Location History:
- Chicago, IL (US) (2021 - 2023)
- Shanghai, CN (2023)
- Sunnyvale, CA (US) (2002 - 2024)
Company Filing History:
29 out of 501 
4 out of 7 
3 out of 2,043 
Years Active: 2002-2025
Title: Innovations of Jianhua Chen in the Field of Self-Limiting Heaters
Introduction
Jianhua Chen, based in Sunnyvale, California, is a prolific inventor with a remarkable portfolio of 39 patents. His work primarily focuses on enhancing thermal management technologies, particularly in the realm of self-limiting heaters and protective fuse devices.
Latest Patents
Among his latest contributions to the field are two notable patents. The first, titled "Self-limiting heater," discloses a novel heater design that comprises a resistor and a PTC (Positive Temperature Coefficient) resistor arranged in series with a power supply. This innovative configuration allows for effective thermal coupling, with the PTC resistor’s resistance increasing with temperature, thus enabling precise control over heating characteristics.
The second patent, "PPTC device having low melting temperature polymer body," describes a fuse device that includes a PPTC body. This fuse features a polymer matrix and a conductive filler, with a trip temperature threshold of less than 120° C, providing enhanced safety and reliability in various applications.
Career Highlights
Jianhua has significantly contributed to the fields he has worked in, particularly during his tenure at Littelfuse, Inc. and Littelfuse Electronics (Shanghai) Co., Ltd. His innovative designs have not only advanced heater technology but also reinforced safety measures in electronic devices.
Collaborations
Throughout his career, Jianhua has collaborated with talented professionals such as Chun-Kwan Tsang and Martyn A Matthiesen. These collaborations have fueled the development of new technologies and have played a vital role in the successful patent registrations that underscore his career.
Conclusion
Jianhua Chen's dedication to innovation in thermal management technologies is evident through his extensive patent portfolio. His inventions not only improve the efficiency and safety of heating devices but also pave the way for advancements in various electronic applications. As he continues to innovate, Jianhua Chen remains a significant figure in the realm of modern inventions.
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.