Company Filing History:
9 out of 8,684 
2 out of 4 
2 out of 1,991 
Years Active: 2000-2013
Title: The Innovations of John D. Bruno
Introduction
John D. Bruno is a notable inventor based in Bowie, MD, with a remarkable portfolio of 11 patents. His work primarily focuses on advancements in quantum cascade lasers and semiconductor light sources, showcasing his expertise in the field of photonics.
Latest Patents
One of his latest patents is titled "Quantum Cascade Lasers with Electrically Tunable Emission Wavelengths." This invention provides a quantum cascade laser (QCL) device that utilizes an electrically controlled refractive index through the Stark effect. By adjusting the electric field in the active area, the energy spacing between the lasing energy levels can be modified, allowing for control over the effective refractive index in the spectral region near the laser wavelength. Another significant patent is for a "Semiconductor Light Source with Electrically Tunable Emission Wavelength." This semiconductor light source consists of a substrate, lower and upper claddings, and a waveguide region with an embedded active area. The active region includes several heterojunction periods sandwiched between charge accumulation layers, enabling the tuning of the ground state energy and radiation wavelength by varying the voltage drop across the active region.
Career Highlights
Throughout his career, John D. Bruno has contributed to significant projects while working with the US Government as represented by the Secretary of the Army and Maxion Technologies, Inc. His innovative work has had a lasting impact on the field of laser technology and semiconductor devices.
Collaborations
John has collaborated with notable individuals such as Richard L. Tober and Donald E. Wortman, further enhancing the scope and impact of his inventions.
Conclusion
John D. Bruno's contributions to the field of photonics through his patents and collaborations highlight his role as a leading inventor in the industry. His work continues to influence advancements in laser technology and semiconductor applications.
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.