The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 04, 2009
Filed:
May. 06, 2004
Per Kokholm Sørensen, Smørum, DK;
Frank Engel Rasmussen, Smørum, DK;
Karsten BO Rasmussen, Smørum, DK;
Per Kokholm Sørensen, Smørum, DK;
Frank Engel Rasmussen, Smørum, DK;
Karsten Bo Rasmussen, Smørum, DK;
Oticon A/S, Smørum, DK;
Abstract
The invention concerns a microphone with a membrane. The membrane has a first side which is in fluid contact with the surroundings and a second side which is facing a back chamber, where a barometric relief opening or vent opening is provided between the back chamber and the surroundings. According to the invention control means are provided for controlling the barometric relief opening.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile