Location History:
- Höhenkirchen, DE (2010 - 2012)
- Hoehenkirchen, DE (2011 - 2024)
Company Filing History:
5 out of 555 
3 out of 2,093 
2 out of 14,705 
Years Active: 2010-2024
Title: Innovations by Inventor Doris Keitel-Schulz
Introduction
Doris Keitel-Schulz, based in Hoehenkirchen, Germany, is an accomplished inventor with a remarkable portfolio of 10 patents. Her innovative contributions primarily focus on advancements in electrical systems, effectively addressing contemporary energy harvesting challenges.
Latest Patents
Two of her latest patents exemplify her expertise:
1. **Control of Passive Electric Systems Powered by Energy Harvesting**
This patent describes a method for controlling an electric load. The method includes collecting ambient energy through an energy harvesting circuit and charging a buffer capacitor with this energy. It alternates the connection and disconnection of the electrical load and the buffer capacitor to maintain a capacitor voltage above the minimum supply voltage required by the load.
2. **Power Regulation for Lighting Using NFC**
In this innovation, Doris developed a circuit equipped with a supply pin for receiving voltage, non-volatile memory for storing various parameters, and a Near Field Communication (NFC) transceiver to receive data about those parameters. The circuit can deactivate the NFC transceiver when sufficient supply voltage is detected, illustrating an efficient approach to power management for lighting systems.
Career Highlights
Doris has collaborated with prominent companies such as Qimonda AG and Infineon Technologies Austria AG, where she honed her technical skills and contributed to significant advancements in energy management technologies.
Collaborations
Throughout her career, she has worked alongside notable colleagues, including Josef Willer and Michael Specht, whose collaborations have fueled innovative ideas and successful project implementations.
Conclusion
Doris Keitel-Schulz's contributions to the field of electric systems, particularly in energy harvesting and power regulation, underscore her status as a leading innovator. Her patents not only highlight her ingenuity but also pave the way for future advancements in sustainable and efficient energy solutions.
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.