Michael E. Spencer — 6 Patents at American Technology

Michael E. Spencer has been granted 6 US patents while listed as an inventor at American Technology. The first was granted in 2003 and the most recent in June 2010. Michael E. Spencer ranks #779,687 of 4,157,543 US inventors in our database (top 18.8%). Patent records list Michael E. Spencer in Redondo Beach, CA, US.

Patents per Year

Issued Patents All Time

Showing 1–6 of 6 patents

Patent #	Title	Co-Inventors	Date	Approx Value ⓘ
7729498	Modulator processing for a parametric speaker system	James J. Croft, III, Joseph O. Norris	2010-06-01	$724,000
7224219	Modulator-amplifier	—	2007-05-29	$1,000,000
7224808	Dynamic carrier system for parametric arrays	James J. Croft, III	2007-05-29	$1,000,000
7162042	Modulator processing for a parametric speaker system	James J. Croft, III, Joseph O. Norris	2007-01-09	$2,057,000
7109789	Modulator—amplifier	—	2006-09-19	$1,869,000
6584205	Modulator processing for a parametric speaker system	James J. Croft, III, Joseph O. Norris	2003-06-24	$1,848,000