's patent for a retroreflective article comprises a flexible base sheet that adapts to irregular pavement surfaces. The non-continuous, durable, wear-resistant polymeric top layer adheres to the base sheet while reducing elastic tensile stresses that can cause adhesive failures. Embedded within this layer are retroreflective microspheres and skid-resistant particles, enhancing visibility and safety on the roads.
Career Highlights
Harper's professional journey includes notable tenures at distinguished companies such as Minnesota Mining and Manufacturing Company and 3M Innovative Properties Company. His contributions in these roles have led to advancements in pavement marking technologies, showcasing his expertise and innovative spirit.
Collaborations
Throughout his career, Harper has collaborated with talented coworkers, including Linda S. Smith and Robert H. Brink. These collaborations have played a crucial role in fostering an environment of innovation, further enhancing the quality of projects undertaken and paving the way for new advancements in the field.
Conclusion
James H. Harper stands as a testament to the power of innovation in practical applications. His dedication to improving pavement marking technologies has not only gained him numerous patents but also contributed significantly to road safety and infrastructure. As he continues to innovate, Harper remains an inspiring figure in the world of inventors.