This inventor holds 7 USPTO granted patents. Top assignees: 3M Innovative Properties Company, Other. Active years: 1984-2001.
Location History:
- Saint Paul, MN (US) (1984 - 2000)
- Keizer, OR (US) (2001)
Company Filing History:

Years Active: 1984-2001
Title: Richard B Castle: Innovator in Flame Fusion Technology
Introduction
Richard B Castle is a notable inventor based in Saint Paul, MN (US). He holds a total of 7 patents that showcase his contributions to the field of materials science, particularly in the area of flame fusion technology.
Latest Patents
Castle's latest patents include innovative methods for producing bulk, particulate material that consists of solid, generally ellipsoidal particles. One of his significant inventions is the method for creating fused glassy particulates obtained by flame fusion. This process involves dispersing irregularly shaped feed particles with average sizes of up to 25 microns in a combustible gas mixture. The mixture is then delivered to a flame front while controlling the agglomeration of the particles. The flame front is located in a "wall free" zone, allowing for efficient heating and partial fusion of the particles without agglomeration.
Another notable patent by Castle is the method for producing at least partly fused particulates by flame. This method shares similarities with his previous invention, emphasizing the importance of maintaining particle dispersion and achieving high thermal efficiencies during the fusion process.
Career Highlights
Throughout his career, Richard B Castle has worked with 3M Innovative Properties Company, where he has likely contributed to various advancements in material technologies. His work has had a significant impact on the development of efficient methods for producing particulate materials.
Collaborations
Castle has collaborated with notable individuals in his field, including Warren R Beck and Charles R Kuykendall. These collaborations have likely enriched his research and development efforts, leading to innovative solutions in flame fusion technology.
Conclusion
Richard B Castle's contributions to the field of flame fusion technology are noteworthy, with several patents that demonstrate his innovative approaches to material production. His work continues to influence advancements in this area, showcasing the importance of research and collaboration in driving technological progress.