Inventor

JOHNSTON ROBERT G

CA9 patents

⚠️ This page may combine multiple inventors who share the name “JOHNSTON ROBERT G”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

DEI HEADQUARTERS INC

2 patents

US8014545B2Sep 6, 2011

Ceiling or wall-mounted loudspeaker system with anti-diffraction wave launch device

DEI HEADQUARTERS INC20 citations82

US7684582B2Mar 23, 2010

Electrodynamic acoustic transducer

DEI HEADQUARTERS INC7 citations71

JOHNSTON ROBERT G

2 patents

US9071897B1Jun 30, 2015

Magnetic coupling for stereo loudspeaker systems

JOHNSTON ROBERT G7 citations81

US9462391B2Oct 4, 2016

Vertically and horizontally balanced subwoofer

JOHNSTON ROBERT G3 citations62

XEROX CORP

1 patent

US4209550AJun 24, 1980

Coating carrier materials by electrostatic process

XEROX CORP33 citations91

DEFINITIVE TECHNOLOGY INC

1 patent

US5887068AMar 23, 1999

Multi-driver in-phase bipolar array loudspeaker

DEFINITIVE TECHNOLOGY INC24 citations82

NEWBRIDGE NETWORKS CORP

1 patent

US4857884AAug 15, 1989

Paging system

NEWBRIDGE NETWORKS CORP8 citations72

GLADWIN TIMOTHY A

1 patent

US8243963B2Aug 14, 2012

Swivel tweeter mechanism for a constant phase coaxial acoustic transducer

GLADWIN TIMOTHY A6 citations65

FLENNIKEN CHARLES

1 patent

US5941258AAug 24, 1999

Long reach, cable-suspended cleaning apparatus for building disposal chutes and method

FLENNIKEN CHARLES8 citations60