Company Filing History:
6 out of 391 
2 out of 224 
1 out of 211 
Years Active: 1990-2013
Title: The Innovations of Andreas Hohlfeld: A Pioneer in Lighting Technology
Introduction
Andreas Hohlfeld, based in Berlin, Germany, is a distinguished inventor known for his significant contributions to lighting technology. With a total of 11 patents to his name, Hohlfeld has been instrumental in developing advanced lighting solutions that enhance efficiency and functionality in various applications.
Latest Patents
Among his latest innovations are two noteworthy patents. The first is a high-pressure discharge lamp with a starting aid. This invention features a ceramic discharge vessel and a secure connection between a hybrid antenna serving as the starting aid and the lead-through of the discharge vessel. The innovative design incorporates a means between the lead-through and extension, limiting the ohmic resistance to a maximum of 100 ohms.
The second patent pertains to a lamp that is closed at two sides. This design involves an elongate bulb, defining a longitudinal axis, which is sealed at opposite ends with sealing parts. Each end features a cap that contains an electrical contact element, enabling a conductive connection to a supply conductor leading to a luminous element. The contact element design includes an attachment part directed into the lamp's interior, equipped with barbs that contact the tubular extension for secure fit.
Career Highlights
Hohlfeld has worked with notable companies in the lighting industry, including the Patent Treuhand Gesellschaft für elektrische Glühlampen mbH and Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH. His experience in these organizations has contributed to his expertise in developing innovative lighting technologies.
Collaborations
Throughout his career, Hohlfeld has collaborated with esteemed colleagues, including Karen Twesten and Dietrich Fromm. These partnerships have resulted in the successful development of groundbreaking technologies that continue to impact the lighting sector.
Conclusion
Andreas Hohlfeld stands out as a prominent inventor whose work in high-pressure discharge lamps has advanced the field of lighting technology. His innovative patents reflect his commitment to improving efficiency and design in lighting solutions, establishing him as a key figure in this specialized industry.