LEHMANN; Walter

Patent Applications and Registrations

Patent applications and USPTO patent grants for LEHMANN; Walter.The latest application filed is for "process for the preparation of synthetic quartz glass".

Company Profile

19.18.34

LEHMANN; Walter - Kleinostheim DE
Lehmann; Walter - Leipzig DE
Lehmann; Walter - Hanau DE
Lehmann; Walter - Leipzlg DE

*profile and listings may contain filings by different individuals or companies with the same name. Review application materials to confirm ownership/assignment.

Patent Activity

Patent	Date
Process For The Preparation Of Synthetic Quartz Glass App 20220185720 - THURER; Martin ; et al.	2022-06-16
Process For The Preparation Of Synthetic Quartz Glass App 20220185716 - THURER; Martin ; et al.	2022-06-16
Process For The Preparation Of Synthetic Quartz Glass App 20220185715 - THURER; Martin ; et al.	2022-06-16
Preparation of a quartz glass body in a melting crucible of refractory metal Grant 11,299,417 - Otter , et al. April 12, 2	2022-04-12
Method for producing a component of rare earth metal-doped quartz glass Grant 10,851,008 - Lehmann , et al. December 1, 2	2020-12-01
Preparation Of A Quartz Glass Body In A Multi-chamber Oven App 20200361806 - OTTER; Matthias ; et al.	2020-11-19
Method And Apparatus For Producing A Glass Component App 20200277217 - Plass; Jacqueline ; et al.	2020-09-03
Preparation of a quartz glass body in a multi-chamber oven Grant 10,730,780 - Otter , et al.	2020-08-04
Method For Homogenizing Glass App 20200131071 - Thomas; Stephan ; et al.	2020-04-30
Method And Device For Homogenizing Glass App 20200131069 - Thomas; Stephan ; et al.	2020-04-30
Preparation of a synthetic quartz glass grain Grant 10,618,833 - Arndt , et al.	2020-04-14
Rare earth metal-doped quartz glass and method for producing the same Grant 10,336,645 - Baierl , et al.	2019-07-02
Preparation Of Quartz Glass Bodies From Silicon Dioxide Powder App 20190152827 - OTTER; Matthias ; et al.	2019-05-23
Pulling a semiconductor single crystal according to the Czochralski method and silica glass crucible suitable therefor Grant 10,287,705 - Hunermann , et al.	2019-05-14
Preparation Of A Quartz Glass Body In A Hanging Sinter Crucible App 20190092676 - OTTER; Matthias ; et al.	2019-03-28
Preparation Of A Quartz Glass Body In A Hanging Metal Sheet Crucible App 20190077688 - OTTER; Matthias ; et al.	2019-03-14
Reducing Carbon Content Of Silicon Dioxide Granulate And The Preparation Of A Quartz Glass Body App 20190077672 - OTTER; Matthias ; et al.	2019-03-14
Preparation Of A Quartz Glass Body In A Melting Crucible Of Refractory Metal App 20190071344 - OTTER; Matthias ; et al.	2019-03-07
Preparation And Post-treatment Of A Quartz Glass Body App 20190071342 - OTTER; Matthias ; et al.	2019-03-07
Steam Treatment Of Silicon Dioxide Powder In The Preparation Of Quartz Glass App 20190062194 - OTTER; Matthias ; et al.	2019-02-28
Preparation Of Quartz Glass Bodies From Silicon Dioxide Granulate App 20190062197 - OTTER; Matthias ; et al.	2019-02-28
Preparation Of A Quartz Glass Body In A Multi-chamber Oven App 20190062193 - OTTER; Matthias ; et al.	2019-02-28
Preparation Of A Quartz Glass Body In A Standing Sinter Crucible App 20190031554 - OTTER; Matthias ; et al.	2019-01-31
Ammonia Treatment Of Silicon Dioxide Powder In The Preparation Of Quartz Glass App 20180370838 - OTTER; Matthias ; et al.	2018-12-27
Preparation Of A Synthetic Quartz Glass Grain App 20180362385 - ARNDT; Martin ; et al.	2018-12-20
Method For Producing A Component Of Rare Earth Metal-doped Quartz Glass App 20180282196 - Lehmann; Walter ; et al.	2018-10-04
Pulling A Semiconductor Single Crystal According To The Czochralski Method And Silica Glass Crucible Suitable Therefor App 20180112327 - Hunermann; Michael ; et al.	2018-04-26
Pulling a semiconductor single crystal according to the Czochralski method Grant 9,856,576 - Hunermann , et al. January 2, 2	2018-01-02
Rare Earth Metal-doped Quartz Glass And Method For Producing The Same App 20170369359 - BAIERL; Hardy ; et al.	2017-12-28
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 Grant 9,828,691 - Schenk , et al. November 28, 2	2017-11-28
Method for producing synthetic quartz glass granules Grant 9,580,348 - Lehmann , et al. February 28, 2	2017-02-28
Method for producing synthetic quartz glass granules Grant 9,409,810 - Lehmann , et al. August 9, 2	2016-08-09
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 App 20160032483 - SCHENK; Christian ; et al.	2016-02-04
Pulling A Semiconductor Single Crystal According To The Czochralski Method And Silica Glass Crucible Suitable Therefor App 20150267318 - Hunermann; Michael ; et al.	2015-09-24
Method For Producing Synthetic Quartz Glass Granules App 20150107301 - Lehmann; Walter ; et al.	2015-04-23
Method of making a silica crucible in a controlled atmosphere Grant 9,003,832 - Kemmochi , et al. April 14, 2	2015-04-14
Method For Producing Synthetic Quartz Glass Granules App 20150059407 - Lehmann; Walter ; et al.	2015-03-05
Method For Producing A Molded Body From An Electrically Melted Synthetic Quartz Glass App 20150052948 - Lehmann; Walter ; et al.	2015-02-26
Method and apparatus for producing a crucible of quartz glass Grant 8,789,391 - Kayser , et al. July 29, 2	2014-07-29
Method For Producing Synthetic Quartz Glass Granules App 20130219963 - Lehmann; Walter ; et al.	2013-08-29
Method for producing a component with a layer of transparent quartz glass Grant 8,387,413 - Lehmann , et al. March 5, 2	2013-03-05
Method of producing a quartz glass crucible Grant 8,347,650 - Lehmann , et al. January 8, 2	2013-01-08
Method for producing a component with a layer of transparent quartz glass App 20110120189 - Lehmann; Walter ; et al.	2011-05-26
Method Of Making A Silica Crucible In A Controlled Atmosphere App 20110123738 - Kemmochi; Katsuhiko ; et al.	2011-05-26
Method of producing a quartz glass crucible App 20090320521 - Lehmann; Walter ; et al.	2009-12-31
Method for the production of laser-active quartz glass and use thereof Grant 7,637,126 - Koeppler , et al. December 29, 2	2009-12-29
Method and apparatus for producing a crucible of quartz glass App 20090277223 - Kayser; Thomas ; et al.	2009-11-12
Method for the production of laser-active quartz glass and use thereof App 20070145332 - Koeppler; Rainer ; et al.	2007-06-28

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