IH

Ivon Franciscus Helwegen

Philips: 6 patents #792 of 7,731Top 15%
📍 Roermond, NL: #20 of 149 inventorsTop 15%
Overall (All Time): #863,747 of 4,157,543Top 25%
6
Patents All Time

Issued Patents All Time

Showing 1–6 of 6 patents

Patent #TitleCo-InventorsDate
8234907 Photo acoustic detector with improved signal processing Hans Willem Van Kesteren 2012-08-07
8051713 Two-dimensional adaptive accelerometer based on dielectrophoresis Bart Michiel De Boer 2011-11-08
8040516 Oscillator element for photo acoustic detector Hans Willem Van Kesteren, Jeroen Kalkman 2011-10-18
7612947 Controllable optical lens Stein Kuiper, Bernardus Hendrikus Wilhelmus Hendriks 2009-11-03
7612948 Controllable optical lens Albert Hendrik Jan Immink, Bernardus Hendrikus Wilhelmus Hendriks, Stein Kuiper, Marco Van As 2009-11-03
7408717 Liquid-based optical device, method for controlling such a device and electronic device Christina Adriana Renders, Stein Kuiper, Bernardus Hendrikus Wilhelmus Hendriks, Marco Van As 2008-08-05