Company Filing History:
6 out of 1,005 
3 out of 41 
1 out of 111 
Years Active: 1990-2003
Title: **Donald R. Janke: Innovator and Inventor in Magnetic Technology**
Introduction
Donald R. Janke is a prominent inventor based in Milwaukee, WI, recognized for his significant contributions to the field of magnetic technology. With a total of 11 patents to his name, Janke has demonstrated a consistent commitment to innovation, particularly in developing systems that enhance the measurement of magnetic fields and electrical safety in power distribution systems.
Latest Patents
Among his notable inventions, Janke's latest patents include a **Magnetic Anomaly Sensor System** and a **System for Measuring Line to Ground Impedance**. The Magnetic Anomaly Sensor System introduces a method and apparatus for measuring magnetic fields to identify the presence of anomalies based on these measurements. This system implements advanced operations to minimize error components caused by offsets and gains in intensity signal processing.
The System for Measuring Line to Ground Impedance is designed to enhance safety in ungrounded polyphase power distribution systems. This microcontroller-based Line Isolation Monitor (LIM) continuously tracks fault impedance by injecting a measurement current into a ground terminal, allowing for accurate calculation of the hazard current. The LIM’s self-calibration and self-testing capabilities ensure operational reliability and adherence to specified tolerances.
Career Highlights
Janke has had an impactful career working with notable companies in the industry, including Square D Company and Autotrol Corporation. His roles in these organizations have enabled him to apply his inventive skills and drive improvements in electrical safety and diagnostic technologies.
Collaborations
Throughout his career, Janke has collaborated with talented individuals such as James A. Rodrian and Kim J. Watt. These partnerships have contributed to the innovation processes that led to his successful patenting of critical technologies.
Conclusion
Donald R. Janke's work exemplifies the spirit of innovation and dedication to enhancing technological applications in magnetic and electrical safety systems. His patents not only showcase his inventive capabilities but also highlight the importance of collaboration in advancing technology. As a patent holder, Janke continues to inspire future inventors in the field of electrical technology.
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.