Company Filing History:
3 out of 1,770 
3 out of 937 
1 out of 1 Years Active: 1981-1991
Title: Innovations of John F McKenna
Introduction
John F McKenna is a notable inventor based in Newburyport, MA (US). He holds a total of 6 patents that showcase his contributions to the field of technology, particularly in the area of thin film flat panel displays.
Latest Patents
One of his latest patents is focused on thin film flat panel displays and the method of manufacture. This invention involves a thin-film electroluminescent (TFEL) display panel that is shielded by a pair of glass substrates with a protective material in between. A metal washer is permanently bonded over the substrate oil fill orifices, interfacing with the cover glass. This metal washer is prepped in advance by pretinning with solder to facilitate reflow after the backfill process is complete. The use of solder as a sealing medium minimizes oil contamination and allows for quick sealing in a dry atmosphere without adhesives or flammable solvents. Another significant patent involves the use of perfluorinated inert liquids as protective fill fluids in TFEL flat panel displays. These fluids enhance the aging and life test characteristics of the panels, and novel filling methods are also described.
Career Highlights
Throughout his career, John F McKenna has worked with prominent companies such as GTE Products Corporation and GTE Laboratories Incorporated. His work has significantly impacted the development of display technologies.
Collaborations
He has collaborated with notable individuals in the field, including Frank C Palilla and Burton W MacAllister, Jr. Their combined expertise has contributed to advancements in display technology.
Conclusion
John F McKenna's innovative work in thin film flat panel displays has led to significant advancements in the industry. His patents reflect a commitment to improving technology and enhancing product performance.