Brian E. Attwood — 8 Patents at D2Audio

Brian E. Attwood has been granted 8 US patents while listed as an inventor at D2Audio. The first was granted in 1980 and the most recent in October 2010. Brian E. Attwood ranks #600,572 of 4,157,543 US inventors in our database (top 14.4%). Patent records list Brian E. Attwood in Horsham, CA, GB.

Issued Patents All Time

Showing 1–8 of 8 patents

Patent #	Title	Co-Inventors	Date	Approx Value ⓘ
7816985	Switching amplifiers	Wilson E. Taylor, Larry E. Hand	2010-10-19	$9,628,000
7078963	Integrated PULSHI mode with shutdown	Jack B. Andersen	2006-07-18
6249156	Electric circuit	—	2001-06-19
5629841	Low power dc-dc converter	—	1997-05-13
5394319	Non-coupled integrated magnetic structure	Michael Finazzo	1995-02-28
4992751	Audio amplifier with phase modulated pulse width modulation	Larry E. Hand, Lee Carlos Santillano	1991-02-12
4692851	Harmonic-resonant power supply	—	1987-09-08
4182992	Pulse width modulated signal amplifier	—	1980-01-08

Brian E. Attwood — 8 Patents

Issued Patents All Time

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