Inventor
Ludwig Schmidt
Inventor
Munich, DE
Overview
Patents· 14 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
G10Lprimary
G10LSpeech analysis techniques or speech synthesis13%
B41JTypewriters8%
C01GCompounds containing metals not covered by subclasses c01d or c01f8%
C25BElectrolytic or electrophoretic processes for the production of compounds or non-metals8%
C25CProcesses for the electrolytic production, recovery or refining of metals8%
A62CFire-fighting4%
B27FDovetailed work4%
B65BMachines, apparatus or devices for, or methods of, packaging articles or materials4%
B82YSpecific uses or applications of nanostructures4%
C04BLime, magnesia4%
PatentTitleYear
D0923780Sanitary towel202110,565,996Speaker identification202010,140,991Using audio characteristics to identify speakers and media items20189,514,753'Speaker identification using hash-based indexing'20166,154,025'Contactless potentiometer and device for contactlessly sensing a position of an object'20005,358,346'Paper-separating device for prefolded continuous paper in a printing device'19945,181,994'Process for the preparation of chromic acid'19935,096,548'Process for the preparation of chromic acid'19924,988,008'Supporting framework for a control cabinet'19914,574,556'Label inserting apparatus'19864,232,974'Means for the production of a multi-component plastics material'19804,170,404'Mounting structure for optical assemblies in nonmechanical printers'19794,147,401'Polygonal mirror holder and drive assembly'19793,982,955'Aluminum oxide fibers and their production'1976Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1976–1993Patents assigned to BAYER AG (3)· patent assignee history
1976–1993Based in Krefeld, DE· patent location history
1979–2000Patents assigned to SIEMENS AG (4)· patent assignee history
1979–2000Based in Munich, DE· patent location history
1991Based in Frankfurt am Main, DE· patent location history
2016Patents assigned to GOOGLE INC (1)· patent assignee history
2016–2020Based in Cambridge, MA, US· patent location history
2018–2020Patents assigned to GOOGLE LLC (2)· patent assignee history
2021Patents assigned to HYGIENE OEDERAN PRODUKTIONSGESELLSCHAFT MBH HERSTELLUNG VON DAMEN UND ERWACHSENENHYGIENE (1)· patent assignee history
2021Based in Mayen, DE· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| SIEMENS AG | 4 | 1979–2000 |
| BAYER AG | 3 | 1976–1993 |
| GOOGLE LLC | 2 | 2018–2020 |
| GOOGLE INC | 1 | 2016 |
| HYGIENE OEDERAN PRODUKTIONSGESELLSCHAFT MBH HERSTELLUNG VON DAMEN UND ERWACHSENENHYGIENE | 1 | 2021 |
Locations
| Location | Patents | Span |
|---|---|---|
| Munich, DE | 4 | 1979–2000 |
| Cambridge, Massachusetts, US | 3 | 2016–2020 |
| Krefeld, DE | 3 | 1976–1993 |
| Mayen, DE | 1 | 2021 |
| Frankfurt am Main, DE | 1 | 1991 |