David John Murphy

Follow

Person

Henley Beach, AU

People

Patents Grantslast 30 patents

Information Patent Grant
Acoustic horn arrangement
- Patent number 9,503,807
- Issue date Nov 22, 2016
- Krix Loudspeakers Pty Ltd.
- David John Murphy
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Method of designing a sound waveguide surface
- Patent number 8,494,815
- Issue date Jul 23, 2013
- Krix Loudspeakers Pty Ltd
- Anthony Charles Zander
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Constant directivity acoustic horn
- Patent number 7,044,265
- Issue date May 16, 2006
- Krix Loudspeakers Pty Ltd.
- David John Murphy
- G10 - MUSICAL INSTRUMENTS ACOUSTICS

Patents Applicationslast 30 patents

Information Patent Application
ACOUSTIC HORN ARRANGEMENT
- Publication number 20140185854
- Publication date Jul 3, 2014
- KRIX LOUDSPEAKERS PTY LTD
- David John Murphy
- G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information Patent Application
Method of designing a sound waveguide surface
- Publication number 20110153282
- Publication date Jun 23, 2011
- KRIX LOUDSPEAKERS PTY LTD
- Anthony Charles Zander
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
Method of designing a sound waveguide surface
- Publication number 20080059132
- Publication date Mar 6, 2008
- KRIX LOUDSPEAKERS PTY LTD
- Anthony Charles Zander
- G06 - COMPUTING CALCULATING COUNTING