Inventor
BIRD JONATHAN
US10 patents
⚠️ This page may combine multiple inventors who share the name “BIRD JONATHAN”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
UNIV PORTLAND STATE
4 patentsUS11879516B2Jan 23, 2024
Variable stiffness magnetic spring
UNIV PORTLAND STATE2 citations71
US12372132B2Jul 29, 2025
Rotary and linear adjustable stiffness magnetic springs
UNIV PORTLAND STATE0 citations60
US11128209B2Sep 21, 2021
Magnetic gearbox with flux concentration halbach rotors
UNIV PORTLAND STATE1 citations60
US12040677B2Jul 16, 2024
Electromagnetic configurations and assembly methods for a Halbach rotor magnetic gear
UNIV PORTLAND STATE0 citations50
GM GLOBAL TECH OPERATIONS INC
2 patentsUS7843100B2Nov 30, 2010
Methods and apparatus for preventing demagnetization in interior permanent magnet machines
GM GLOBAL TECH OPERATIONS INC23 citations89
US7902711B2Mar 8, 2011
Methods and apparatus for a permanent magnet machine with segmented ferrite magnets
GM GLOBAL TECH OPERATIONS INC14 citations82