Inventor

Klaus Wammes

Inventor

Bechtheim, DE

Overview

8→

Patents

2002–2021

Patent span

Physics

Primary field (CPC G)

Patents· 8 as inventor

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

G02Fprimary

G02FOptical devices or arrangements for the control of light by modification of the optical properties of the media of the elements involved therein22%

G09GArrangements or circuits for control of indicating devices using static means to present variable information17%

G02BOptical elements, systems or apparatus11%

H05BElectric heating11%

Y02BClimate change mitigation technologies related to buildings, e.g. housing, house appliances or related end-user applications11%

F21VFunctional features or details of lighting devices or systems thereof6%

G06FElectric digital data processing6%

G09FDisplaying6%

H01JElectric discharge tubes or discharge lamps6%

H04NPictorial communication, e.g. television6%

PatentTitleYear

11,119,348Optical arrangement for improving the display quality of a display2021 7,224,327'Liquid crystal color display suitable for night-sight glasses'2007 7,026,748'Lighting unit for flat panel display device'2006 6,822,398'Illumination unit having at least one essentially U-shaped gas discharge lamp'2004 6,633,306'Active matrix liquid crystal display'2003 6,593,904'Active matrix liquid crystal display'2003 6,522,082'Electronic ballast for discharge lamp comprising dielectrically impeded discharges'2003 6,353,294'Operational method and electronic ballast for a discharge lamp comprising dielectrically impeded discharges'2002

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2002–2003Patents assigned to PATENT TREUHAND GES FUER ELEKTRISCHE GLUEHLAMPEN MBH (2)· patent assignee history

2002–2003Based in Alsheim, DE· patent location history

2003–2007Patents assigned to SIEMENS AG (5)· patent assignee history

2004–2021Based in Bechtheim, DE· patent location history

2021Patents assigned to BSH HAUSGERAETE GMBH (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
SIEMENS AG	5	2003–2007
PATENT TREUHAND GES FUER ELEKTRISCHE GLUEHLAMPEN MBH	2	2002–2003
BSH HAUSGERAETE GMBH	1	2021

Locations

Location	Patents	Span
Bechtheim, DE	4	2004–2021
Alsheim, DE	4	2002–2003