David P. Hanefeld is a notable inventor based in Northridge, CA. He has made significant contributions to the field of invention, holding a total of 2 patents. His work reflects a commitment to innovation and practicality, addressing everyday needs through his inventions.

Latest Patents

One of Hanefeld's latest patents is for a self-adhesive stamp construction. This innovative stamp product adheres to a release liner and is imprinted with graphics. The design includes perforations around the graphics, allowing for easy access to each stamp by tearing at the perforations or removing the liner. Another notable patent is for a storage and display device for coins and similar items. This device features one or more compartments that securely hold and display small, generally planar articles. The articles are kept in a dust-tight cavity, ensuring they remain protected while being viewable through a transparent wall.

Career Highlights

Throughout his career, Hanefeld has worked with various companies, including Unicover Corporation. His experience in these organizations has contributed to his development as an inventor and has provided him with valuable insights into the needs of consumers.

Collaborations

Hanefeld has collaborated with notable individuals such as James A. Helzer and Alan I. Green. These partnerships have likely enriched his inventive process and broadened the scope of his projects.

Conclusion

David P. Hanefeld's contributions to innovation through his patents demonstrate his ability to create practical solutions for everyday challenges. His work continues to inspire future inventors and highlights the importance of creativity in addressing consumer needs.