QSC AUDIO PROD INC has a total of 20 patent applications. Its first patent ever was published in 1980. It filed its patents most often in United States, WIPO (World Intellectual Property Organization) and Australia. Its main competitors in its focus markets audio-visual technology, basic communication technologies and electrical machinery and energy are TYMPHANY HK LTD, DEVIALET and ALTEC LANSING CORP.
# | Country | Total Patents | |
---|---|---|---|
#1 | United States | 11 | |
#2 | WIPO (World Intellectual Property Organization) | 5 | |
#3 | Australia | 2 | |
#4 | China | 1 | |
#5 | EPO (European Patent Office) | 1 |
# | Technology | |
---|---|---|
#1 | Loudspeakers and microphones | |
#2 | Amplifiers | |
#3 | Amplification control | |
#4 | AC and DC conversion devices | |
#5 | Climate change mitigation in buildings |
# | Name | Total Patents |
---|---|---|
#1 | Engebretson Mark E | 5 |
#2 | Esparza Luis F | 5 |
#3 | Hawkins Bernie | 4 |
#4 | Quilter Patrick H | 4 |
#5 | Neunaber Brian | 3 |
#6 | Hales L Paul | 3 |
#7 | Ierymenko Paul | 2 |
#8 | Shimabukuro Yasushi | 1 |
#9 | Irwin Gordon L | 1 |
#10 | Ferrell Barron | 1 |
Publication | Filing date | Title |
---|---|---|
US2008169151A1 | Loudspeaker port handle | |
US2006186955A1 | Multi-channel, multi-power class D amplifier with regulated power supply | |
US2008085026A1 | Curved line array with horizontal coverage control | |
US2008085027A1 | Curved line array loudspeaker | |
US2008085028A1 | Spiral line array loudspeaker | |
US2006086562A1 | Speaker assembly with aiming device | |
US6940981B2 | Apparatus and method of limiting power applied to a loudspeaker | |
AU2003209140A1 | System and method for providing power factor correction | |
AU2002245676A1 | Speaker mounting system | |
US6023193A | High power bridge amplifier | |
US5767744A | Lightweight fixed frequency discontinuous resonant power supply for audio amplifiers | |
US4321554A | Time-delayed, variable output current limiting means for power amplifiers |