Location History:
- Reno, NV (US) (1986)
- South St Paul, MN (US) (2007)
Company Filing History:
1 out of 4,360 
1 out of 832,761 Years Active: 1986-2007
Title: The Innovative Contributions of Donald C. Stephan
Introduction
Donald C. Stephan is a notable inventor based in Reno, NV (US). He has made significant contributions to the field of innovation, holding a total of 3 patents. His work reflects a commitment to enhancing everyday products through inventive design and functionality.
Latest Patents
Among his latest patents is the "Combined toothbrush and gum massager," which showcases his ability to merge functionality with user convenience. Another significant invention is the "Monocoque bicycle frame." This innovative frame features a body defined by right and left side panels, top and bottom panels, and a bifurcated rearward portion. The design includes a rear wheel well insert, creating a continuous internal space that is compression loaded or tensile prestressed with rigid foam plastic. This construction enhances torsional rigidity and resistance to impact distortion. The pedal sprocket and chain are external to the hollow frame, maintaining the continuity of the body cavity and its compression loading. This design choice minimizes weight while optimizing aerodynamic configuration. The diamond-shaped profile of the frame allows for a construction of a pair of triangles connected back-to-back, providing optimum strength against both torsional and vertical loading.
Career Highlights
Throughout his career, Donald C. Stephan has worked with various companies, including IGT. His experience in the industry has allowed him to develop and refine his innovative ideas, contributing to advancements in product design and functionality.
Collaborations
Donald has collaborated with notable individuals such as Timothy M. Sharp and John G. Drews. These partnerships have likely fostered a creative environment that encourages the exchange of ideas and innovation.
Conclusion
Donald C. Stephan's contributions to innovation through his patents and collaborative efforts highlight his role as a significant figure in the field of invention. His work continues to inspire advancements in product design and functionality.