David H. Griesinger

HI Harman International Industries, Incorporated: 2 patents #3 of 29Top 15%

📍 Cambridge, MA: #66 of 439 inventorsTop 20%

🗺 Massachusetts: #740 of 6,583 inventorsTop 15%

Overall (2004): #68,660 of 270,089Top 30%

Patents 2004

Issued Patents 2004

Showing 1–2 of 2 patents

Patent #	Title	Co-Inventors	Date
6697491	5-2-5 matrix encoder and decoder system	—	2004-02-24
6683962	Method and system for driving speakers with a 90 degree phase shift	—	2004-01-27