List of Master key patents

Patents where

Current Assignee

Name

‌

Master key

Name	Description	Current Assignee	Patent Jurisdiction	Patent Number	Date of Patent
‌ US Patent 7589269 Device and method for visualizing musical rhythmic structures	Patent 7589269 was granted and assigned to Master key on September, 2009 by the United States Patent and Trademark Office.	‌ Master key	United States Patent and Trademark Office	7589269	September 15, 2009
‌ US Patent 7960637 Archiving of environmental sounds using visualization components	Patent 7960637 was granted and assigned to Master key on June, 2011 by the United States Patent and Trademark Office.	‌ Master key	United States Patent and Trademark Office	7960637	June 14, 2011
‌ US Patent 7919702 Apparatus and method of displaying infinitely small divisions of measurement	Patent 7919702 was granted and assigned to Master key on April, 2011 by the United States Patent and Trademark Office.	‌ Master key	United States Patent and Trademark Office	7919702	April 5, 2011
‌ US Patent 7781662 Apparatus and method for visualizing music and other sounds	Patent 7781662 was granted and assigned to Master key on August, 2010 by the United States Patent and Trademark Office.	‌ Master key	United States Patent and Trademark Office	7781662	August 24, 2010
‌ US Patent 7772476 Device and method for visualizing musical rhythmic structures	Patent 7772476 was granted and assigned to Master key on August, 2010 by the United States Patent and Trademark Office.	‌ Master key	United States Patent and Trademark Office	7772476	August 10, 2010
‌ US Patent 7928306 Musical instrument tuning method and apparatus	Patent 7928306 was granted and assigned to Master key on April, 2011 by the United States Patent and Trademark Office.	‌ Master key	United States Patent and Trademark Office	7928306	April 19, 2011
‌ US Patent 7671266 System and method for speech therapy	Patent 7671266 was granted and assigned to Master key on March, 2010 by the United States Patent and Trademark Office.	‌ Master key	United States Patent and Trademark Office	7671266	March 2, 2010
‌ US Patent 7932454 System and method for musical instruction	Patent 7932454 was granted and assigned to Master key on April, 2011 by the United States Patent and Trademark Office.	‌ Master key	United States Patent and Trademark Office	7932454	April 26, 2011
‌ US Patent 7538265 Apparatus and method for visualizing music and other sounds	Patent 7538265 was granted and assigned to Master key on May, 2009 by the United States Patent and Trademark Office.	‌ Master key	United States Patent and Trademark Office	7538265	May 26, 2009
‌ US Patent 8843377 System and method for foreign language processing	Patent 8843377 was granted and assigned to Master key on September, 2014 by the United States Patent and Trademark Office.	‌ Master key	United States Patent and Trademark Office	8843377	September 23, 2014
‌ US Patent 7932455 Method and apparatus for comparing musical works	Patent 7932455 was granted and assigned to Master key on April, 2011 by the United States Patent and Trademark Office.	‌ Master key	United States Patent and Trademark Office	7932455	April 26, 2011
‌ US Patent 7820900 System and method for sound recognition	Patent 7820900 was granted and assigned to Master key on October, 2010 by the United States Patent and Trademark Office.	‌ Master key	United States Patent and Trademark Office	7820900	October 26, 2010
‌ US Patent 7947888 Method and apparatus for computer-generated music	Patent 7947888 was granted and assigned to Master key on May, 2011 by the United States Patent and Trademark Office.	‌ Master key	United States Patent and Trademark Office	7947888	May 24, 2011
‌ US Patent 8073701 Method and apparatus for identity verification using visual representation of a spoken word	Patent 8073701 was granted and assigned to Master key on December, 2011 by the United States Patent and Trademark Office.	‌ Master key	United States Patent and Trademark Office	8073701	December 6, 2011
‌ US Patent 7880076 Child development and education apparatus and method using visual stimulation	Patent 7880076 was granted and assigned to Master key on February, 2011 by the United States Patent and Trademark Office.	‌ Master key	United States Patent and Trademark Office	7880076	February 1, 2011
‌ US Patent 7935877 System and method for music composition	Patent 7935877 was granted and assigned to Master key on May, 2011 by the United States Patent and Trademark Office.	‌ Master key	United States Patent and Trademark Office	7935877	May 3, 2011
‌ US Patent 7956273 Apparatus and method for visualizing music and other sounds	Patent 7956273 was granted and assigned to Master key on June, 2011 by the United States Patent and Trademark Office.	‌ Master key	United States Patent and Trademark Office	7956273	June 7, 2011
‌ US Patent 7875787 Apparatus and method for visualization of music using note extraction	Patent 7875787 was granted and assigned to Master key on January, 2011 by the United States Patent and Trademark Office.	‌ Master key	United States Patent and Trademark Office	7875787	January 25, 2011
‌ US Patent 8018459 Calibration of transmission system using tonal visualization components	Patent 8018459 was granted and assigned to Master key on September, 2011 by the United States Patent and Trademark Office.	‌ Master key	United States Patent and Trademark Office	8018459	September 13, 2011
‌ US Patent 8127231 System and method for audio equalization	Patent 8127231 was granted and assigned to Master key on February, 2012 by the United States Patent and Trademark Office.	‌ Master key	United States Patent and Trademark Office	8127231	February 28, 2012
‌ US Patent 7994409 Method and apparatus for editing and mixing sound recordings	Patent 7994409 was granted and assigned to Master key on August, 2011 by the United States Patent and Trademark Office.	‌ Master key	United States Patent and Trademark Office	7994409	August 9, 2011

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