Location History:
- Waverly, NY (US) (1988)
- Amesbury, MA (US) (1990 - 2001)
Company Filing History:
Years Active: 1988-2001
Title: **David W Johnston: Innovator in Discharge Lamp Technology**
Introduction
David W Johnston, an accomplished inventor based in Amesbury, MA, has made significant contributions to the field of lighting technology. With a total of three patents to his name, Johnston's inventions focus primarily on enhancing the performance and efficiency of discharge lamps and fluorescent lighting solutions.
Latest Patents
Among his most notable patents is the design of **Ceramic Feedthroughs for Discharge Lamps**. This innovation features an arc discharge lamp body crafted from glass or ceramic materials, which houses a discharge space enabling efficient lamp operation. Importantly, the design includes an electrically conducting member made from a conductive ceramic material, engineered to have a thermal coefficient of expansion that aligns with the lamp body.
Another significant patent is for the **Lead-in Wire for Compact Fluorescent Lamps**. This invention addresses the technical challenges associated with lead-in wires connected to press seals in soda-lime glass. Johnston's innovation includes a core composed of nickel and iron, which is plated to ensure the longevity of the lamp seal, thus improving the lifespan of compact fluorescent lamps by maintaining seal integrity at higher temperatures.
Career Highlights
David W Johnston has had a fruitful career, contributing to renowned companies such as **GTE Products Corporation** and **OSRAM Sylvania Inc.**. He has utilized his expertise to push the boundaries of lighting technology and improve product reliability.
Collaborations
Throughout his career, Johnston collaborated with notable industry professionals including John W Shaffer and Peter V Caleshu. These partnerships have likely fostered innovation and led to breakthrough advancements in their respective projects.
Conclusion
David W Johnston stands out as a notable inventor whose work has advanced the field of lighting technology. His patents reflect a commitment to innovation, and his collaborations with experienced professionals have undoubtedly enriched his contributions to the industry. As lighting technology continues to evolve, the impact of inventors like Johnston will be felt for years to come.
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.