Inventor
Walter Limmer
Inventor
Munich, DE
Overview
Patents· 14 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
H05Bprimary
H05BElectric heating43%
Y02BClimate change mitigation technologies related to buildings, e.g. housing, house appliances or related end-user applications29%
H02MApparatus for conversion between ac and ac, between ac and dc, or between dc and dc, and for use with mains or similar power supply systems11%
H03KPulse technique7%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests7%
G05FSystems for regulating electric or magnetic variables4%
PatentTitleYear
9,554,430'Lighting system with an interface having a power supply unit and at least one light source module'20178,884,544'Method for operating a lamp and electronic ballast'20148,760,069'Circuit arrangement and method for operating a high pressure discharge lamp'20148,618,739'Circuit arrangement and method for operating discharge lamps'20138,531,122'Circuit arrangement and method for operation of a discharge lamp'20138,492,994'Method and circuit arrangement for making a lamp wattage available for operating at least one gas discharge lamp'20138,089,220'Circuit arrangement and method for operating a high-pressure discharge lamp'20127,541,744'Electronic ballast for a high-pressure discharge lamp having a current-measuring device'20097,145,293'Electronic ballast having resonance excitation for generating a transfer voltage'20067,116,084'Step-up converter having power factor correction'20066,891,337'Lighting system'20056,831,422'Operating circuit with an improved power supply for a driver circuit'20046,362,576'Circuit arrangement for igniting a lamp'20026,268,758'Circuit arrangement with half-bridge'2001Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2001–2006Patents assigned to PATENT TREUHAND GES FUER ELEKTRISCHE GLUEHLAMPEN MBH (5)· patent assignee history
2001–2017Based in Munich, DE· patent location history
2002Based in Mnchen, DE· patent location history
2006–2014Based in München, DE· patent location history
2009–2017Patents assigned to OSRAM GMBH (7)· patent assignee history
2012–2014Patents assigned to LIMMER WALTER (6)· patent assignee history
2012–2014Patents assigned to BRAUN ALOIS (5)· patent assignee history
2013–2014Patents assigned to SCHMIDL MAXIMILIAN (4)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| OSRAM GMBH | 7 | 2009–2017 |
| LIMMER WALTERself | 6 | 2012–2014 |
| BRAUN ALOIS | 5 | 2012–2014 |
| PATENT TREUHAND GES FUER ELEKTRISCHE GLUEHLAMPEN MBH | 5 | 2001–2006 |
| SCHMIDL MAXIMILIAN | 4 | 2013–2014 |
Locations
| Location | Patents | Span |
|---|---|---|
| Munich, DE | 8 | 2001–2017 |
| München, DE | 5 | 2006–2014 |
| Mnchen, DE | 1 | 2002 |