TL

Thomas F. Longwell

KE Knowles Electronics: 2 patents #131 of 325Top 45%
📍 Lincolnshire, IL: #68 of 155 inventorsTop 45%
🗺 Illinois: #34,584 of 84,256 inventorsTop 45%
Overall (All Time): #2,212,947 of 4,157,543Top 55%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
6377678 Telephone handset emulator — 2002-04-23
5222050 Water-resistant transducer housing with hydrophobic vent Thomas F. Marren 1993-06-22