RH

Rudolf L. A. van der Heijden

U.S. Philips: 1 patents #205 of 1,030Top 20%
Overall (1989): #59,930 of 140,708Top 45%
1
Patents 1989

Issued Patents 1989

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4868463 Method of operating a high-pressure discharge lamp Jan Willem Frederik Dorleijn, Jan W. Denneman 1989-09-19