Company Filing History:
3 out of 4,197 
1 out of 832,912 Years Active: 1983-2000
Title: Innovations of James M Schellenberg
Introduction
James M Schellenberg is a notable inventor based in Huntington Beach, CA (US). He has made significant contributions to the field of electrical engineering, particularly in the development of high-efficiency amplifiers and electro-optic modulators. With a total of 4 patents to his name, Schellenberg's work has had a considerable impact on modern technology.
Latest Patents
One of his latest patents is a high-voltage, series-biased FET amplifier designed for high-efficiency applications. This integrated circuit two-stage power amplifier features an input connected to an input matching network, with a driver cell providing power to an interstage power dividing network. The design includes multiple similar cells in a second stage, which are connected between the interstage power dividing network and an output matching and combining network, all biased by a series-connected active biasing network. Another significant patent is a microwave frequency range electro-optic modulator. This device operates at microwave electrical input signal frequencies and includes an electrical modulation electrode structure that constitutes a coplanar waveguide. The design maximizes coupling efficiency and minimizes return loss through a Chebyshev impedance matching transformer.
Career Highlights
James M Schellenberg has worked with Hughes Aircraft Company, where he contributed to various innovative projects. His experience in the industry has allowed him to develop cutting-edge technologies that enhance performance in electronic devices.
Collaborations
Throughout his career, Schellenberg has collaborated with notable individuals such as Wing Yau and James H Schaffner. These partnerships have fostered an environment of innovation and creativity, leading to the development of advanced technologies.
Conclusion
James M Schellenberg's contributions to electrical engineering through his patents and collaborations highlight his role as a significant inventor in the field. His work continues to influence advancements in technology and efficiency in electronic systems.