This inventor holds 2 USPTO granted patents. Top assignee: Bayer Aktiengesellschaft. Active years: 1985-1986.
Location History:
- Leverkusen, DE (1985)
- Beedenbostel, DE (1986)
Company Filing History:
Years Active: 1985-1986
Title: Hellmut Hannes: Innovator in Optical Plastic Films
Introduction
Hellmut Hannes is a notable inventor based in Leverkusen, Germany. He has made significant contributions to the field of optical plastic films, holding a total of 2 patents. His work focuses on enhancing the optical properties of plastic materials, particularly for applications in liquid crystal displays.
Latest Patents
Hannes's latest patents include a process for the production of plastic films with improved optical characteristics. This innovative method involves creating an optically uniaxial birefringent plastic film through casting or extrusion. Subsequently, irreversible molecular reorientation is achieved in surface layers of the film by heating or immersion in a solvent. This process eliminates or compensates for the initial birefringence, resulting in a birefringence-free plastic film. Another significant patent describes a birefringence-free arrangement of plastic foils, where two foils with a single principal optical axis are arranged parallel to each other at a specific angle. This arrangement is particularly useful in devices utilizing polarized light, especially in liquid crystal displays.
Career Highlights
Hellmut Hannes is associated with Bayer Aktiengesellschaft, a leading global company in the pharmaceutical and life sciences sector. His work at Bayer has allowed him to focus on innovative solutions in the field of optical materials.
Collaborations
Hannes has collaborated with notable colleagues such as Hans-Leo Weber and Uwe Claussen. Their combined expertise has contributed to advancements in the development of optical films.
Conclusion
Hellmut Hannes is a distinguished inventor whose work in optical plastic films has paved the way for advancements in display technologies. His innovative patents reflect a commitment to enhancing the functionality of materials used in modern applications.