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:
Sep. 08, 2015
Filed:
Jan. 21, 2015
Applicant:
Doppler Labs, Inc., New York, NY (US);
Inventors:
Noah Kraft, Brooklyn, NY (US);
Richard Fritz Lanman, New York, NY (US);
Dan Wiggins, Montecito, CA (US);
Jonathan Oswaks, Thousand Oaks, CA (US);
Nils Jacob Palmborg, Brooklyn, NY (US);
Assignee:
Dopler Labs, Inc., New York, NY (US);
Primary Examiner:
Int. Cl.
CPC ...
H04R 3/04 (2006.01); A61F 11/08 (2006.01);
U.S. Cl.
CPC ...
H04R 3/04 (2013.01); A61F 2011/085 (2013.01);
Abstract
There is disclosed a passive acoustical filter including two or more filter elements coupled between an ambient and a listener's ear, each of the filter elements selected from the group consisting of a low pass filter element, a high pass filter element, a band reject filter element, and a band pass filter element.