Location History:
- Chester, MT (US) (1980)
- So. Hamilton, MA (US) (1985)
- South Hamilton, MA (US) (1978 - 1989)
- Hamilton, MA (US) (1987 - 1995)
Company Filing History:
6 out of 1,770 
2 out of 605 
1 out of 1,452 
Years Active: 1978-1995
Title: The Innovative Contributions of Robert M. Griffin
Introduction
Robert M. Griffin is a notable inventor based in Hamilton, MA (US), recognized for his significant contributions to the field of lighting technology. With a total of 10 patents to his name, Griffin has made remarkable advancements in the design and functionality of incandescent lamps.
Latest Patents
Among his latest patents is the "Incandescent lamp having hardglass envelope with internal barrier layer." This invention features an envelope made of hardglass that encloses a tungsten filament. The envelope contains a fill material that includes an inert fill gas and a halogen additive. A coating of silicon dioxide is applied to a substantial portion of the internal surface of the envelope, preventing the halogen additive from reacting with alkaline ions of the hardglass envelope. Another significant patent is the "Filament support for tubular lamp capsule." This invention includes filament supports designed to accurately center a filament within a double-ended lamp envelope. The supports contact the inner surface of the lamp envelope at multiple discrete regions, ensuring precise filament positioning, particularly in tubular incandescent lamp capsules with infrared reflective coatings.
Career Highlights
Throughout his career, Robert M. Griffin has worked with prominent companies such as GTE Products Corporation and GTE Sylvania Incorporated. His work in these organizations has contributed to the development of innovative lighting solutions that have impacted the industry.
Collaborations
Griffin has collaborated with notable individuals in his field, including Peter R. Gagnon and Roy C. Martin. These collaborations have fostered a creative environment that has led to the development of groundbreaking technologies.
Conclusion
Robert M. Griffin's contributions to the field of lighting technology through his patents and collaborations highlight his role as a significant inventor. His innovative designs continue to influence the industry and improve the functionality of incandescent lamps.