Inventor

MARSHALL CHRISTOPHER BRIAN

GB9 patents

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

KONINKL PHILIPS ELECTRONICS NV

2 patents

US7010267B2Mar 7, 2006

Arrangement with beacon for providing information service

KONINKL PHILIPS ELECTRONICS NV70 citations93

US7183925B2Feb 27, 2007

Interactive system using tags

KONINKL PHILIPS ELECTRONICS NV22 citations91

PHILIPS CORP

1 patent

US5502744AMar 26, 1996

Data coding system

PHILIPS CORP20 citations90

U-BLOX AG

1 patent

US9681408B2Jun 13, 2017

Determining clock-drift using signals of opportunity

U-BLOX AG3 citations70

MARSHALL CHRISTOPHER BRIAN

1 patent

US9035827B2May 19, 2015

Positioning using a local wave-propagation model

MARSHALL CHRISTOPHER BRIAN6 citations66

YULE ANDREW THOMAS

1 patent

US8779980B2Jul 15, 2014

Position validation

YULE ANDREW THOMAS3 citations58

GEOTATE BV

1 patent

US7679556B2Mar 16, 2010

Method of determining a GPS position fix and a GPS receiver for the same

GEOTATE BV1 citations47

UBLOX AG

1 patent

US11061104B2Jul 13, 2021

Method and apparatus for positioning with wireless signals

UBLOX AG0 citations38

U BLOX A G

1 patent

US10187815B2Jan 22, 2019

Calculating a ranging measurement in a cellular communications network

U BLOX A G0 citations29