David Johnson — 7 Patents at Cobe Laboratories

David Johnson has been granted 7 US patents while listed as an inventor at Cobe Laboratories. The first was granted in 1995 and the most recent in December 2025. David Johnson ranks #680,018 of 4,157,543 US inventors in our database (top 16.4%). Patent records list David Johnson in Littleton, CO, US.

Issued Patents All Time

Showing 1–7 of 7 patents

Patent #	Title	Co-Inventors	Date
12492715	Debris blower with sound attenuation resonator	Benjamin L. Waldera, Samuel M. Mahaffey	2025-12-09
12434225	Catalyst and a process for the production of ethylenically unsaturated carboxylic acids or esters	Jonathan Runnacles, Toshio Hasegawa, Kazufumi Nishida, Wataru Ninomiya	2025-10-07
7620193	Acoustic actuators	William John Metheringham, Brian Douglas Smith, Neil Munns, Martin Geoffrey Aston	2009-11-17
7300197	Apparatus for dissolving a solid material in a liquid	Brent McCurdy, Mario DeBerardinis	2007-11-27
7103190	Acoustic device	William John Metheringham	2006-09-05
6891286	Magnetostrictive actuator	Graham Flanagan, William John Metheringham, Brian Douglas Smith	2005-05-10
5394732	Method and apparatus for ultrasonic detection of air bubbles	Douglas P. Miller, Keith Manica, William M. Dormont, Christopher John Welsh, William R. Mandel	1995-03-07

David Johnson — 7 Patents

Issued Patents All Time

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