This inventor holds 4 USPTO granted patents. Top assignees: Aerovironment, Inc., Other. Active years: 1979-1994.
Location History:
- Marstons Mills, MA (US) (1979)
- Simi Valley, CA (US) (1991 - 1994)
Company Filing History:
2 out of 428 
2 out of 834,350 Years Active: 1979-1994
Title: Innovations of Herman M Drees
Introduction
Herman M Drees is a notable inventor based in Simi Valley, CA (US). He has made significant contributions to the field of rotary aircraft technology. With a total of 4 patents to his name, Drees has demonstrated a commitment to advancing aviation innovation.
Latest Patents
One of Drees's latest patents is for a "Rotary aircraft passively stable in hover." This invention features a cylindrically tubular hub that mounts a plurality of outwardly extending, resiliently flexible blades. The blades are uniformly spaced around the hub and fixed in pitch, with outer tips that are downwardly and outwardly turned to balance lift generated during hover. This design provides passive stability to the aircraft. Additionally, he has developed a "Passively stable hovering system," which includes multiple upright ducts and fluid momentum generators to ensure stability during hover.
Career Highlights
Throughout his career, Drees has worked with various companies, including Aerovironment, Inc. His work has focused on creating innovative solutions for rotary aircraft, showcasing his expertise in the field.
Collaborations
Drees has collaborated with notable individuals such as William D Watson and Charles J Sink. These partnerships have contributed to the development of his innovative technologies.
Conclusion
Herman M Drees is a distinguished inventor whose work in rotary aircraft technology has led to several patents and advancements in aviation. His innovative designs continue to influence the industry and pave the way for future developments.