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Inventor profile of:

Walter Lehmann

City:

Leipzig

Country:

Germany

Published Applications:

30

Last publication date:

2023-03-02

Top Assignees for applications by Walter Lehmann

The entities that hold a legal rights for patent applications filed by inventor Lehmann Walter:

HERAEUS QUARZGLAS GMBH & CO KG 21 Hanau, Germany
Heraeus Quarzglas GmbH & Co. KG 18 Hanau, Germany
Heraus Quarzglas GmbH & Co. KG 1 Hanau, Germany
Heraes Quarzglas GmbH & Co. KG 1 Hanau, Germany
HERAEUS QUARZGLAS GMBH & CO. KG 1 Bitterfeld Wolfen, Germany
Heraeus Quarzglas GmbH & Co KG 1 Leipzig, Germany
Heraeus Quarzglas GmbH & Co. KG 1 , Germany
HERAEUS SHIN-ETSU AMERICA, INC. 1 Camas, WA United States

Recent patent applications by Lehmann Walter

Walter Lehmann from Leipzig, DE has applied for patents for these inventions. The list has both pending applications and granted patents:

#1 | 2023-03-02

US20230063663A1

Chemistry; metallurgy

Method for homogenizing glass

#2 | 2020-11-19

US20200361806A1

Chemistry; metallurgy

Preparation of a quartz glass body in a multi-chamber oven

#3 | 2020-04-30

US20200131071A1

Chemistry; metallurgy

Method for homogenizing glass

#4 | 2020-04-30

US20200131069A1

Chemistry; metallurgy

Method and device for homogenizing glass

#5 | 2019-05-23

US20190152827A1

Chemistry; metallurgy

PREPARATION OF QUARTZ GLASS BODIES FROM SILICON DIOXIDE POWDER

#6 | 2019-03-28

US20190092676A1

Chemistry; metallurgy

PREPARATION OF A QUARTZ GLASS BODY IN A HANGING SINTER CRUCIBLE

#7 | 2019-03-14

US20190077688A1

Chemistry; metallurgy

PREPARATION OF A QUARTZ GLASS BODY IN A HANGING METAL SHEET CRUCIBLE

#8 | 2019-03-14

US20190077672A1

Chemistry; metallurgy

REDUCING CARBON CONTENT OF SILICON DIOXIDE GRANULATE AND THE PREPARATION OF A QUARTZ GLASS BODY

#9 | 2019-03-07

US20190071344A1

Chemistry; metallurgy

Preparation of a quartz glass body in a melting crucible of refractory metal

#10 | 2019-03-07

US20190071342A1

Chemistry; metallurgy

PREPARATION AND POST-TREATMENT OF A QUARTZ GLASS BODY

#11 | 2019-02-28

US20190062197A1

Chemistry; metallurgy

Preparation of quartz glass bodies from silicon dioxide granulate

#12 | 2019-02-28

US20190062194A1

Chemistry; metallurgy

STEAM TREATMENT OF SILICON DIOXIDE POWDER IN THE PREPARATION OF QUARTZ GLASS

#13 | 2019-02-28

US20190062193A1

Chemistry; metallurgy

Preparation of a quartz glass body in a multi-chamber oven

#14 | 2019-01-31

US20190031554A1

Chemistry; metallurgy

PREPARATION OF A QUARTZ GLASS BODY IN A STANDING SINTER CRUCIBLE

#15 | 2018-12-27

US20180370838A1

Chemistry; metallurgy

AMMONIA TREATMENT OF SILICON DIOXIDE POWDER IN THE PREPARATION OF QUARTZ GLASS

#16 | 2018-12-20

US20180362385A1

Chemistry; metallurgy

Preparation of a synthetic quartz glass grain

#17 | 2018-10-04

US20180282196A1

Chemistry; metallurgy

Method for producing a component of rare earth metal-doped quartz glass

#18 | 2018-04-26

US20180112327A1

Chemistry; metallurgy

Pulling a semiconductor single crystal according to the Czochralski method and silica glass crucible suitable therefor

#19 | 2017-12-28

US20170369359A1

Chemistry; metallurgy

Rare earth metal-doped quartz glass and method for producing the same

#20 | 2016-02-04

US20160032483A1

Chemistry; metallurgy

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

#21 | 2015-09-24

US20150267318A1

Chemistry; metallurgy

Pulling a semiconductor single crystal according to the Czochralski method

#22 | 2015-04-23

US20150107301A1

Chemistry; metallurgy

Method for producing synthetic quartz glass granules

#23 | 2015-03-05

US20150059407A1

Chemistry; metallurgy

Method for producing synthetic quartz glass granules

#24 | 2015-02-26

US20150052948A1

Chemistry; metallurgy

METHOD FOR PRODUCING A MOLDED BODY FROM AN ELECTRICALLY MELTED SYNTHETIC QUARTZ GLASS

#25 | 2013-08-29

US20130219963A1

Chemistry; metallurgy

METHOD FOR PRODUCING SYNTHETIC QUARTZ GLASS GRANULES

#26 | 2011-05-26

US20110123738A1

Chemistry; metallurgy

Method of making a silica crucible in a controlled atmosphere

#27 | 2011-05-26

US20110120189A1

Chemistry; metallurgy

Method for producing a component with a layer of transparent quartz glass

#28 | 2009-12-31

US20090320521A1

Chemistry; metallurgy

Method of producing a quartz glass crucible

#29 | 2009-11-12

US20090277223A1

Chemistry; metallurgy

Method and apparatus for producing a crucible of quartz glass

#30 | 2007-06-28

US20070145332A1

Chemistry; metallurgy

Method for the production of laser-active quartz glass and use thereof

InventorID:

407262 ⎘