FA

Frederik H. Alkema

NL North American Philips Lighting: 1 patents #13 of 41Top 35%
U.S. Philips: 1 patents #4,133 of 8,851Top 50%
Overall (All Time): #2,332,189 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
D302472 Compact fluorescent reflector lamp Wallace T. MacDonald, Robert E. Cassidy, Harish F. Gandhi, Antonius J. M. Van Hees 1989-07-25
4333127 Electronic flashgun Meerten Luursema 1982-06-01