PL

Petrus A. Lemmens

U.S. Philips: 1 patents #4,133 of 8,851Top 50%
Overall (All Time): #3,894,537 of 4,157,543Top 95%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4895585 Method of manufacturing lens elements Johannes H. Angenent, Nicodemus Hattu, Petrus Heller, Cornelis J. T. Potters, Johan C. Wijn 1990-01-23