DH

David C. Hale

Caterpillar: 4 patents #1,659 of 8,398Top 20%
📍 Wheaton, IL: #199 of 884 inventorsTop 25%
🗺 Illinois: #17,877 of 84,256 inventorsTop 25%
Overall (All Time): #1,036,730 of 4,157,543Top 25%
5
Patents All Time

Issued Patents All Time

Showing 1–5 of 5 patents

Patent #TitleCo-InventorsDate
6854269 Noise attenuation in a hydraulic circuit 2005-02-15
6497558 Hydraulic pressure transformer 2002-12-24
6460333 Hydraulic pressure transformer John C. Endsley, Frank J. Raab 2002-10-08
6092455 Hydraulic pressure transformer John C. Endsley, Frank J. Raab 2000-07-25
4420052 Patient weighing scale 1983-12-13