Location History:
- Redwood City, CA (US) (1991 - 1995)
- Reno, NV (US) (1995 - 1996)
- Maui, HI (US) (1996 - 1998)
Company Filing History:
5 out of 22 
2 out of 64 
1 out of 27 Years Active: 1991-1998
Title: Innovations of Douglas R Jachowski
Introduction
Douglas R Jachowski is a notable inventor based in Redwood City, California. He holds a total of eight patents, showcasing his contributions to the field of electromagnetic technology. His work primarily focuses on advanced filtering techniques that have significant applications in microwave circuits.
Latest Patents
One of his latest patents is the "Dual-mode dielectric resonator bandstop filter." This invention comprises a microwave circuit, at least one microwave resonator, coupling means that couples electromagnetic energy to and from the microwave resonator, and an impedance transformer. The impedance transformer is designed to enhance the performance of the microwave circuit by utilizing series-connected transmission line sections of different impedances.
Another significant patent is titled "Optimum, multiple signal path, multiple-mode filters and method for." This invention introduces a new design tool that allows for the selection of frequency spectrum filters incorporating multiple signal paths. The design process involves a unique plotting of resonator coupling coefficient values, which leads to the construction of an optimum realization of the filter by adjusting physical resonator couplings.
Career Highlights
Throughout his career, Douglas has worked with several companies, including Allen Telecom Group, Inc. and Orion Industries, Ltd. His experience in these organizations has contributed to his expertise in the field of microwave technology and filter design.
Collaborations
Douglas has collaborated with notable individuals such as David P Halley and Chia-Sam Wey. These collaborations have likely enriched his work and led to innovative advancements in his projects.
Conclusion
Douglas R Jachowski's contributions to the field of electromagnetic technology through his patents and collaborations highlight his innovative spirit and expertise. His work continues to influence advancements in microwave circuit design and filtering techniques.
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.