This inventor holds 1 USPTO granted patent and 2 published patent applications. Top assignee: Carl Freudenberg Kg. Active years: 2026.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Company Filing History:
Years Active: 2026
Title: Michael SÖNDGEN: Inventor of a Pressure-Equalizing Device
Introduction
Michael SÖNDGEN is an inventor associated with Bensheim, Germany, and Carl Freudenberg KG. His listed patent concerns a pressure-equalizing device designed to regulate gas flow while helping protect a housing from pressure differences.
Latest Patents
SÖNDGEN is credited with 1 patent: “Pressure-equalizing device and housing having same.” The invention features a lattice-like cage with a gas passage that connects the inside and outside of a device. A gas-permeable membrane covers the passage opening, while a pressure-relief valve operates in parallel with the membrane. Together, these components separate the interior from the exterior while allowing pressure equalization. In an emergency, a sealing lip can lift from the cage’s sealing surface, opening a flow path for degassing.
Career Highlights
The listed patent reflects work on pressure management and emergency venting in a housing. SÖNDGEN’s professional association with Carl Freudenberg KG connects his inventive work to the company’s engineering activities.
Collaborations
Christian Kleinke and Christopher SchÄfer are identified as SÖNDGEN’s coworkers. The available information does not specify their roles in the patent or whether they collaborated directly on the invention.
Conclusion
Michael SÖNDGEN’s listed invention combines a gas-permeable membrane with a pressure-relief valve and an emergency-opening seal to support pressure equalization and controlled degassing.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile