This inventor holds 12 USPTO granted patents, plus 1 CIPO patent. Top assignees: Man Gutehoffnungshutte Aktiengesellschaft, Man Gutehoffnungshutte, Man Takraf Fordertechnik Gmbh. Active years: 1986-1998.
Company Filing History:
5 out of 70 
4 out of 37 
2 out of 7 
Years Active: 1986-1998
Title: The Innovative Contributions of Hartmut Grathoff
Introduction
Hartmut Grathoff, an accomplished inventor based in Wendelstein, Germany, has made significant contributions to the field of open cast mining machinery. With a portfolio of 12 patents, Grathoff's innovations focus on enhancing the efficiency and reliability of mining operations.
Latest Patents
Among Grathoff's latest patents is a cutting drum designed for open cast apparatus, specifically aimed at improving the winning action of mining operations. This innovative cutting drum features cutter tools that allow for robust performance under high wear conditions. The picks used in this design swivel out of the cutting orbit when not in operation, ensuring only the active picks are engaged while excavating. A pivotal design allows these picks to be held securely in place, ensuring high operational reliability even in challenging conditions. Additionally, Grathoff has developed a self-propelled open cast mining apparatus, which enables material excavation in both traveling directions, further enhancing operational flexibility.
Career Highlights
Throughout his career, Hartmut Grathoff has held positions at notable companies, including MAN Gutehoffnungshütte Aktiengesellschaft and MAN Gutehoffnungshütte. His dedication to innovation in the mining industry is evident through his extensive patent portfolio and the practical applications of his designs in real-world scenarios.
Collaborations
Grathoff's work has included collaborations with industry professionals such as Mario Dielefeld and Peter Kurz. These partnerships have been essential in refining his inventions and expanding their applicability within the mining sector.
Conclusion
Hartmut Grathoff stands out as a pivotal figure in the field of mining technology. His inventive spirit and commitment to creating robust machinery have led to advancements that significantly enhance efficiency in open cast mining operations. With a solid foundation of patents and collaborations, Grathoff continues to influence the future of mining innovations.