Inventor

TORNQVIST DAVID

SE4 patents

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

SenionLab AB

3 patents

US9020752B2Apr 28, 2015

Method and device for indoor positioning using magnetic field properties

SenionLab AB10 citations79

US9677888B2Jun 13, 2017

Determining sensor orientation in indoor navigation

SenionLab AB4 citations68

US10429185B2Oct 1, 2019

Indoor rotation sensor and directional sensor for determining the heading angle of portable device

SenionLab AB0 citations37

GUSTAFSSON FREDRIK

1 patent

US8934884B2Jan 13, 2015

Method and device for indoor position resolution

GUSTAFSSON FREDRIK18 citations79