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Patent applications and USPTO patent grants for Renz; Astrid.The latest application filed is for "tap changer and vacuum interrupter for such a tap changer".
Patent | Date |
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Tap changer and vacuum interrupter for a tap changer of this kind Grant 9,607,781 - Albrecht , et al. March 28, 2 | 2017-03-28 |
Tap changer with vacuum interrupters Grant 9,293,273 - Albrecht , et al. March 22, 2 | 2016-03-22 |
Vacuum switch tube Grant 9,123,490 - Baron , et al. September 1, 2 | 2015-09-01 |
Tap changer and vacuum interrupter for such a tap changer Grant 8,947,188 - Hammer , et al. February 3, 2 | 2015-02-03 |
Vacuum interrupter Grant 8,847,097 - Renz , et al. September 30, 2 | 2014-09-30 |
Tap Changer And Vacuum Interrupter For Such A Tap Changer App 20140085028 - Hammer; Christian ;   et al. | 2014-03-27 |
Tap Changer And Vacuum Interrupter For A Tap Changer Of This Kind App 20140034463 - Albrecht; Wolfgang ;   et al. | 2014-02-06 |
Tap Changer With Vacuum Interrupters App 20140027257 - Albrecht; Wolfgang ;   et al. | 2014-01-30 |
Vacuum Switch Tube App 20130092659 - Baron; Lydia ;   et al. | 2013-04-18 |
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