This inventor holds 21 USPTO granted patents and 6 EPO patents, primarily in Agitator Mill Technology. Top assignees: Draiswerke Gmbh, Evv-Vermogensverwaltungs-Gmbh, Buhler Ag. Active years: 1988-2020.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Location History:
- Mannheim, DE (1988 - 1989)
- Grunstadt, DE (1991 - 2007)
- Grünstadt, DE (2002 - 2020)
Company Filing History:
11 out of 38 
4 out of 4 
3 out of 217 
Years Active: 1988-2020
Areas of Expertise:
Title: Innovations of Norbert Stehr: A Pioneer in Agitator Ball Mill Technology
Introduction: Norbert Stehr, based in Grunstadt, Germany, is a prolific inventor known for his contributions to the field of milling technology. With an impressive portfolio of 21 patents, Stehr has made significant advancements, particularly in the design and functionality of agitator ball mills.
Latest Patents: Among his notable inventions are two recent patents that improve the efficiency and design of agitator ball mills. The first patent describes an agitator ball mill that features agitating discs mounted on a rotating shaft. Here, adjacent discs create distinct grinding cells, each equipped with strategically placed grinding material passage openings. These openings are engineered to optimize the distance from the grinding chamber's inner boundary, ensuring effective material transfer between grinding cells.
The second patent presents an innovative design for an agitator ball mill that incorporates agitating discs with entraining profiles formed by channels. This design enhances the interaction between the milling material and the agitating mechanism, improving the overall performance of the milling process.
Career Highlights: Stehr's career includes impactful roles in companies such as Draiswerke GmbH and Evv-Vermögensverwaltungs-GmbH, where he has applied his engineering expertise to develop advanced milling technologies. His work has fundamentally shaped the standards in the industry.
Collaborations: Throughout his career, Norbert Stehr has collaborated with talented professionals including Philipp Schmitt and Benedikt Simons. These partnerships have fostered innovative ideas, resulting in groundbreaking technologies that continue to influence the milling sector.
Conclusion: Norbert Stehr is a distinguished inventor whose contributions to the field of agitator ball mills demonstrate an unwavering commitment to innovation. With each patent, he continues to pave the way for advancements in milling technology, solidifying his reputation as a key player in the industry.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile