RE

Robert Erhardt

Philips: 1 patents #303 of 1,284Top 25%
PA Philips Electronics North America: 1 patents #14 of 111Top 15%
📍 Chicago, IL: #73 of 655 inventorsTop 15%
🗺 Illinois: #618 of 5,836 inventorsTop 15%
Overall (2002): #44,586 of 266,432Top 20%
2
Patents 2002

Issued Patents 2002

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
6489729 Auxiliary lighting system for high intensity discharge lamp Ching-Yao Hung, Raymond Kulka, Seymour Perkins, III, Oscar Deurloo 2002-12-03
6373199 Reducing stress on ignitor circuitry for gaseous discharge lamps Oscar Deurloo 2002-04-16