SM

Steven L. Machacek

NT Noise Cancellation Technologies: 1 patents #9 of 23Top 40%
📍 Alexandria, VA: #11 of 60 inventorsTop 20%
🗺 Virginia: #300 of 1,409 inventorsTop 25%
Overall (1997): #74,948 of 185,788Top 45%
1
Patents 1997

Issued Patents 1997

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
5638456 Piezo speaker and installation method for laptop personal computer and other multimedia applications John K. Conley, William Kokonaski, Michael J. Parrella 1997-06-10