Inventor
GRAJEWSKI CHRISTOPHER RAYMOND
US15 patents
⚠️ This page may combine multiple inventors who share the name “GRAJEWSKI CHRISTOPHER RAYMOND”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
AMAZON TECH INC
14 patentsUS10459103B1Oct 29, 2019
Magnetic entry portal identification system
AMAZON TECH INC135 citations98
US10198710B1Feb 5, 2019
System to determine a change in weight at a load cell
AMAZON TECH INC184 citations98
US10262294B1Apr 16, 2019
Location estimation using array of capacitive sensors
AMAZON TECH INC66 citations97
US10244363B1Mar 26, 2019
Entry portal identification system
AMAZON TECH INC119 citations97
US10007892B1Jun 26, 2018
Capacitive sensor system
AMAZON TECH INC40 citations92
US11068841B1Jul 20, 2021
RFID enabled and location aware pallet mover
AMAZON TECH INC15 citations85
US10969461B1Apr 6, 2021
Electromagnetic tracking of moveable device with orientation determination
AMAZON TECH INC9 citations85
US11650625B1May 16, 2023
Multi-sensor wearable device with audio processing
AMAZON TECH INC8 citations83
US11057751B1Jul 6, 2021
User identification system using directional antennas and cameras
AMAZON TECH INC7 citations83
US10460137B1Oct 29, 2019
Dynamic RFID tag singulation using state information masking
AMAZON TECH INC12 citations79
US12156716B1Dec 3, 2024
Radio frequency biosensor with integrated compensation
AMAZON TECH INC3 citations74
US11340373B1May 24, 2022
System to determine portable device presence at a portal
AMAZON TECH INC0 citations62
US11087274B1Aug 10, 2021
System to detect event at an inventory location
AMAZON TECH INC0 citations60
US12029557B1Jul 9, 2024
Radio frequency antenna for wearable device
AMAZON TECH INC1 citations59