Inventor
Ivon F. Helwegen
Inventor
St. Odilienberg, NL
Overview
Patents· 6 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
G02Bprimary
G02BOptical elements, systems or apparatus38%
G01NInvestigating or analysing materials by determining their chemical or physical properties25%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests25%
G01PMeasuring linear or angular speed, acceleration, deceleration, or shock13%
PatentTitleYear
8,234,907'Photo acoustic detector with improved signal processing'20128,051,713'Two-dimensional adaptive accelerometer based on dielectrophoresis'20118,040,516'Oscillator element for photo acoustic detector'20117,612,948'Controllable optical lens'20097,612,947'Controllable optical lens'20097,408,717'Liquid-based optical device, method for controlling such a device and electronic device'2008Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2008–2011Patents assigned to KONINKL PHILIPS ELECTRONICS NV (5)· patent assignee history
2008–2009Based in St. Odilienberg, NL· patent location history
2011–2012Based in Herten, NL· patent location history
2011Based in Eindhoven, NL· patent location history
2012Patents assigned to HELWEGEN IVON FRANCISCUS (1)· patent assignee history
2012Patents assigned to KONINK PHILIPS ELETRONICS N V (1)· patent assignee history
2012Patents assigned to VAN KESTEREN HANS WILLEM (1)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| KONINKL PHILIPS ELECTRONICS NV | 5 | 2008–2011 |
| HELWEGEN IVON FRANCISCUSself | 1 | 2012 |
| KONINK PHILIPS ELETRONICS N V | 1 | 2012 |
| VAN KESTEREN HANS WILLEM | 1 | 2012 |
Locations
| Location | Patents | Span |
|---|---|---|
| St. Odilienberg, NL | 3 | 2008–2009 |
| Herten, NL | 2 | 2011–2012 |
| Eindhoven, NL | 1 | 2011 |