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Inventor

Dietmar Sprenger

Inventor
Waengle, AT

Overview

6→
Patents
1990–2020
Patent span
Performing operations
Primary field (CPC B)

Patents· 6 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

C23Cprimary
C23CCoating metallic material12%
H01JElectric discharge tubes or discharge lamps12%
B01JChemical or physical processes, e.g. catalysis or colloid chemistry6%
B05BSpraying apparatus6%
B22DCasting of metals6%
B22FWorking metallic powder6%
B41BMachines or accessories for making, setting, or distributing type6%
C03BManufacture, shaping, or supplementary processes6%
C30BSingle-crystal growth6%
G06KGraphical data reading6%
PatentTitleYear
10,730,111Container of refractory metal202010,415,141Process for producing a layer20199,686,822'Glass-melting electrode with cooling device and cooling device for a glass-melting electrode'20176,132,812'Process for making an anode for X-ray tubes'20005,993,280'Method for manufacturing a rotary anode assembly'19994,949,281'Method and apparatus for generating and producing two-dimensional graphic object by polynominal parametric curves'1990

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1990Patents assigned to BERTHOLD AG H (1)· patent assignee history
1990Based in Berlin, DE· patent location history
1999Patents assigned to SCHWARZKOPF TECHNOLOGIES (1)· patent assignee history
1999–2000Based in Reutte, AT· patent location history
2000Patents assigned to SCHWARZKOPF TECHNOLOGIES CORP (1)· patent assignee history
2017–2020Patents assigned to PLANSEE SE (3)· patent assignee history
2017–2020Based in Waengle, AT· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
PLANSEE SE32017–2020
BERTHOLD AG H11990
SCHWARZKOPF TECHNOLOGIES11999
SCHWARZKOPF TECHNOLOGIES CORP12000
Locations
LocationPatentsSpan
Waengle, AT32017–2020
Reutte, AT21999–2000
Berlin, DE11990