Inventor

Wilhelm A. Groen

Inventor
Limbricht, NL

Overview

14→
Patents
1995–2020
Patent span
Electricity
Primary field (CPC H)

Patents· 14 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

H01Jprimary
H01JElectric discharge tubes or discharge lamps19%
H01CResistors15%
C04BLime, magnesia7%
G01KMeasuring temperature7%
H01GCapacitors7%
H10WGeneric packages, interconnections, connectors or other constructional details of devices covered by class h107%
C01GCompounds containing metals not covered by subclasses c01d or c01f4%
C01PIndexing scheme relating to structural and physical aspects of solid inorganic compounds4%
C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients4%
G02FOptical devices or arrangements for the control of light by modification of the optical properties of the media of the elements involved therein4%

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1995–2002Patents assigned to PHILIPS CORP (6)· patent assignee history
1995–2020Based in Eindhoven, NL· patent location history
1999–2004Based in Limbricht, NL· patent location history
2003–2006Patents assigned to KONINKL PHILIPS ELECTRONICS NV (6)· patent assignee history
2004–2006Based in Einighausen, NL· patent location history
2020Patents assigned to NEDERLANDSE ORGANISATIE VOOR TOEGEPAST-NATUURWETENSCHAPPELIJK ONDERZOEK TNO (1)· patent assignee history
2020Patents assigned to SABIC GLOBAL TECHNOLOGIES BV (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
KONINKL PHILIPS ELECTRONICS NV62003–2006
PHILIPS CORP61995–2002
NEDERLANDSE ORGANISATIE VOOR TOEGEPAST-NATUURWETENSCHAPPELIJK ONDERZOEK TNO12020
SABIC GLOBAL TECHNOLOGIES BV12020
Locations
LocationPatentsSpan
Limbricht, NL71999–2004
Einighausen, NL42004–2006
Eindhoven, NL31995–2020