This inventor holds 7 USPTO granted patents. Top assignees: Gte Laboratories Incorporated, Osram Sylvania Inc., Valenite, Inc.. Active years: 1981-1998.
Company Filing History:
3 out of 937 
2 out of 1,452 
2 out of 90 Years Active: 1981-1998
Title: John Walsh: Innovator in Electrodeless Lamp Technology
Introduction
John Walsh is a notable inventor based in Milford, MA (US), recognized for his contributions to the field of electrodeless lamp technology. With a total of 7 patents to his name, Walsh has made significant advancements that have impacted the lighting industry.
Latest Patents
One of Walsh's latest patents is for an arc tube designed for electrodeless metal halide discharge lamps. This innovative arc tube features an arc chamber made from materials such as magnesia-doped polycrystalline alumina, silicon dioxide doped polycrystalline alumina, and monocrystalline alumina. The tubular arc chamber includes at least one end, which is closed off by an end cap formed from magnesia-doped polycrystalline alumina. This end cap is a cup-shaped member that is sealed to the arc chamber's outside diameter through a shrink-fit process. This design enhances the efficiency and performance of electrodeless lamps.
Career Highlights
Throughout his career, John Walsh has worked with prominent companies, including GTE Laboratories Incorporated and Osram Sylvania Inc. His experience in these organizations has allowed him to develop and refine his innovative ideas in lighting technology.
Collaborations
Walsh has collaborated with notable individuals in the field, including George C. Wei and Romano G. Pappalardo. These partnerships have contributed to the successful development of his patented technologies.
Conclusion
John Walsh's work in the electrodeless lamp sector showcases his innovative spirit and dedication to advancing lighting technology. His patents reflect a commitment to improving efficiency and performance in the industry.