WL

Walter Lehmann

HQ Heraeus Quarzglas: 23 patents #2 of 287Top 1%
HA Heraeus Shin-Etsu America: 1 patents #6 of 10Top 60%
Overall (All Time): #167,530 of 4,157,543Top 5%
24
Patents All Time

Issued Patents All Time

Showing 1–24 of 24 patents

Patent #TitleCo-InventorsDate
12246981 Method for homogenizing glass Stephan Thomas, Jan Vydra, Martin Trommer, Michael Huenermann, Andreas Langner +2 more 2025-03-11
12246982 Process for the preparation of synthetic quartz glass Martin Thürer, Martin Trommer 2025-03-11
12060293 Process for the preparation of synthetic quartz glass Martin Thürer, Martin Trommer 2024-08-13
11708290 Preparation of a quartz glass body in a multi-chamber oven Matthias Otter, Michael Hünermann, Nils Christian Nielsen, Nigel Whippey, Boris Gromann +2 more 2023-07-25
11512017 Method and apparatus for producing a glass component Jacqueline Plass, Dörte Schönfeld, Clemens Schmitt, Alexander Laaz, Andreas Langner +4 more 2022-11-29
11492285 Preparation of quartz glass bodies from silicon dioxide granulate Matthias Otter, Michael Hünermann, Nils Christian Nielsen, Mirko Wittrin, Markus Wilde 2022-11-08
11485671 Method for homogenizing glass Stephan Thomas, Jan Vydra, Martin Trommer, Michael Huenermann, Andreas Langner +2 more 2022-11-01
11459262 Method and device for homogenizing glass Stephan Thomas, Jan Vydra, Martin Trommer, Michael Huenermann, Andreas Langner +2 more 2022-10-04
11299417 Preparation of a quartz glass body in a melting crucible of refractory metal Matthias Otter, Michael Hünermann, Nils Christian Nielsen, Nigel Whippey, Boris Gromann +1 more 2022-04-12
10851008 Method for producing a component of rare earth metal-doped quartz glass Mario Such, Thomas Kayser, Andreas Langner, Gerhard Schötz 2020-12-01
10730780 Preparation of a quartz glass body in a multi-chamber oven Matthias Otter, Michael Hünermann, Nils Christian Nielsen, Nigel Whippey, Boris Gromann +2 more 2020-08-04
10618833 Preparation of a synthetic quartz glass grain Martin Arndt, Matthias Otter, Michael Hünermann, Nils Christian Nielsen, Nigel Whippey +2 more 2020-04-14
10336645 Rare earth metal-doped quartz glass and method for producing the same Hardy Baierl, Stephan Grimm, Kay Schuster, Jan Dellith, Andreas Langner +2 more 2019-07-02
10287705 Pulling a semiconductor single crystal according to the Czochralski method and silica glass crucible suitable therefor Michael Hünermann, Thomas Kayser 2019-05-14
9856576 Pulling a semiconductor single crystal according to the Czochralski method Michael Hünermann, Thomas Kayser 2018-01-02
9828691 Silicon block, method for producing the same, crucible of transparent or opaque fused silica suited for performing the method, and method for the production thereof Christian Schenk, Gerrit Scheich, Nils Christian Nielsen, Bernhard Freudenberg, Kaspars DADZIS +3 more 2017-11-28
9580348 Method for producing synthetic quartz glass granules Achim Hofmann, Thomas Kayser, Martin Arndt 2017-02-28
9409810 Method for producing synthetic quartz glass granules Thomas Kayser 2016-08-09
9003832 Method of making a silica crucible in a controlled atmosphere Katsuhiko Kemmochi, Thomas Kayser, Robert Joseph Coolich 2015-04-14
8789391 Method and apparatus for producing a crucible of quartz glass Thomas Kayser, Hilmar Laudahn 2014-07-29
8387413 Method for producing a component with a layer of transparent quartz glass Thomas Kayser 2013-03-05
8347650 Method of producing a quartz glass crucible Achim Hofmann, Thomas Kayser 2013-01-08
7637126 Method for the production of laser-active quartz glass and use thereof Rainer Koeppler, Bodo Kuehn, Waltraud Werdecker, Ulrich Kirst 2009-12-29
5839295 Refrigeration/heat pump module 1998-11-24