This inventor holds 5 USPTO granted patents. Top assignees: Sundstrand Data Control, Inc., Alliedsignal Inc., Sundstrand Corporation. Active years: 1983-1995.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Company Filing History:

Years Active: 1983-1995
Title: Innovations by Johannes B Groenewegen
Introduction
Johannes B Groenewegen is an accomplished inventor based in Kirkland, WA (US). He has made significant contributions to the field of electronic device protection, particularly in aviation. With a total of 5 patents to his name, Groenewegen's work focuses on innovative methods to safeguard sensitive electronic components from extreme conditions.
Latest Patents
One of his latest patents is a method of encapsulating temperature-sensitive devices in a wax-like material. This method is designed to protect solid-state memory devices used in aircraft for recording flight data from intense heat resulting from fire. The process involves preparing a wax 'preform' under heat and pressure in a closed chamber to minimize oxidation. The preform is then transferred into a mold cavity that supports the memory devices, effectively encapsulating a printed circuit board to exclude air and protect it from the damaging effects of high temperatures.
Another notable patent is for a crash protection enclosure for solid-state memory devices. This innovative design includes a conformal coating of air-excluding plastic material around the memory element. The enclosure features an inner shell made of a metal with a low position on the periodic table, which serves to protect the memory element. Additionally, heat-insulating fillers surround the inner metal shell, which acts as a sacrificial anode when exposed to salt water. An outer metal shell made of high-strength material provides resistance against physical forces during a crash.
Career Highlights
Throughout his career, Groenewegen has worked with notable companies such as Sundstrand Data Control, Inc. and Sundstrand Corporation. His experience in these organizations has allowed him to develop and refine his innovative ideas, contributing to advancements in electronic device safety.
Collaborations
Some of his coworkers include Ismael Cruz and Richard A Olzak. Their collaboration has likely played a role in the development of Groenewegen's innovative patents.
Conclusion
Johannes B Groenewegen's contributions to the field of electronic device protection are noteworthy. His innovative patents demonstrate a commitment to enhancing safety in aviation technology. His work continues to influence the industry and protect critical electronic components from extreme conditions.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile