Inventor

Johannes Marra

Inventor

Eindhoven, NL

Overview

14→

Patents

1993–2014

Patent span

Physics

Primary field (CPC G)

Patents· 14 as inventor

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

G02Bprimary

G02BOptical elements, systems or apparatus14%

B01DSeparation11%

F21VFunctional features or details of lighting devices or systems thereof11%

F21YIndexing scheme associated with subclasses f21k, f21l, f21s and f21v, relating to the form or the kind of the light sources or of the colour of the light emitted11%

B03CMagnetic or electrostatic separation of solid materials from solid materials or fluids7%

G01NInvestigating or analysing materials by determining their chemical or physical properties7%

G09FDisplaying7%

G09GArrangements or circuits for control of indicating devices using static means to present variable information7%

C02FTreatment of water, waste water, sewage, or sludge4%

D06FLaundering, drying, ironing, pressing or folding textile articles4%

PatentTitleYear

8,627,732'Device for characterizing a size distribution of electrically-charged airborne particles in an air flow'2014 8,607,616'Sensor for sensing airborne particles'2013 7,314,292'Lighting device'2008 7,222,994'Illumination system'2007 7,128,443'Light-collimating system'2006 7,068,910'Light generating device having polarized light emitting waveguide plate'2006 6,956,332'Display device comprising a light guide'2005 6,653,997'Display device comprising a light guide'2003 6,413,303'Activated carbon air filters'2002 6,251,171'Air cleaner'2001 6,071,479'Air filtration device'2000 5,966,426'X-ray examination apparatus including an x-ray filter'1999 5,507,108'Steam iron with scale prevention'1996 5,271,774'Method for removing in a centrifuge a liquid from a surface of a substrate'1993

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1993–2001Patents assigned to PHILIPS CORP (5)· patent assignee history

1993–2014Based in Eindhoven, NL· patent location history

2002–2008Patents assigned to KONINKL PHILIPS ELECTRONICS NV (7)· patent assignee history

2013–2014Patents assigned to KONINKL PHILIPS NV (2)· patent assignee history

2013–2014Patents assigned to MARRA JOHANNES (2)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
KONINKL PHILIPS ELECTRONICS NV	7	2002–2008
PHILIPS CORP	5	1993–2001
KONINKL PHILIPS NV	2	2013–2014
MARRA JOHANNESself	2	2013–2014

Locations

Location	Patents	Span
Eindhoven, NL	14	1993–2014