RR

Robert Ray

📍 Joliet, IL: #4 of 17 inventorsTop 25%
🗺 Illinois: #1,118 of 4,656 inventorsTop 25%
Overall (1997): #83,944 of 185,788Top 50%
1
Patents 1997

Issued Patents 1997

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
5701750 Zone demand controlled dual heat pump system and controller therefor — 1997-12-30