List of Wolfson Microelectronics patents

Patents where

Current Assignee

Name

Wolfson Microelectronics

Name	Description	Current Assignee	Patent Jurisdiction	Patent Number	Date of Patent
‌ US Patent 7348840 Feedback controller for PWM amplifier	Patent 7348840 was granted and assigned to Wolfson Microelectronics on March, 2008 by the United States Patent and Trademark Office.	Wolfson Microelectronics	United States Patent and Trademark Office	7348840	March 25, 2008
‌ US Patent 7781249 MEMS process and device	Patent 7781249 was granted and assigned to Wolfson Microelectronics on August, 2010 by the United States Patent and Trademark Office.	Wolfson Microelectronics	United States Patent and Trademark Office	7781249	August 24, 2010
‌ US Patent 7605574 Switching regulator circuits	Patent 7605574 was granted and assigned to Wolfson Microelectronics on October, 2009 by the United States Patent and Trademark Office.	Wolfson Microelectronics	United States Patent and Trademark Office	7605574	October 20, 2009
‌ US Patent 7856804 MEMS process and device	Patent 7856804 was granted and assigned to Wolfson Microelectronics on December, 2010 by the United States Patent and Trademark Office.	Wolfson Microelectronics	United States Patent and Trademark Office	7856804	December 28, 2010
‌ US Patent 7257164 Class D amplifier	Patent 7257164 was granted and assigned to Wolfson Microelectronics on August, 2007 by the United States Patent and Trademark Office.	Wolfson Microelectronics	United States Patent and Trademark Office	7257164	August 14, 2007
‌ US Patent 7102557 Switched capacitor DAC	Patent 7102557 was granted and assigned to Wolfson Microelectronics on September, 2006 by the United States Patent and Trademark Office.	Wolfson Microelectronics	United States Patent and Trademark Office	7102557	September 5, 2006
‌ US Patent 7301347 Current sensing circuit	Patent 7301347 was granted and assigned to Wolfson Microelectronics on November, 2007 by the United States Patent and Trademark Office.	Wolfson Microelectronics	United States Patent and Trademark Office	7301347	November 27, 2007
‌ US Patent 7884558 Driver apparatus and method	Patent 7884558 was granted and assigned to Wolfson Microelectronics on February, 2011 by the United States Patent and Trademark Office.	Wolfson Microelectronics	United States Patent and Trademark Office	7884558	February 8, 2011
‌ US Patent 7508331 Digital-to-analog converter with dynamic element matching to minimize mismatch error	Patent 7508331 was granted and assigned to Wolfson Microelectronics on March, 2009 by the United States Patent and Trademark Office.	Wolfson Microelectronics	United States Patent and Trademark Office	7508331	March 24, 2009
‌ US Patent 7714660 Amplifier circuit and methods of operation thereof	Patent 7714660 was granted and assigned to Wolfson Microelectronics on May, 2010 by the United States Patent and Trademark Office.	Wolfson Microelectronics	United States Patent and Trademark Office	7714660	May 11, 2010
‌ US Patent 8159200 DC-DC converter circuits, and methods and apparatus including such circuits	Patent 8159200 was granted and assigned to Wolfson Microelectronics on April, 2012 by the United States Patent and Trademark Office.	Wolfson Microelectronics	United States Patent and Trademark Office	8159200	April 17, 2012
‌ US Patent 8645444 IIR filter for reducing the complexity of multiplying elements	Patent 8645444 was granted and assigned to Wolfson Microelectronics on February, 2014 by the United States Patent and Trademark Office.	Wolfson Microelectronics	United States Patent and Trademark Office	8645444	February 4, 2014
‌ US Patent 7402986 Power supply circuit for portable battery powered device	Patent 7402986 was granted and assigned to Wolfson Microelectronics on July, 2008 by the United States Patent and Trademark Office.	Wolfson Microelectronics	United States Patent and Trademark Office	7402986	July 22, 2008
‌ US Patent 7567195 Digital-to-analog converter using selected single bit converter elements	Patent 7567195 was granted and assigned to Wolfson Microelectronics on July, 2009 by the United States Patent and Trademark Office.	Wolfson Microelectronics	United States Patent and Trademark Office	7567195	July 28, 2009
‌ US Patent 7205917 Pulse width modulator quantisation circuit	Patent 7205917 was granted and assigned to Wolfson Microelectronics on April, 2007 by the United States Patent and Trademark Office.	Wolfson Microelectronics	United States Patent and Trademark Office	7205917	April 17, 2007
‌ US Patent 8472636 Ambient noise reduction arrangements	Patent 8472636 was granted and assigned to Wolfson Microelectronics on June, 2013 by the United States Patent and Trademark Office.	Wolfson Microelectronics	United States Patent and Trademark Office	8472636	June 25, 2013
‌ US Patent 7295053 Delay-locked loop circuits	Patent 7295053 was granted and assigned to Wolfson Microelectronics on November, 2007 by the United States Patent and Trademark Office.	Wolfson Microelectronics	United States Patent and Trademark Office	7295053	November 13, 2007
‌ US Patent 7466831 Audio processing	Patent 7466831 was granted and assigned to Wolfson Microelectronics on December, 2008 by the United States Patent and Trademark Office.	Wolfson Microelectronics	United States Patent and Trademark Office	7466831	December 16, 2008
‌ US Patent 7113042 Low noise op amp	Patent 7113042 was granted and assigned to Wolfson Microelectronics on September, 2006 by the United States Patent and Trademark Office.	Wolfson Microelectronics	United States Patent and Trademark Office	7113042	September 26, 2006
‌ US Patent 7626445 Charge pump circuit and methods of operation thereof	Patent 7626445 was granted and assigned to Wolfson Microelectronics on December, 2009 by the United States Patent and Trademark Office.	Wolfson Microelectronics	United States Patent and Trademark Office	7626445	December 1, 2009
‌ US Patent 7301401 Low noise op amp	Patent 7301401 was granted and assigned to Wolfson Microelectronics on November, 2007 by the United States Patent and Trademark Office.	Wolfson Microelectronics	United States Patent and Trademark Office	7301401	November 27, 2007
‌ US Patent 7106240 Analogue to digital converter	Patent 7106240 was granted and assigned to Wolfson Microelectronics on September, 2006 by the United States Patent and Trademark Office.	Wolfson Microelectronics	United States Patent and Trademark Office	7106240	September 12, 2006
‌ US Patent 8643129 MEMS device	Patent 8643129 was granted and assigned to Wolfson Microelectronics on February, 2014 by the United States Patent and Trademark Office.	Wolfson Microelectronics	United States Patent and Trademark Office	8643129	February 4, 2014
‌ US Patent 7622984 Charge pump circuit and methods of operation thereof	Patent 7622984 was granted and assigned to Wolfson Microelectronics on November, 2009 by the United States Patent and Trademark Office.	Wolfson Microelectronics	United States Patent and Trademark Office	7622984	November 24, 2009
‌ US Patent 7990742 Charge pump circuit and methods of operation thereof	Patent 7990742 was granted and assigned to Wolfson Microelectronics on August, 2011 by the United States Patent and Trademark Office.	Wolfson Microelectronics	United States Patent and Trademark Office	7990742	August 2, 2011

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