JM

John Lawrence McGrael

BO Bose: 2 patents #526 of 1,083Top 50%
📍 Cambridge, MA: #3,914 of 8,183 inventorsTop 50%
🗺 Massachusetts: #42,150 of 88,656 inventorsTop 50%
Overall (All Time): #1,872,204 of 4,157,543Top 50%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
10952005 Stereo paired speaker system with center extraction Benjamin Jackson Clark, David Lester Smith, Michael Stark, James Tracey, Nabin Sagar Sharma 2021-03-16
10405084 Loudspeaker with deflector at a port exit Donna Marie Sullivan, Christopher Glenn Donaldson 2019-09-03