This inventor holds 1 USPTO granted patent and 2 published patent applications and 3 EPO patents. Top assignees: Covestro Deutschland Ag, Lanxess Deutschland Gmbh. Active years: 2026.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Company Filing History:
1 out of 689 
1 out of 389 
Years Active: 2026
Title: Hans-Jürgen Quella: Innovator in Chemical Processes
Introduction
Hans-Jürgen Quella is a notable inventor based in Leverkusen, Germany. He has contributed to the field of chemical processes through his work at companies such as Covestro Deutschland AG and Lanxess Deutschland GmbH. Although he currently holds no granted patents, his innovative spirit is reflected in his latest patent applications.
Latest Patent Applications
1. **Process for Preparing Cresol from Ditolyl Ether** - This invention relates to a novel process for preparing cresol from ditolyl ether.
2. **Method for the Hydrogenation of Aromatic Nitro Compounds** - This invention encompasses a method for producing a doped copper-tetraammine-salt-based hydrogenation catalyst suitable for the hydrogenation of an aromatic nitro compound, resulting in the production of an aromatic amine. The catalyst comprises copper in metal or oxidic form and a doping metal selected from iron, cobalt, manganese, vanadium, zinc, or a mixture thereof, supported on a carrier made of silicon dioxide and/or silicon carbide shaped bodies.
Conclusion
Hans-Jürgen Quella's contributions to chemical processes highlight his innovative approach and dedication to advancing the field, even in the absence of granted patents.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile