Inventor
BADGER DAVID A
US35 patents
⚠️ This page may combine multiple inventors who share the name “BADGER DAVID A”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
CLEAN ENERGY LABS LLC
24 patentsUSD883952SMay 12, 2020
Audio speaker
CLEAN ENERGY LABS LLC47 citations94
US9826313B2Nov 21, 2017
Compact electroacoustic transducer and loudspeaker system and method of use thereof
CLEAN ENERGY LABS LLC19 citations92
US12003943B2Jun 4, 2024
Electroacoustic drivers and loudspeakers containing same
CLEAN ENERGY LABS LLC4 citations85
US9924275B2Mar 20, 2018
Loudspeaker having electrically conductive membrane transducers
CLEAN ENERGY LABS LLC9 citations84
US9515580B2Dec 6, 2016
Membrane-based nano-electromechanical systems device and methods to make and use same
CLEAN ENERGY LABS LLC8 citations84
US9143868B2Sep 22, 2015
Electrically conductive membrane pump/transducer and methods to make and use same
CLEAN ENERGY LABS LLC11 citations84
US11595751B2Feb 28, 2023
Loudspeaker with array of electrostatic card stack drivers
CLEAN ENERGY LABS LLC2 citations73
US11575991B2Feb 7, 2023
Stereophonic loudspeaker system and method of use thereof
CLEAN ENERGY LABS LLC2 citations73
US12284507B2Apr 22, 2025
Force transducers for electroacoustic drivers and loudspeakers containing same
CLEAN ENERGY LABS LLC0 citations62
US12256207B2Mar 18, 2025
Electroacoustic drivers and loudspeakers containing same
CLEAN ENERGY LABS LLC0 citations62
US12126979B2Oct 22, 2024
Electroacoustic drivers and loudspeakers containing same
CLEAN ENERGY LABS LLC0 citations62
US12003942B2Jun 4, 2024
Electroacoustic drivers and loudspeakers containing same
CLEAN ENERGY LABS LLC0 citations62
US12003940B2Jun 4, 2024
Electroacoustic drivers and loudspeakers containing same
CLEAN ENERGY LABS LLC0 citations62
US12003941B2Jun 4, 2024
Electroacoustic drivers and loudspeakers containing same
CLEAN ENERGY LABS LLC0 citations62
US11134336B2Sep 28, 2021
Cover-baffle-stand system for loudspeaker system and method of use thereof
CLEAN ENERGY LABS LLC1 citations62
US12598429B2Apr 7, 2026
Loudspeakers and methods of use thereof
CLEAN ENERGY LABS LLC0 citations52
US12335684B2Jun 17, 2025
Loudspeakers and methods of use thereof
CLEAN ENERGY LABS LLC0 citations52
US12273694B2Apr 8, 2025
Voice coil actuator and loudspeakers containing same
CLEAN ENERGY LABS LLC0 citations52
US10791401B2Sep 29, 2020
Compact electroacoustic transducer and loudspeaker system and method of use thereof
CLEAN ENERGY LABS LLC0 citations52
US10694009B2Jun 23, 2020
Communication system having an array of pumps and method of use thereof
CLEAN ENERGY LABS LLC0 citations52
US9831804B2Nov 28, 2017
Membrane-based NANO-electromechanical systems device and methods to make and use same
CLEAN ENERGY LABS LLC0 citations52
US9831803B2Nov 28, 2017
Membrane-based nano-electromechanical systems device and methods to make and use same
CLEAN ENERGY LABS LLC0 citations52
US9313580B2Apr 12, 2016
Audio speaking having an electrostatic membrane pump and methods to use same
CLEAN ENERGY LABS LLC1 citations52
US11425506B2Aug 23, 2022
Compact electroacoustic transducer and loudspeaker system and method of use thereof
CLEAN ENERGY LABS LLC0 citations48
ACTIVE POWER INC
5 patentsUS6844706B2Jan 18, 2005
Multiple path variable speed constant frequency device having automatic power path selection capability
ACTIVE POWER INC75 citations95
US6657320B1Dec 2, 2003
Integrated flywheel uninterruptible power supply system
ACTIVE POWER INC67 citations93
US7400052B1Jul 15, 2008
Transient energy systems and methods for use of the same
ACTIVE POWER INC43 citations92
US7030593B2Apr 18, 2006
Multiple path variable speed constant frequency device having automatic power path selection capability
ACTIVE POWER INC21 citations90
US7425807B1Sep 16, 2008
Transient energy systems and methods for use of the same
ACTIVE POWER INC20 citations89