John D Stelter

Title: John D. Stelter - Innovator in Biodegradable Filtration Technologies

Introduction

John D. Stelter, an accomplished inventor based in St. Joseph Township, WI, has made significant contributions to the field of material science and air filtration. With a remarkable portfolio of 25 patents, Stelter has focused on developing innovative solutions that enhance air quality and sustainability.

Latest Patents

One of Stelter's latest innovations is the "Multi-layer, biodegradable composites for air filtration." This invention incorporates at least two nonwoven web layers made from biodegradable materials, creating a composite that is highly effective for air filtration. The design allows for a high dust holding capacity while maintaining strength, dimensional stability, and a low pressure drop, making it particularly suitable for various filtration applications.

Another notable patent is the "Flat-fold respirator with monocomponent filtration/stiffening monolayer." This flat-fold respirator features a stiff filtration panel that is seamlessly integrated into the respirator body. The panel is composed of a porous monocomponent nonwoven web with charged intermingled fibers, achieving a Gurley Stiffness greater than 200 mg while ensuring minimal pressure drop. Additionally, this design eliminates the need for extra stiffening layers and can be easily folded for storage. Notably, manufacturing scrap can be recycled to produce more filtration panels, emphasizing sustainability.

Career Highlights

Stelter's work is primarily associated with 3M Innovative Properties Company, where he has been at the forefront of research in innovative filtering technologies. His extensive experience in the field has enabled him to create solutions that address critical environmental challenges.

Collaborations

Throughout his career, Stelter has collaborated with fellow inventors and researchers such as Andrew R. Fox and Michael R. Berrigan. These collaborations have facilitated the sharing of knowledge and expertise, further driving the innovation process and leading to successful patent applications.

Conclusion

John D. Stelter's contributions to biodegradable air filtration technologies not only highlight his inventive spirit but also underscore the importance of sustainability in modern inventions. With a solid track record of 25 patents, his ongoing work continues to inspire future innovations in the field of material science and environmental protection.