Stefan Dunkel

Follow

Person

Berlin, DE

People

Patents Grantslast 30 patents

Information Patent Grant
Discharge lamp with an outer bulb surrounded by a wire gauze as exp...
- Patent number 8,786,187
- Issue date Jul 22, 2014
- Osram GmbH
- Johannes Buttstaedt
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
High-pressure discharge lamp having a capacitive ignition aid
- Patent number 8,664,855
- Issue date Mar 4, 2014
- Osram AG
- Johannes Buttstaedt
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Lamp
- Patent number D690446
- Issue date Sep 24, 2013
- Osram AG
- Johannes Buttstaedt
- D26 - Lighting
Information Patent Grant
High pressure discharge lamp with a capacitive starting aid
- Patent number 8,227,990
- Issue date Jul 24, 2012
- Osram AG
- Johannes Buttstaedt
- H01 - BASIC ELECTRIC ELEMENTS

Patents Applicationslast 30 patents

Information Patent Application
DISCHARGE LAMP WITH AN OUTER BULB SURROUNDED BY A WIRE MESH AS EXPL...
- Publication number 20130285543
- Publication date Oct 31, 2013
- OSRAM GMBH
- Johannes Buttstaedt
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
HIGH-PRESSURE DISCHARGE LAMP HAVING A CAPACITIVE IGNITION AID
- Publication number 20130181604
- Publication date Jul 18, 2013
- OSRAM AG
- Johannes Buttstaedt
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
HIGH PRESSURE DISCHARGE LAMP WITH A CAPACITIVE STARTING AID
- Publication number 20110074285
- Publication date Mar 31, 2011
- OSRAM Gesellschaft mit beschraenkter Haftung
- Johannes Buttstaedt
- H01 - BASIC ELECTRIC ELEMENTS