% Expired Patents = 75.0

EPO Patents = 7

Forward Citations = 10

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6 inventors (with patents filed for the assignee):

Peter Gutmann (2 out of 2 patents)

Jens Pospischil (1 out of 1 patent)

Anton Schmid (1 out of 1 patent)

4. Norbert Kotulla (1 out of 1 patent)

5. Christoph Groebel (1 out of 1 patent)

6. Jin Hong Li (1 out of 1 patent)

7. Heinrich Stettinger (1 patent)

8. Frank Zerling (1 patent)

9. Lars Würker (0 patent)

10. Dominik Kempf (0 patent)

11. Wolfgang Schmidtkonz (0 patent)

4 patents: Sort by Forward Citations

1. 9683645 - Differential of lightweight construction for motor vehicles (2017-06-20),

2. 9399251 - Method and apparatus for manufacturing a gear wheel with stub toothing (2016-07-26),

3. 8562478 - Differential for motor vehicles (2013-10-22),

4. 7950305 - Toothing system of a gearwheel having involute roller toothing (2011-05-31),

Company Overview

Sona BLW Precision Forgings Ltd. is a leading manufacturer of forged and machined automotive driveline components. Established in 1995, the company has a strong presence in the global automotive market with state-of-the-art manufacturing facilities. Sona BLW offers high-quality products with a focus on innovation and sustainability.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 13 2026

4 Patents

#345 in W-8000 Munich

#7,035 in Germany

Munich, Germany

Sona Blw Prazisionsschmiede Gmbh

Forward Citations = 10

6 inventors:

Peter Gutmann (2 out of 2 patents)

Jens Pospischil (1 out of 1 patent)

Anton Schmid (1 out of 1 patent)

4. Norbert Kotulla (1 out of 1 patent)

5. Christoph Groebel (1 out of 1 patent)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Sona Blw Prazisionsschmiede Gmbh. Retrieved from https://idiyas.com/company/sona-blw-prazisionsschmiede

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]

7 patents (EPO):

Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]