Inventor · disambiguated record
Karen Twesten
Also filed as: TWESTEN KAREN
7 granted patents·6 pending applications·19 citations·filing 1996–2011
78Inventor score
Files withOSRAM GMBH5PATENT TREUHAND GES FUER ELEKTRISCHE GLUEHLAMPEN MBH5BEAU MICHAEL1OSRAM AG1PATENT TREUHAND GES F ELEK SCH1
Top patents by PatentIndex Score
13 records- 0159US7977854B2Component for an electric lamp with outer bulbOSRAM GMBH·Filed 2008·Granted Jul 12, 2011·1 cites·12 claims
- 0250US7745999B2Lamp which is closed on two sidesOSRAM GMBH·Filed 2007·Granted Jun 29, 2010·0 cites·24 claims
- 0350US7221098B2Electric lamp with outer bulb and associated support bodyPATENT TREUHAND GES FUER ELEKTRISCHE GLUEHLAMPEN MBH·Filed 2004·Granted May 22, 2007·2 cites·8 claims
- 0448US7253562B2Lamp which is closed on two sidesPATENT TREUHAND GES FUER ELEKTRISCHE GLUEHLAMPEN MBH·Filed 2004·Granted Aug 7, 2007·3 cites·7 claims
- 0548US2010244647A1High-Pressure Discharge LampOSRAM GMBH·Filed 2007·Application pending·0 cites
- 0647US7112116B2Process for producing an electric lamp with outer bulbPATENT TREUHAND GES FUER ELEKTRISCHE GLUEHLAMPEN MBH·Filed 2004·Granted Sep 26, 2006·2 cites·9 claims
- 0744US2008238322A1Structural unit for an electric lamp with an outer bulbPATENT TREUHAND GES FUER ELEKTRISCHE GLUEHLAMPEN MBH·Filed 2008·Application pending·0 cites
- 0843US2010308723A1Electrode for a high-pressure discharge lamp, and method for the production thereofOSRAM GMBH·Filed 2008·Application pending·0 cites
- 0940US5920400AMethod and device for determining the purity and/or pressure of gases for electric lampsPATENT TREUHAND GES FUER ELEKTRISCHE GLUEHLAMPEN MBH·Filed 1996·Granted Jul 6, 1999·11 cites·38 claims
- 1039US2011235336A1Diffusing plateOSRAM GMBH·Filed 2009·Application pending·0 cites
- 1135US6617790B2Metal halide lamp with ceramic discharge vesselPATENT TREUHAND GES F ELEK SCH·Filed 2001·Granted Sep 9, 2003·0 cites·10 claims
- 1230US2013009533A1High-pressure discharge lamp with graduated outer bulbOSRAM AG·Filed 2011·Application pending·0 cites
- 1325US2012161622A1High-pressure discharge lamp with starting aidBEAU MICHAEL·Filed 2011·Application pending·0 cites
Join the waitlist — get patent alerts
Get an alert when Karen Twesten files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →