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Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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Siegfried Kunzmann — 9 Patents

IBM: 6 patents #16,491 of 70,183Top 25%
Amazon: 2 patents #7,232 of 19,158Top 40%
Microsoft: 1 patents #24,968 of 40,388Top 65%
Heidelberg, DE: #226 of 2,101 inventorsTop 15%
Overall (All Time): #535,341 of 4,157,543Top 15%
9 Patents All Time
Siegfried Kunzmann has been granted 9 US patents while listed as an inventor at IBM. The first was granted in 1999 and the most recent in June 2024. Siegfried Kunzmann ranks #535,341 of 4,157,543 US inventors in our database (top 12.9%). Patent records list Siegfried Kunzmann in Heidelberg, DE.

Patents per Year

Patents granted per year, 1999 to 2024Bar chart with a peak of 2 patents in 2004.peak 21999: 1 patents19992004: 2 patents20042006: 1 patents20062007: 2 patents20072013: 1 patents20132024: 2 patents2024

Issued Patents All Time

Showing 1–9 of 9 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
12002451 Automatic speech recognition Jing Liu, Feng-Ju Chang, Athanasios Mouchtaris, Martin Radfar, Maurizio Omologo 2024-06-04 $352,569,000
11915690 Automatic speech recognition Feng-Ju Chang, Martin Radfar, Athanasios Mouchtaris, Brian King, Maurizio Omologo 2024-02-27 $290,362,000
8412528 Back-end database reorganization for application-specific concatenative text-to-speech systems Volker Fischer 2013-04-02 $27,365,000
7302393 Sensor based approach recognizer selection, adaptation and combination Volker Fischer 2007-11-27 $7,635,000
7213151 Method and computer system for encoding of information into a representation Carsten Guenther, Werner Kriechbaum, Bernhard Zeller 2007-05-01 $7,088,000
6999925 Method and apparatus for phonetic context adaptation for improved speech recognition Volker Fischer, Eric William Janke, A. Jon Tyrrell 2006-02-14 $5,958,000
6789061 Method and system for generating squeezed acoustic models for specialized speech recognizer Volker Fischer, Claire Waast-Ricard 2004-09-07 $9,920,000
6738741 Segmentation technique increasing the active vocabulary of speech recognizers Ossama Emam 2004-05-18 $9,414,000
5899973 Method and apparatus for adapting the language model's size in a speech recognition system Upali Bandara, Karlheinz Mohr, Burn Lewis 1999-05-04 $26,914,000