Location History:
- Seefeld, DE (2013 - 2019)
- Germering, DE (2017 - 2024)
Company Filing History:
5 out of 14,059 
1 out of 213 Years Active: 2013-2025
Title: Ralf Kelz - Innovator in Dental Technology
Introduction
Ralf Kelz is a notable inventor based in Seefeld, Germany. He has made significant contributions to the field of dental technology, holding a total of five patents. His work focuses on improving dental devices and systems, particularly in the area of battery charging and light irradiation.
Latest Patents
Among his latest patents is a method of charging a battery for a dental light irradiation device. This innovative method involves powering the battery at a first charging current while measuring its terminal voltage. It also includes powering the battery at a different second charging current and calculating the battery source voltage to ensure efficient charging. Another significant patent is for a dental irradiation device that features a first light-emitting unit for emitting blue light, which is essential for the light hardening of dental materials. This device also includes a second light-emitting unit and an image sensing unit that work together for simultaneous illumination and image capturing, enhancing both the hardening process and diagnostic capabilities.
Career Highlights
Ralf Kelz is currently associated with 3M Innovative Properties Company, where he continues to develop cutting-edge dental technologies. His work has been instrumental in advancing the functionality and efficiency of dental devices.
Collaborations
Throughout his career, Ralf has collaborated with esteemed colleagues such as Jens Gramann and Manfred Harre. These partnerships have fostered innovation and have contributed
Inventor’s Patent Attorneys refers to legal professionals with specialized expertise in representing inventors throughout the patent process. These attorneys assist inventors in navigating the complexities of patent law, including filing patent applications, conducting patent searches, and protecting intellectual property rights. They play a crucial role in helping inventors secure patents for their innovative creations.