DE

David Etheridge

📍 Glendale, CA: #1 of 34 inventorsTop 3%
🗺 California: #676 of 10,592 inventorsTop 7%
Overall (1989): #29,619 of 140,708Top 25%
2
Patents 1989

Issued Patents 1989

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
4875957 Method of connecting a non-contaminating fluid heating element to a power source — 1989-10-24
4835365 De-ionized fluid heater and control system — 1989-05-30