Company Filing History:
3 out of 1,770 
3 out of 605 
1 out of 1,452 
Years Active: 1979-2001
Title: The Innovations of John L. Plumb
Introduction
John L. Plumb is a notable inventor based in Danvers, MA (US), recognized for his contributions to the field of lighting technology. He holds a total of six patents, showcasing his innovative spirit and commitment to developing environmentally friendly solutions.
Latest Patents
One of his latest patents is the "Mercury and Lead Free High Pressure Sodium Lamp." This invention features a long-life, environmentally disposable high-pressure sodium lamp that includes an arc tube capable of withstanding internal wall temperatures of 1250 to 1300°C. The lamp is designed for operation at a specific wattage and contains a discharge space with a mercury-free medium that includes sodium and xenon. Another significant patent is the "Vapor Discharge Device with Electron Emissive Material." This device utilizes an emissive material for vapor discharge applications, enhancing the efficiency of the arc tube with electrodes coated in a specially reacted material.
Career Highlights
Throughout his career, John L. Plumb has worked with prominent companies such as GTE Products Corporation and GTE Sylvania Incorporated. His work in these organizations has contributed to advancements in lighting technology and vapor discharge devices.
Collaborations
John has collaborated with notable individuals in his field, including Elliot F. Wyner and David Alan Goodman. These partnerships have likely fostered innovation and the exchange of ideas in their respective projects.
Conclusion
John L. Plumb's contributions to the field of lighting technology through his patents reflect his dedication to innovation and environmental sustainability. His work continues to influence the industry and inspire future advancements.
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.