Forward Citations = 83

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7 inventors (with patents filed for the assignee):

Friedrich Keilholz (2 out of 2 patents)

Adolf Adrian (1 out of 7 patents)

Wolfgang Anell (1 out of 1 patent)

4. Erwin Hausmann (1 out of 1 patent)

5. Hugo Rutenbeck (1 out of 1 patent)

6. Willi Erschens (1 out of 1 patent)

7. Johannes J De Baan (1 out of 6 patents)

7 patents: Sort by Forward Citations

1. 4290511 - Load-carrying strut construction (1981-09-22),

2. 4194725 - Vehicle jack (1980-03-25),

3. 4129286 - Lifting jack for vehicles (1978-12-12),

4. 4106596 - Hydropneumatic single tube shock absorber, in particular steering shock (1978-08-15),

5. 4093182 - Vehicle jack (1978-06-06),

6. 3989225 - Vehicle lifting jack (1976-11-02),

7. 3958672 - Shock absorber valve construction (1976-05-25),

Company Overview

Firma August Bilstein is a leading manufacturer of suspension components for the automotive industry. With a history dating back to 1919, the company has established a reputation for producing high-quality products that enhance vehicle performance and safety. Their products are used by major automotive manufacturers worldwide, and they continue to innovate and push the boundaries of suspension technology.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 13 2026

7 Patents

#10 in Ennepetal

#4,861 in DT

Ennepetal, Germany

Firma August Bilstein

Forward Citations = 83

7 inventors:

Friedrich Keilholz (2 out of 2 patents)

Adolf Adrian (1 out of 7 patents)

Wolfgang Anell (1 out of 1 patent)

4. Erwin Hausmann (1 out of 1 patent)

5. Hugo Rutenbeck (1 out of 1 patent)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Firma August Bilstein. Retrieved from https://idiyas.com/company/firma-august-bilstein

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]